This list is almost like a history lesson, some of the languages below are over half a century old. It is by no means exhaustive, but there are just so many of them. A large chunk of these languages are no longer active or supported. We added links to the official site where possible, otherwise linked to a knowledgable source or manual. If there is a better link for any of them, please let us know or check out this larger list.
- 51-FORTH
https://codelani.com/languages/51forth - 1C:Enterprise Script
https://1c-dn.com/1c_enterprise/1c_enterprise_script - 4DOS
https://www.4dos.info - A+
http://www.aplusdev.org - A++
https://www.aplusplus.net - A♯ (Axiom)
http://axiom-developer.org - A-0 System
No live site - ABCL/c+
No live site - ABAP
https://www.sap.com/community/topics/abap - ABC
https://homepages.cwi.nl/~steven/abc - ABC ALGOL
No live site - ABSET
http://hopl.info/showlanguage.prx?exp=356 - Absys
No live site - ACC
No live site - Accent
No live site - Accent R
http://nissoftware.net/accentr_home - ACL2
http://www.cs.utexas.edu/users/moore/acl2 - ActionScript
https://www.adobe.com/devnet/actionscript - ActiveVFP
https://archive.codeplex.com/?p=activevfp - Actor
No live site - Ada
https://www.adaic.org - Adenine
http://www.ifcx.org/attach/Adenine - ADMB
http://www.admb-project.org - Adobe ColdFusion
https://www.adobe.com/products/coldfusion-family - Adobe Graphics Assembly Language
https://www.adobe.com/devnet/flashplayer/articles/what-is-agal - Advanced Boolean Expression Language
http://wakerly.org/DDPP/DDPP3_mkt/c04samp2 - Agda
https://wiki.portal.chalmers.se/agda - AgentCubes
https://agentcubesonline.com - AgentSheets
https://www.agentsheets.com - Agora
http://soft.vub.ac.be/research/agora - AIMMS
http://www.aimms.com - Aldor
http://www.aldor.org - Alef
http://doc.cat-v.org/plan_9/2nd_edition/papers/alef - ALF
https://www.informatik.uni-kiel.de/~mh/systems/ALF - ALGOL
http://groups.engin.umd.umich.edu/CIS/course.des/cis400/algol/algol - ALGOL 58
http://www.softwarepreservation.org/projects/ALGOL/algol58impl - ALGOL 60
http://www.algol60.org - ALGOL 68
http://www.algol68.org - AlgolW
http://www.algol60.org/15algolwlego - Alice
http://www.ps.uni-saarland.de/alice - Allegro Common Lisp
https://franz.com/products/allegro-common-lisp - Alma-0
https://www.cwi.nl - ALPACA
https://git.catseye.tc/ALPACA - ALPHA
http://citeseerx.ist.psu.edu - Alphard
http://hopl.info/showlanguage.prx?exp=634 - Altera Hardware Description Language
http://www.cs.kent.edu/~walker/classes/vlsi.s06/lectures/L10-11 - AmbientTalk
http://soft.vub.ac.be/amop/ - AMBIT
No live site - Amiga E
http://strlen.com/amiga-e - AMOS
https://ultimateamiga.co.uk/index.php/page,16 - AMPL
https://ampl.com - AMSRefs
http://www.bakoma-tex.com/doc/latex/amsrefs - ANA
http://ana.lmsal.com - Analytica
https://analytica.com - AngelScript
http://angelcode.com/angelscript - Ant
https://ant.apache.org - ANTLR
https://www.antlr.org - Apex
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode - APL
https://tryapl.org - APLX
http://www.dyalog.com/aplx - App Inventor
https://appinventor.mit.edu - Apple Befunge
https://git.catseye.tc/Apple-Befunge - AppleScript
https://www.macosxautomation.com/applescript - AppWare
https://support.novell.com/techcenter/articles/dnd19940502 - APT
http://aptos.sourceforge.net - ARB Assembly Language
https://enacademic.com/dic.nsf/enwiki/6832786 - Arboretuum
https://git.catseye.tc/Arboretuum - Arc
http://arclanguage.org - ARexx
http://members.cox.net/midian/tutorials/arexx1 - Argus
http://pmg.csail.mit.edu/~dcurtis/argus/argus-manual - ARM
http://www.peter-cockerell.net/aalp/html/frames - ASCEND
http://ascend4.org - Ateji PX
http://www.ateji.com/px/1.0/manual/pdf/AtejiPX-manual - Atom
http://hackage.haskell.org/package/atom - ATS
http://www.ats-lang.org - AutoHotkey
https://www.autohotkey.com/docs/Language - AutoIt
https://www.autoitscript.com/site/autoit - AutoLISP
http://docs.autodesk.com/ACDMAC/2013/ENU/PDFs/acdmac_2013_autolisp_developers_guide - Averest
http://www.averest.org - AWK
http://www.grymoire.com/Unix/Awk - Axum
https://docs.microsoft.com/en-us/previous-versions/dd795202(v=msdn.10) - B
https://www.bell-labs.com/usr/dmr/www/kbman - B-Prolog
http://www.picat-lang.org/bprolog - Babbage
https://ipfs.io/ipfs/QmXoypizjW3WknFiJnKLwHCnL72vedxjQkDDP1mXWo6uco/wiki/Babbage - Babelsberg
https://www.ebooksdownloads.xyz/search/babelsberg - Ballerina
https://ballerina.io - Bash
https://www.gnu.org/software/bash - Bashforth
http://forthfreak.net/index.cgi?BashForth - BASIC
BASIC_Oct64 - Basic-256
http://basic256.org - BBN LISP
http://hopl.info/showlanguage.prx?exp=3347 - Bc
https://www.gnu.org/software/bc - BCPL
https://www.cl.cam.ac.uk/~mr10/BCPL - BeanShell
http://www.beanshell.org - Bear Food
No live site - Beatnik
http://cliffle.com/esoterica/beatnik - Befunge
https://esolangs.org/wiki/Befunge - Befunge-93
https://git.catseye.tc/Befunge-93 - Befunge-97
No live site - Befunge-98
No live site - Bertrand
https://github.com/bertrand-constraint/bertrand - BETA
https://beta.cs.au.dk - Beta-Juliet
https://esolangs.org/wiki/Beta-Juliet - Bidule
https://www.plogue.com/products/bidule - Bird–Meertens Formalism
https://pdfs.semanticscholar.org/60f6/1a50a2802feaa6acd302e41525c320a93bc1 - BLISS
https://www2.cs.arizona.edu/classes/cs520/spring06/bliss - Blockly
https://developers.google.com/blockly - Bluespec
http://wiki.bluespec.com - BlooP
http://cgibin.erols.com/ziring/cgi-bin/cep/cep.pl?_key=BLooP - BMDFM
http://bmdfm.com - BNR Prolog
http://hopl.info/showlanguage.prx?exp=1866&language=BNR%20Prolog - Boo
http://boo-lang.org - Boomerang
https://www.seas.upenn.edu/~harmony - BPML
https://www.ibm.com/support/knowledgecenter/en/SS3JSW_5.2.0/com.ibm.help.bpml.doc/SI_SterlingB2BIntegratorAndBPML - Brainfuck
http://www.aminet.net/package.php?package=dev%2Flang%2Fbrainfuck-2.lha - Bubble
https://bubble.is - BulletML
No live site - Burro
https://git.catseye.tc/Burro - C
http://www.open-std.org - C Shell
http://bxr.su/NetBSD/bin/csh - C++
https://isocpp.org - C- –
https://www.cs.tufts.edu/~nr/c– - C#
https://docs.microsoft.com/en-us/dotnet/csharp - Cω
https://www.microsoft.com/en-us/research/project/comega - C*
http://people.csail.mit.edu/bradley/cm5docs/CStarProgrammingGuide - C/AL (C/SIDE)
https://docs.microsoft.com/en-us/dynamics-nav/programming-in-c-al - Cabra
https://git.catseye.tc/Cabra - Caché
https://www.intersystems.com/products/cache - Caml
http://caml.inria.fr - Cayenne
http://www.kframework.org/images/5/5e/Cayenne - CDuce
https://www.cduce.org - Cecil
http://projectsweb.cs.washington.edu/research/projects/cecil/www/Internal/doc-cecil-lang/cecil-spec - Cerner CCL
http://infocenter.sybase.com/help/topic/com.sybase.infocenter.dc01612.0500/doc/pdf/ccl_programmers - Cesil
http://www.obelisk.me.uk/cesil - Céu
http://www.ceu-lang.org - Ceylon
https://ceylon-lang.org - CFEngine
https://cfengine.com/learn/what-is-cfengine - Cg
https://developer.nvidia.com/cg-toolkit - CGOL
http://www.cs.cmu.edu/afs/cs/project/ai-repository/ai/lang/lisp/code/syntax/cgol - Ch
https://www.softintegration.com - Chapel
https://chapel-lang.org - Charity
http://pll.cpsc.ucalgary.ca/charity - Charm
http://riscos-charm.yolasite.com - Chef
http://www.dangermouse.net/esoteric/chef - CHILL
http://psc.informatik.uni-jena.de/languages/chill - CHIP
http://hopl.murdoch.edu.au/showlanguage.prx?exp=1131&language=CHIP - CHIP V5
http://www.chip-v5.com - CHIP-8
https://storage.googleapis.com/wzukusers/user-34724694/documents/5c83d6a5aec8eZ0cT194/CHIP-8 - Chomski
No live site - ChucK
http://chuck.cs.princeton.edu - Ciao
https://ciao-lang.org - Cilk
http://cilk.mit.edu/programming - CiMPLE
No live site - Citrine
https://citrine-lang.org - CL
https://www.ibm.com/support/knowledgecenter/en/ssw_ibm_i_71/rbam6/clpro - CLACL
No live site - Claire
http://www.claire-language.com - Clarion
http://www.softvelocity.com - Clean
https://clean.cs.ru.nl/Clean - CLEO
http://hopl.info/showlanguage.prx?exp=318&language=CLEO - CLIPPER
https://www.thocp.net/software/languages/clipper - CLIPS
http://www.clipsrules.net - CLIST
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.ikjb300/clist - Clojure
https://clojure.org - CLP(R)
http://people.sju.edu/~jhodgson/clp - CLU
http://www.pmg.lcs.mit.edu/CLU - CMS Pipelines
http://vm.marist.edu/~pipeline - CMS-2
http://cgibin.erols.com/ziring/cgi-bin/cep/cep.pl?_key=CMS-2 - Co-array Fortran
http://caf.rice.edu - COBOL
https://en.wikibooks.org/wiki/Software_Engineers_Handbook/Language_Dictionary/COBOL - CobolScript
https://ieeexplore.ieee.org/document/882363 - Cobra
http://cobra-language.com - Coco/R
http://ssw.jku.at/Coco - CoffeeScript
https://coffeescript.org - ColorForth
https://colorforth.github.io - COMAL
http://www.josvisser.nl/opencomal - Combined Programming Language
http://www.ancientgeek.org.uk/CPL/CPL_Elementary_Programming_Manual - COMIT
http://www.mt-archive.info/MT-1958-Yngve - Common Intermediate Language
https://docs.microsoft.com/en-us/dotnet/standard/managed-code - Common Lisp
https://common-lisp.net - Common Workflow Language
https://www.commonwl.org - Compass
http://compass-style.org - Component Pascal
http://www.oberon.ch/blackbox - COMTRAN
http://bitsavers.org/pdf/ibm/7090/F28-8043_CommercialTranslatorGenInfMan_Ju60 - Concurrent Haskell
https://www.microsoft.com/en-us/research/wp-content/uploads/1996/01/concurrent-haskell - Concurrent ML
http://cml.cs.uchicago.edu - Concurrent Pascal
http://brinch-hansen.net/papers/1975a - Constraint Handling Rules
http://www.informatik.uni-ulm.de/pm/fileadmin/pm/home/fruehwirth/constraint-handling-rules - Cool
http://theory.stanford.edu/~aiken/software/cool/cool - Coq
https://coq.inria.fr - Coral 66
http://www.computinghistory.org.uk/downloads/32364 - Cornell University Programming Language
https://ecommons.cornell.edu/handle/1813/5881 - CorVision
http://www.cv2vb.com/CorVisionHistory - COW
https://bigzaphod.github.io/COW - COWSEL
No live site - Croc
https://github.com/JarrettBillingsley/Croc - Cryptol
https://cryptol.net - Crystal
https://crystal-lang.org - Csound
https://csound.com - CSP
http://www.usingcsp.com - Cuneiform
https://www.cuneiform-lang.org - Curl
http://www.curl.com - Curry
https://www-ps.informatik.uni-kiel.de/currywiki - CWIC
http://hopl.info/showlanguage.prx?exp=1940 - CyberQuery
https://www.cyberscience.com - Cybil
http://bitsavers.trailing-edge.com/pdf/cdc/Tom_Hunter_Scans/L461810 - CycL
https://www.cyc.com/documentation/ontologists-handbook/cyc-basics - Cyclone
http://cyclone.thelanguage.org - Cython
https://cython.org - D
https://dlang.org - Dart
https://dart.dev - Darwin
https://pdfs.semanticscholar.org/49cc/5a4f362b915ef0a98d642797e471fdd58181 - DASL
http://citeseerx.ist.psu.edu - DATABUS
https://www.dbcsoftware.com/dbcov - DataFlex
https://www.dataaccess.com - Datalog
http://www.ccs.neu.edu/home/ramsdell/tools/datalog/datalog - DATATRIEVE
http://h30266.www3.hpe.com/odl/axplp/databases/dtr073/AA_K080G_TE - Datomic
https://www.datomic.com - DAX
https://docs.microsoft.com/en-us/previous-versions/sql/sql-server-2012/gg399181(v=sql.110) - dBase
http://www.dbase.com - Dc
https://linux.die.net/man/1/dc - Delphi
http://www.delphibasics.info - Dependent ML
http://www.cs.bu.edu/~hwxi/DML - DIBOL
http://www.dibol.com - DinkC
https://dink.fandom.com/wiki/DinkC - DIPs
https://github.com/dlang/DIPs - DITA
http://docs.oasis-open.org/dita/v1.2/os/spec/DITA1.2-spec - DLV
http://www.dlvsystem.com - DLX
https://www.csee.umbc.edu/courses/undergraduate/411/spring96/dlx - DM
http://www.byond.com/docs/guide - Dog
https://esolangs.org/wiki/DOG - DOS Batch Language
https://www.dostips.com - Draco
http://www.graysage.com/cg/Compilers/index - DRAKON
http://drakon-editor.sourceforge.net - Dylan
https://opendylan.org - DYNAMO
http://hopl.murdoch.edu.au/showlanguage.prx?exp=61&language=DYNAMO - E
http://erights.org - Ease
no live site - Easytrieve
https://docops.ca.com/ca-easytrieve/11-6/en/getting-started - eC
http://ec-lang.org - ECL
https://hpccsystems.com - ECMAScript
http://www.ecma-international.org - Edinburgh IMP
http://history.dcs.ed.ac.uk/archive/scans/ercc_imp_manual/imp001 - EEL
http://www.eelang.org - EGL
https://www.ibm.com/developerworks/rational/library/04/r-3190/egl_overview2 - EICASLAB
https://www.eicaslab.com - Eiffel
https://www.eiffel.org - ELAN
http://www.cs.ru.nl/elan - ELI
http://fastarray.appspot.com - Elixir
https://elixir-lang.org - ELLA
https://cs.nyu.edu/courses/spring02/G22.3130-001/ella - Elm
https://elm-lang.org - Emacs Lisp
https://www.gnu.org/software/emacs - Embedded SQL
https://www.ibm.com/support/knowledgecenter/en/SSEPGG_11.1.0/com.ibm.db2.luw.apdv.embed.doc/doc/c0007014 - Emerald
http://www.emeraldprogramminglanguage.org - Emmental
https://git.catseye.tc/Emmental - Epigram
http://www.e-pig.org - EPL
https://www.servopack.de/support/zebra/EPL2_Manual - Erlang
https://www.erlang.org - Es
http://hawkwind.cs.toronto.edu:8001/mlists/es - Escher
http://users.cecs.anu.edu.au/~kee/Escher - ESPOL
http://bitsavers.org/pdf/burroughs/B5000_5500_5700/1032638_B5500_ESPOL_RefManOct67 - Esterel
http://www-sop.inria.fr/meije/esterel/esterel-eng - Etoys
http://www.squeakland.org - Euclid
https://www.microsoft.com/en-us/research/publication/report-programming-language-euclid - Euler
https://github.com/pkimpel/retro-b5500/tree/master/source/EULER - EuLisp
http://people.bath.ac.uk/masjap/EuLisp - Euphoria
http://www.rapideuphoria.com - EusLisp Robot Programming Language
https://euslisp-tutorial.readthedocs.io/en/latest - EXEC
https://golang.org/pkg/os/exec - EXEC 2
No live site - Executable UML
https://executableuml.org - EXSLT
https://www.xml.com/pub/a/2005/01/05/tr-xml - Extended ML
http://homepages.inf.ed.ac.uk/dts/eml - Extensible Application Markup Language (XAML)
https://docs.microsoft.com/en-us/xamarin/xamarin-forms/xaml - Ezhil
https://arxiv.org/pdf/0907.4960 - F
https://www.fortran.com/F/index - F#
https://fsharp.org - F*
https://www.fstar-lang.org - F-Logic
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.48.7149&rep=rep1&type=pdf - F-Script
https://github.com/pmougin/F-Script - Fabrik
http://sp.cmc.msu.ru/courses/smalltalk/fabrik/Fabrik - Factor
http://factorcode.org - Fantom
http://fantom-lang.org - FAUST
https://faust.grame.fr - FFP
http://www.cs.unc.edu/techreports/87-014 - Filetab
http://www.ncc.co.uk/software/downloads/FILETABDevelopersGuide2001 - Fjölnir
https://codelani.com/languages/fjolnir.html - FISH
https://github.com/tarunkolla/FISH-Language - FL
http://theory.stanford.edu/~aiken/publications/trs/RJ7100 - Flagship Compiler
http://www.fship.com/fsintr1 - Flavors
http://www.softwarepreservation.org - Flex
http://flex.apache.org - FLooP
http://cgibin.erols.com/ziring/cgi-bin/cep/cep.pl?_key=FLooP - Flora-2
http://flora.sourceforge.net - FLOW-MATIC
http://s3data.computerhistory.org/brochures/univac.flowmatic.1957.102646140 - Flowgorithm
http://www.flowgorithm.org - FOCAL
http://homepage.divms.uiowa.edu/~jones/pdp8/focal - FOCUS
http://ecl.informationbuilders.com/focus/index - FOIL
No live site - FORMAC
http://hopl.murdoch.edu.au/showlanguage.prx?exp=158&language=FORMAC - Forte 4GL
https://docs.oracle.com/cd/E19957-01/806-6674-01/806-6674-01 - Forth
https://www.forth.com/forth - Fourth-Generation Programming Language
No live site - Fortran
https://www.ibm.com/ibm/history/ibm100/us/en/icons/fortran - Fortress
https://github.com/stokito/fortress-lang - FP
http://www.math.bas.bg/bantchev/place/fp - FRACTRAN
https://esolangs.org/wiki/Fractran - Franz Lisp
http://www.softwarepreservation.org/projects/LISP/maclisp_family/#Franz_Lisp - Free Pascal
https://www.freepascal.org - FreeMat
http://freemat.sourceforge.net - Frenetic
http://frenetic-lang.org - Fril
https://sorrell.github.io/files/Fril - Funge-98
https://git.catseye.tc/Funge-98 - FuzzyCLIPS
http://alumni.cs.ucr.edu/~vladimir/cs171/quickfuzzy - FXML
https://docs.oracle.com/javafx/2/api/javafx/fxml - FxPlug
https://developer.apple.com/documentation/fxplug - G-code
http://carlsonmfg.com/cnc-g-code-m-code-programming - Gambas
http://gambas.sourceforge.net - Gambit Scheme
http://gambitscheme.org - Game Definition Language
http://games.stanford.edu/games/gdl - Game Description Language
http://logic.stanford.edu/classes/cs227/2013/readings/gdl - GameMaker
https://docs.yoyogames.com/source/dadiospice/002_reference/001_gml%20language%20overview - GameMonkey Script
http://gmscript.com - GAMS
https://www.gams.com - GAP
https://www.gap-system.org - GAUSS
https://www.aptech.com - GDL
https://github.com/gnudatalanguage/gdl - GDScript
https://docs.godotengine.org/en/3.1/getting_started/step_by_step/scripting - GeneXus
https://www.genexus.com - Genie
https://wiki.gnome.org/Projects/Genie - GEORGE
https://www.george.andante.no - Gforth
https://www.gnu.org/software/gforth - GLSL
https://en.wikibooks.org/wiki/GLSL_Programming/Introduction - GNU Bison
https://www.gnu.org/software/bison - GNU Flex
https://github.com/westes/flex - GNU Octave
https://www.gnu.org/software/octave - GNU Prolog
http://gprolog.org - Go
https://golang.org - GOAL Agent Programming Language
https://goalapl.atlassian.net/wiki/spaces/GOAL - Gödel
http://www.scs.leeds.ac.uk/hill/GOEDEL/expgoedel - Godot Shading Language
https://docs.godotengine.org/en/3.0/tutorials/shading/shading_language - Gofer
http://web.cecs.pdx.edu/~mpj/goferarc - Golo
https://golo-lang.org - Google Apps Script
https://www.google.com/script - Gosu
https://gosu-lang.github.io - GOTRAN
http://hopl.info/showlanguage.prx?exp=3074 - GPSS
https://informs-sim.org/wsc86papers/1986_0011 - Grammatical Framework
http://www.grammaticalframework.org - GraNoLa/M
https://git.catseye.tc/GraNoLa-M - GRASS
http://www.blue.sky.or.jp/grass - Grasshopper
https://www.grasshopper3d.com - Gremlin
https://tinkerpop.apache.org/gremlin - Groovy
http://www.groovy-lang.org - GtkBuilder
https://developer.gnome.org/gtk3/stable/GtkBuilder - Guile
https://www.gnu.org/software/guile - Hack
https://hacklang.org - HAGGIS
http://www.bannermanhigh.glasgow.sch.uk/Websites/SchSecBannerman/UserFiles/file/Departments/Computing/Haggis - HAL/S
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790006637 - Halide
https://halide-lang.org - Hamilton C Shell
https://www.hamiltonlabs.com/Cshell - Handel-C
https://www.mentor.com/products/fpga/handel-c - Harbour
https://harbour.github.io - Hartmann Pipelines
http://vm.marist.edu/~pipeline - Haskell
https://www.haskell.org - Haxe
https://haxe.org - Hermes
http://citeseerx.ist.psu.edu - Hev
https://git.catseye.tc/Hev - HiAsm
http://www.hiasm.com - High Level Assembly
http://plantation-productions.com/Webster - HiLog
https://www.researchgate.net/publication/222491414_HILOG - HLSL
https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-pguide - HolyC
https://templeos.org - Hop
http://hop.inria.fr/home/index - Hope
http://www.hopemachine.co.uk - Hopscotch
https://www.gethopscotch.com - Hot Soup Processor
http://hsp.tv - Hume
http://www.macs.hw.ac.uk/~greg/hume - Humus
http://www.dalnefre.com/wp/humus - HUNTER
https://git.catseye.tc/HUNTER - Hy
http://docs.hylang.org - HyperNext
http://www.tigabyte.com/hnfiles/about - HyperTalk
http://www.memoryhole.net/~kyle/newwebsite/Curriculum_Vitae_files/hypertalk - IBM Basic Assembly Language
http://bitsavers.informatik.uni-stuttgart.de/pdf/ibm/360/asm/SC20-1646-6_int360asm_Aug70 - IBM HAScript
https://www.ibm.com/support/knowledgecenter/en/SSS9FA_13.0.0/com.ibm.hod.doc/doc/macro/macro - IBM Informix-4GL
https://www.ibm.com/support/knowledgecenter/fr/SSGU8G_11.70.0/com.ibm.quicks_4gl.doc/4gl_qsg_en - ICI
http://atrn.org/ici - Icon
https://www2.cs.arizona.edu/icon - Id
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.18.4920 - IDL
https://www.harrisgeospatial.com/Software-Technology/IDL - Idris
https://www.idris-lang.org - Illberon
No live site - ILLGOL
https://git.catseye.tc/Illgol-Grand-Mal - Illgola-2
No live site - Illumination Software Creator
http://lunduke.com/?page_id=3454 - ILNumerics
https://ilnumerics.net - Impulse C
No live site - Inform 6
https://www.inform-fiction.org - Inform 7
http://inform7.com - INTERCAL
http://www.catb.org/~esr/intercal - Interlisp
http://www.softwarepreservation.org/projects/LISP/interlisp - Io
https://iolanguage.org - Iota and Jot
http://semarch.linguistics.fas.nyu.edu/barker/Iota - Iphigeneia
https://git.catseye.tc/Iphigeneia - IPL-v
https://www.rand.org/content/dam/rand/pubs/papers/2008/P1929 - ISLISP
http://islisp.info - ISWIM
http://hopl.info/showlanguage.prx?exp=261 - J
https://www.jsoftware.com - J#
https://msdn.microsoft.com/en-us/vstudio/bb188593 - J++
http://msdn.microsoft.com/vjsharp/productinfo/visualj - JADE
https://www.jadeworld.com - JAL
http://justanotherlanguage.org - Janus
http://tetsuo.jp/ref/janus - JASS
http://jass.sourceforge.net - Java
https://www.oracle.com/java - JavaCC
https://javacc.org - JavaFX Script
https://www.oracle.com/technetwork/java/getting-started-with-javafx - JavaScript
https://developer.mozilla.org/en-US/docs/Web/JavaScript - JEAN
No live site - Jess
https://jessrules.com - JCL
https://www.ibm.com/support/knowledgecenter/zosbasics/com.ibm.zos.zjcl/zjclc_basicjclconcepts - JHDL
http://www.jhdl.org - Join Java
No live site - JOSS
https://www.rand.org/content/dam/rand/pubs/research_memoranda/2006/RM5058 - Joule
http://www.erights.org/history/joule - Jovial
http://cs.ecs.baylor.edu/~maurer/SieveE/jovial - Joy
https://www.latrobe.edu.au/humanities/research/research-projects/past-projects/joy-programming-language - JS++
https://www.onux.com/jspp - JScript
https://docs.microsoft.com - JScript .NET
https://docs.microsoft.com - JSFuck
http://www.jsfuck.com - JSONiq
http://jsoniq.org - Julia
https://julialang.org - Jupiter Ace
http://k1.spdns.de/Vintage/Sinclair/80/Jupiter - Jython
https://www.jython.org - K
https://kx.com - Kaleidoscope
https://github.com/bencochran/Kaleidoscope - Kangaroo
https://esolangs.org/wiki/Kangaroo - Karel
https://code.google.com/archive/p/rbstuff/wikis/rbKarelOverview.wiki - Kent Recursive Calculator
http://krc-lang.org - KIF
http://logic.stanford.edu/kif/dpans - Kixtart
http://www.kixtart.org - KL0
http://foldoc.org/KL0 - KL1
http://hopl.info/showlanguage.prx?exp=1562 - Klerer-May System
http://hopl.info/showlanguage.prx?exp=290 - KnowledgeMan
No live site - Kodu
https://www.microsoft.com/en-us/research/project/kodu - Kojo
http://www.kogics.net/kojo - Korn Shell (ksh)
http://www.bolthole.com/solaris/ksh - Kotlin
https://kotlinlang.org - KRL/KUKA
http://i.stanford.edu/pub/cstr/reports/cs/tr/76/581/CS-TR-76-581 - KRYPTON
No live site - KTurtle
https://edu.kde.org/kturtle - Kv
https://kivy.org/doc/stable/guide/lang - Kyma
https://kyma.symbolicsound.com - L33t
http://electrod.ifreepages.com/l33tspec - LabVIEW
https://www.ni.com/es-es/shop/labview - Ladder Logic
https://www.plcacademy.com/ladder-logic-tutorial - Larabee
https://git.catseye.tc/Larabee - Lasso
http://www.lassosoft.com - LaTeX
https://www.latex-project.org - Lava
http://lavape.sourceforge.net - Lazy ML
https://ipfs.io/ipfs/QmXoypizjW3WknFiJnKLwHCnL72vedxjQkDDP1mXWo6uco/wiki/Lazy_ML - Legoscript
https://csprojecthelp.xyz/legoscript-programming - Lexico
No live site - LFE
http://lfe.io - LIL
http://www.ultimate.com/phil/lil - LilyPond
http://lilypond.org - Limbo
http://www.vitanuova.com/inferno/limbo - Limnor
http://www.limnor.com/VPL - LINC 4GL
No live site - Lingo
https://www.lindo.com/index.php/products/lingo-and-optimization-modeling - Linotte
http://langagelinotte.free.fr/wordpress - LINQ
https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/linq - LIS
No live site - LISA
https://www.ice.rwth-aachen.de/research/tools-projects/closed-projects/lisa - Lisp
http://history.siam.org/sup/Fox_1960_LISP - LISP 2
http://www.softwarepreservation.org/projects/LISP/lisp2/AbrahamsEtAl-LISP2 - Lisp Machine Lisp
https://hanshuebner.github.io/lmman - Lispkit Lisp
http://www.cs.ox.ac.uk/files/3299/PRG32%20vol%201 | http://www.cs.ox.ac.uk/files/3300/PRG32%20vol%202 - Lite-C
http://www.3dgamestudio.de/litec - Lithe
http://lithe.eecs.berkeley.edu - Little
http://www.little-lang.org - Little b
No live site - Little Man Computer
https://teachcomputerscience.com/lmc - Little Smalltalk
http://www.littlesmalltalk.org - LiveCode
https://livecode.com - LiveScript
http://livescript.net - LLL
https://lll-docs.readthedocs.io/en/latest/lll_introduction - Logo
https://el.media.mit.edu/logo-foundation - Logtalk
https://logtalk.org - Lola
https://inf.ethz.ch/personal/wirth/Lola/Lola2 - LOLCODE
http://www.lolcode.org - LOOM
https://www.isi.edu/isd/LOOM - LotusScript
https://www.ibm.com/support/knowledgecenter/en/SSVRGU_9.0.1/basic/LSAZ_WHAT_IS_LOTUSSCRIPT_3179_OVERVIEW - Lout
http://savannah.nongnu.org/projects/lout - LPC
http://lpmuds.net - LSE
No live site - LSL
http://wiki.secondlife.com/wiki/Linden_Scripting_Language - Lua
https://www.lua.org - Lucid
http://www.cse.unsw.edu.au/~plaice/archive/WWW/1985/B-AP85-LucidDataflow - Lush
https://en.wikibooks.org/wiki/Lush - Lustre
http://www-verimag.imag.fr/Lustre-V6 - LYaPAS
http://hopl.info/showlanguage.prx?exp=430 - Lynx
https://www.cs.rochester.edu/u/scott/papers/1991_CompLang_Lynx - LZX
https://www.openlaszlo.org - M#
http://www.msharp.co.uk/Home - M-Code
http://carlsonmfg.com/cnc-g-code-m-code-programming - M4
https://www.gnu.org/software/m4/m4 - M2001
http://www.hopl.info/showlanguage.prx?exp=7622&language=M2001 - Macintosh Common Lisp
http://www.digitool.com - Maclisp
http://www.softwarepreservation.org/projects/LISP/maclisp_family - MacroML
https://www.cs.indiana.edu/~sabry/papers/macroml - Maentwrog
https://git.catseye.tc/Maentwrog - Magik
https://www.mdt.net/pe/help/index.jsp?topic=%2Fpl.com.astec.mdt.help%2Fhtml%2Fintro%2Foverview - Magma
http://magma.maths.usyd.edu.au/magma - Malbolge
https://esolangs.org/wiki/malbolge - Mama
https://www.eytam.com/mama - Máni
https://mani-language.github.io - Maple
https://www.maplesoft.com/products/maple - MAPPER
http://vipclubmn.org/Articles/MAPPERHistoryPresentation - MARK IV
http://hopl.info/showlanguage.prx?exp=3117 - Mary
No live site - Mascarpone
https://git.catseye.tc/Mascarpone - MATH-MATIC
http://hopl.info/showlanguage.prx?exp=435 - MathCAD
https://www.engr.colostate.edu/ECE562/mathcad - Mathematica
https://www.wolfram.com/mathematica - Matita
http://matita.cs.unibo.it - MATLAB
https://www.mathworks.com/products/matlab - Maude System
http://maude.cs.illinois.edu/w/index.php/The_Maude_System - Max
https://cycling74.com/products/max - Maxima
http://maxima.sourceforge.net - MAXScript
https://marketplace.visualstudio.com/items?itemName=atelierbump.language-maxscript - MDL
http://ifarchive.org/if-archive/programming/mdl/manuals/MDL_Programming_Language - MDPN
https://git.catseye.tc/Specs-on-Spec - MediaWiki Markup Language
https://www.mediawiki.org/wiki/Markup_spec - MEL
https://www.autodesk.com/autodesk-university/class/AutodeskR-MayaR-Scripting-MEL - Mercury
https://www.mercurylang.org - Mesa
http://www.softwarepreservation.org/projects/lang/mesa - META II
http://www.ibm-1401.info/Meta-II-schorre - Metafont
http://www.tex.ac.uk/ctan/systems/knuth/dist/mf/mf.web - MetaPost
http://tug.org/metapost - Metal Shading Language
https://developer.apple.com/metal/Metal-Shading-Language-Specification - MetaOCaml
http://okmij.org/ftp/ML/metaocaml-files - MexScript
http://multiex.xentax.com - MHEG-5
http://www.mheg.org/users/mheg/index - Microcode
No live site - MicroScript
https://esolangs.org/wiki/Microscript - Microsoft Visual Programming Language
https://msdn.microsoft.com/en-us/library/bb964572 - MIIS
No live site - Milk
No live site - MIMIC
http://hopl.info/showlanguage.prx?exp=294 - MiniKanren
http://minikanren.org - MiniZinc
https://www.minizinc.org - MIPS
https://sites.cs.ucsb.edu/~franklin/64/lectures/mipsassemblytutorial - Mirah
http://www.mirah.org - Miranda
http://miranda.org.uk - mIRC Scripting Language
https://www.mirc.com - MIVA Script
http://www.mivascript.com - ML
http://www.cs.cmu.edu/~rwh/isml - ML/I
http://www.ml1.org.uk - MLisp
http://www.softwarepreservation.org/projects/LISP/stanford/Smith-MLISP - MLton
http://www.mlton.org - Modelica
https://www.modelica.org - Modula
https://www.research-collection.ethz.ch/handle/20.500.11850/68669 - Modula-2
https://www.modula2.org - Modula-3
http://www.modula3.org - Mohol
No live site - MOO
http://cmc.uib.no/moo/docs/shorter/quick-prog-ref - Mortran
https://www.slac.stanford.edu/exp/e871/documentation/offline/mortran2 - MOS Technology
http://archive.6502.org/books/mcs6500_family_programming_manual - Motorola 6800
https://www.inf.pucrs.br/~calazans/undergrad/orgcomp_EC/mat_microproc/MC6800-AssemblyLProg - Motorola 68000
http://www.atarimania.com/documents/Asm_Lang_Prog_68K_Family - Mouse
http://users.encs.concordia.ca/~grogono/Mouse/mouse - MPD
https://www2.cs.arizona.edu/mpd/language - MSL
http://www.msldev.com - MST Workshop
https://download.cnet.com/MST-Workshop/3000-2212_4-10824886 - MultiLisp
http://pages.cs.wisc.edu/~fischer/cs538.f04/multilisp - MuPAD
https://www.mathworks.com/help/symbolic/mupad-language-fundamentals - MUMPS
http://71.174.62.16/MDC - Mutan
https://github.com/obscuren/mutan - MXML
https://www.adobe.com/devnet/flex/articles/fcf_mxml_actionscript - MyHDL
http://www.myhdl.org - N-DCNC
https://github.com/catseye/N-DCNC - Napier88
https://archive.cs.st-andrews.ac.uk/papers/download/MBC+96b - NASM
https://www.nasm.us - NATURAL
No live site - ND4J
https://deeplearning4j.org/docs/latest/nd4j-overview - ND4S
https://github.com/deeplearning4j/nd4s - Neko
https://nekovm.org - Nemerle
http://nemerle.org - NEPO
https://www.roberta-home.de - NESL
https://www.cs.cmu.edu/~scandal/nesl - Net.Data
https://www-01.ibm.com/support/docview.wss?uid=isg3T1026871 - NetLogo
https://ccl.northwestern.edu/netlogo/docs/programming - NetRexx
http://netrexx.org - NewLISP
http://www.newlisp.org - NEWP
https://public.support.unisys.com/aseries/docs/clearpath-mcp-17.0/pdf/86002003-407 - Newspeak
https://newspeaklanguage.org - NewtonScript
http://newtonscript.org - Next Byte Codes
http://bricxcc.sourceforge.net/nbc - Nial
https://github.com/danlm/qnial7 - Nice
http://nice.sourceforge.net - Nickle
https://nickle.org - NIL
No live site - Nim
https://nim-lang.org - Nitrous Shading Language
http://oxidegames.com/products/nitrous-2 - Node-RED
https://nodered.org - Nomad Software
http://archive.computerhistory.org/resources/text/Oral_History/RAMIS_and_NOMAD - Not eXactly C
http://bricxcc.sourceforge.net/nbc - Not Quite C
http://bricxcc.sourceforge.net/nqc - NPL
http://npl-lang.sourceforge.net - NSIS
https://nsis.sourceforge.io/Docs/Chapter1 - Nu
https://programming-nu.github.io - NumPy
https://numpy.org - NWScript
https://nwnlexicon.com - NXT-G
https://nostarch.com/download/nxt-g_ch2 - O-Matrix
http://www.aertia.com - o:XML
https://www.xml.com/pub/a/2004/07/21/oxml - Oak
http://www.gutenberg.cc/articles/Oak - Oberon
http://www.projectoberon.com - OBJ
http://cseweb.ucsd.edu/~goguen/pps/iobj - OBJ2
https://experts.illinois.edu/en/publications/principles-of-obj2 - Object Lisp
No live site - Object Pascal
https://castle-engine.io/modern_pascal_introduction - Object REXX
http://www.oorexx.org - Objective-C
https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC - Objective-J
http://www.cappuccino.dev/learn/objective-j - ObjectLOGO
http://www.digitool.com/ol-specs - Objlog
http://hopl.info/showlanguage.prx?exp=1343&name=Objlog - ObjVlisp
No live site - Obliq
https://curlie.org/Computers/Programming/Languages/Obliq - OCaml
https://ocaml.org - Occam
http://www.wotug.org/occam - Occam-π
https://www.cs.kent.ac.uk - OISC
https://esolangs.org/wiki/OISC - OmniMark
http://www.stilo.com/omnimark - Onyx
http://www.canonware.com/onyx - Opa
http://opalang.org - Opal
https://www.cs.oberlin.edu/~jwalker/opal - Open Shading Language
http://opensource.imageworks.com/?p=osl - Open Sores Illgol#
No live site - Open-URQ
https://sourceforge.net/projects/urq - OpenCL
https://www.khronos.org/opencl - OpenGL
https://www.opengl.org - OpenEdge Advanced Business Language
https://www.progress.com/openedge - OpenLisp
http://christian.jullien.free.fr - OpenMusic
http://repmus.ircam.fr/openmusic/home - OpenROAD
http://www.naiua.org/openroad/openroad_faq - OpenVera
http://asicguru.com/Vera-Tutorial - OpenWDL
http://www.openwdl.org - OPL
http://opl-dev.sourceforge - OPS5
http://www.pcai.com/web/ai_info/pcai_ops - OptimJ
https://www.slideshare.net/PatrickViry/the-optimj-manual - Opus-2
https://git.catseye.tc/Specs-on-Spec - Orc
https://orc.csres.utexas.edu - Oriel
http://learning-internet-technology.pksm.info/IT/en/464-336/Oriel - Orwell
https://homepages.inf.ed.ac.uk/wadler/papers/orwell - OWL
https://www.w3.org/TR/owl-ref - Oxygene
https://www.elementscompiler.com/elements/oxygene - Oz
http://mozart.github.io - P
https://github.com/p-org/P - P”
https://jamesmccaffrey.wordpress.com/2018/09/05/the-p-programming-language - P4
https://p4.org - PAL
http://www.softwarepreservation.org/projects/lang/PAL - PALASM
http://orion.ipt.pt/~fmbarros/ed/PALASM - Pan
https://wiki.nikhef.nl/grid/images/8/8a/Pan-language-manual - ParaSail
http://parasail-lang.org - PARI/GP
https://pari.math.u-bordeaux.fr - Parlog
http://www.parlog.com/en/parlog - Pascal
http://pascal-central.com/ppl - Pascal Script
https://www.remobjects.com/ps - PC-LISP
https://github.com/blakemcbride/PC-LISP - PCASTL
http://www.pcosmos.ca/pcastl - PDL
https://www.cfg.com/pdl81 - PEARL
https://www.real-time.de/misc/PEARL90-LanguageReport-V2.2-GI-1998-eng - PeopleCode
https://docs.oracle.com/cd/E57990_01/pt853pbh2/eng/pt/tapd/task_UsingthePeopleCodeandOtherProgrammingLanguageEditors - Perl
http://pdl.perl.org - Perl 6
https://perl6.org - Pforth
http://www.softsynth.com/pforth - Pharo
https://pharo.org - PHP
https://en.wikibooks.org/wiki/PHP_Programming - Picat
http://www.csplib.org/Languages/Picat - Pico
http://pico.vub.ac.be - PicoLisp
https://picolisp.com - Pict
https://www.cis.upenn.edu/~bcpierce/papers/pict/Html/Pict - Piet
http://www.dangermouse.net/esoteric/piet - Pig Latin
https://pig.apache.org - Pike
https://pike.lysator.liu.se - Pikt
https://www.usenix.org/legacy/publications/library/proceedings/lisa2000/full_papers/osterlund/osterlund_html/index - PILOT
http://rpilot.sourceforge.net/pilot - Pizza
http://pizzacompiler.sourceforge.net - PL-6
http://www.bitsavers.org/pdf/honeywell/cp-6/XP03-00_introToPL-6_Jun88 - PL-11
http://cds.cern.ch/record/880468/files/CERN-74-24 - PL/0
https://github.com/amibiz/pl0 - PL/8
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.453.5277 - PL/B
https://www.sunbelt-plb.com/show.php?Page=aboutplb - PL/C
http://hopl.info/showlanguage.prx?exp=650 - PL/I
https://en.wikibooks.org/wiki/Software_Engineers_Handbook/Language_Dictionary/PLI - PL/M
http://bitsavers.org/components/intel/MCS8/MCS-8_A_Guide_to_PLM_Programming_Sep73 - PL/P
No live site - PL/S
http://hopl.info/showlanguage.prx?exp=592 - PL/SQL
https://searchoracle.techtarget.com/definition/PL/SQL - PL360
http://web.eah-jena.de/~kleine/history/languages/pl360man - PLANC
https://csprojecthelp.xyz/planc-programming - Plankalkül
http://delivery.acm.org/10.1145/370000/361515/p678-bauer - Planner
https://wikivisually.com/wiki/Planner - PlayStation Shader Language
http://twvideo01.ubm-us.net/o1/vault/gdceurope2013/Presentations/825424RichardStenson - PLEX
http://cdc.ioc.ee/appsem04/webproc/short/erikson-lisper - PLEXIL
http://plexil.sourceforge.net - Plus
https://docs.google.com/file/d/0B4t_NX-QeWDYYlYydkNuQjFTU3k0dHg5VUpWQXJOdw - Polymorphic Programming Language
https://dl.acm.org/citation.cfm?id=1115858.1115864&coll=GUIDE&dl=GUIDE - POP-2
http://bitsavers.informatik.uni-stuttgart.de/pdf/univOfEdinburgh/POP-2_Papers_1968 - POP-11
http://www.cs.bham.ac.uk/research/projects/poplog/primer - Poplog
http://www.cs.bham.ac.uk/research/projects/poplog/freepoplog - Portable Standard Lisp
http://user.ceng.metu.edu.tr/~ucoluk/research/lisp - PostScript
https://www-cdf.fnal.gov/offline/PostScript/BLUEBOOK - PottersWheel
https://potterswheel.de/Pages - POV-Ray Scene Description Language
https://www.povray.org/documentation/view/3.6.1/224 - PowerHouse
https://www.teamblue.unicomsi.com/products/powerhouse-4gl - PQL
http://processquerying.com/pql - Pro*C
http://infolab.stanford.edu/%7Eullman/fcdb/oracle/or-proc - Processing
http://processingjs.org - Progress 4GL
https://www.progress.com/services/education/openedge/4gl-essentials - Progol
http://www.di.uniba.it/~malerba/courses/bcdm/2011-12/Progol - Prograph
http://wiki.c2.com/?PrographLanguage - Programming Computable Functions
http://www.cs.bham.ac.uk/~mhe/papers/RNC3 - Programming with Big Data in R
https://pbdr.org - PROIV
https://proiv.com - ΛProlog
http://www.lix.polytechnique.fr/Labo/Dale.Miller/lProlog - Prolog++
http://www.lpa.co.uk/ppp_det.htm - Prolog32
http://www.virtual-science.co.uk/prolog32 - PROMAL
https://www.lyonlabs.org/commodore/onrequest/PROMAL - Promela
https://cava.in.tum.de/templates/publications/promela - PROSE Modeling Language
No live site - PROTEL
No live site - Prova
http://www.rewerse.net/publications/download/REWERSE-RP-2006-057 - ProvideX
https://home.pvxplus.com - Ptolemy Project
https://ptolemy.berkeley.edu - PTQL
No live site - Pure
https://agraef.github.io/pure-lang - Pure Data
https://puredata.info - PureBasic
https://www.purebasic.com - PureScript
http://www.purescript.org - PV-Wave
https://www.roguewave.com/products-services/pv-wave - PWCT
http://doublesvsoop.sourceforge.net - Python
https://www.python.org - .QL
https://semmle.com/ql - Q
http://kx.com - Q#
https://docs.microsoft.com/en-us/quantum/language/?view=qsharp-preview - QML
https://doc.qt.io/qt-5/qmlapplications - Qalb
http://nas.sr/قلب - Qt Script
https://doc.qt.io/qt-5/qtscript-index - QuakeC
http://www.cataboligne.org/extra/qcmanual - Quantum Programming Language
https://www.quantiki.org/wiki/quantum-programming-language - Quartz Composer
https://developer.apple.com/library/archive/documentation/GraphicsImaging/Conceptual/QuartzComposerUserGuide - Quylthulg
https://catseye.tc/installation/Quylthulg - R
https://www.r-project.org - R++
No live site - R:BASE
https://www.rbase.com - Racket
https://racket-lang.org - RAMIS
No live site - RAPID
http://www.oamk.fi/~eeroko/Opetus/Tuotantoautomaatio/Robotiikka/Introduction_to_RAPID - Rapira
http://hopl.info/showlanguage.prx?exp=5224&language=Rapira - Raptor
https://raptor.martincarlisle.com - Ratfiv
No live site - Ratfor
http://sepwww.stanford.edu/doku.php?id=sep:software:ratfor - Rc
http://doc.cat-v.org/plan_9/4th_edition/papers/rc - RDQL
https://www.w3.org/TandS/QL/QL98/pp/rdfquery - Reaktor
https://www.native-instruments.com/en/products/komplete/synths/reaktor-6 - Reason
https://reasonml.github.io - Rebeca Modeling Language
http://rebeca-lang.org - REBOL
http://www.rebol.com - Red
https://www.red-lang.org - Redcode
https://esolangs.org/wiki/Redcode - REFAL
http://www.refal.net - RenderMan Shading Language
https://renderman.pixar.com/resources/RenderMan_20/shadingLanguage - Renjin
https://www.renjin.org - REXX
https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.ikjb300/xrexx - Rlab
http://rlab.sourceforge.net - RoboBlockly
https://www.roboblockly.org/about - ROOP
https://enacademic.com/dic.nsf/enwiki/466718 - RPG
https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_73/rzasc/sc092507 - RPL
https://www.hpcalc.org/details/7114 - RTL/2
http://www.theoengel.nl/P800/RTL2/docs/RTL2_introduction - Ruby
https://www.ruby-lang.org - Rulelog
No live site - RuneScript
https://runescape.wiki/w/RuneScript - Rust
https://www.rust-lang.org - S
http://statweb.stanford.edu/~jmc4/papers/96.7.ps - S-Lang
https://www.jedsoft.org/slang/doc/pdf/slang - S-PLUS
https://dss.princeton.edu/online_help/stats_packages/splus/splus_intro - S/SL
http://dbpedia.org/page/S/SL_programming_language - S2
https://www.livejournal.com/doc/s2 - S3
http://adv-r.had.co.nz/S3 - SA-C
http://www.cs.colostate.edu - SabreTalk
http://teampli.net/Sabretalk_Reference_Guide - SAC
http://www.sac-home.org - SAIL
http://pdp-10.trailing-edge.com/decuslib20-01/01/decus/20-0002/sail.man - Sally
https://git.catseye.tc/Sally - SAM76
http://hopl.info/showlanguage.prx?exp=781&language=SAM76 - SAS
http://animsci.agrenv.mcgill.ca/StatisticalMethodsII/sas/index - SASL
http://www.eis.mdx.ac.uk/staffpages/dat/saslman - Sather
http://www1.icsi.berkeley.edu/~sather - Sawzall
https://ai.google/research/pubs/pub61 - Sbeezg
https://git.catseye.tc/Sbeezg - SBL
http://safphire.com/sites/default/files/manuals/SBL170 - Scala
https://scala-lang.org - Scheme
https://www.scheme.com - Scilab
https://www.scilab.org - Scratch
https://scratch.mit.edu - ScratchJr
https://www.scratchjr.org - Script.NET
No live site - Secure Operations Language
https://www.nrl.navy.mil/itd/chacs/bharadwaj-sol-verifiable-synchronous-language-reactive-systems - Sed
https://www.gnu.org/software/sed - Seed7
http://seed7.sourceforge.net - Self
http://www.selflanguage.org - SenseTalk
http://sensetalk.com - SequenceL
https://everything.explained.today/SequenceL - Sequential Function Chart
https://www.sciencedirect.com/topics/computer-science/sequential-function-chart - Serpent
https://www.cs.cmu.edu/~music/serpent/doc/serpent - SETL
https://setl.org/setl - Sh
https://www.shellscript.sh - Shakespeare Programming Language
http://shakespearelang.sourceforge.net - SheerPower4GL
http://www.sp4gl.com - Shelta
https://git.catseye.tc/Shelta - ShEx
https://github.com/shexSpec/shex/wiki/ShEx - Shining Rock Shading Language
http://www.shiningrocksoftware.com/2015-03-30-shading-languages - SICStus Prolog
https://sicstus.sics.se/sicstus/docs/latest/html/sicstus - SIGNAL
http://polychrony.inria.fr - SiMPLE
http://www.simplecodeworks.com/New/whatissimple - SIMPOL
https://www.simpol.com - SIMSCRIPT
https://www.rand.org/pubs/research_memoranda/RM3310 - Simula
http://www.simula67.info - Simulink
https://www.mathworks.com/products/simulink - SISAL
https://sourceforge.net/projects/sisal - SKILL
http://pwp.gatech.edu/wp-content/uploads/sites/367/2016/03/Intro_to_skill_prog - SLIP
http://hopl.info/showlanguage.prx?exp=192 - Small Basic
https://smallbasic-publicwebsite.azurewebsites.net - Smalltalk
https://en.wikibooks.org/wiki/Smalltalk_Programming - SMITH
https://git.catseye.tc/SMITH - SMX
http://media.oem.se/Archive/FilesArchive/13414 - Snap!
https://snap.berkeley.edu - Snowball
https://snowballstem.org - Solidity
https://solidity.readthedocs.io/en/v0.5.10 - SOPHAEROS
No live site - SP-Forth
http://spf.sourceforge.net - SP/k
http://cs.carleton.edu/cs_comps/1213/pylearn/papers/p301-holt - SPARK
https://www.adacore.com - SPARQL
https://www.w3.org/TR/sparql11-query - Speakeasy
No live site - Speedcode
http://www.softwarepreservation.org/projects/FORTRAN/paper/p4-backus - Spice Lisp
https://www.cons.org/cmucl - SPIN
http://learn.parallax.com/educators/teach/spin-programming-multicore-propeller - SPITBOL
http://snobol4.com - SPS
http://bitsavers.org/pdf/ibm/140x/C24-1480-0_1401symbPgmSys - SQL
https://en.wikibooks.org/wiki/Structured_Query_Language - SQL Syntax
https://www.dofactory.com/sql/syntax - SQLf
No live site - SQR
https://docs.oracle.com/cd/E41633_01/pt853pbh1/eng/pt/tsql/concept_TheSQRLanguage-c07b18 - Squeak
https://squeak.org - Squirrel
http://www.squirrel-lang.org - Squishy2K
https://git.catseye.tc/Squishy2K - SR
https://www2.cs.arizona.edu/sr - Stagecast Creator
http://acypher.com/creator - Standard ML
http://sml-family.org - Standard ML of New Jersey
https://www.smlnj.org - Starlogo Nova
https://www.slnova.org - Stata
https://www.stata.com/manuals13/u18 - Stateflow
https://www.mathworks.com/help/stateflow - STELLA
https://www.iseesystems.com - Stencyl
http://www.stencyl.com - STOICAL
http://stoical.sourceforge.net/summary - Strand
https://www.osti.gov/biblio/5395744 - StreamSQL
http://docs.streambase.com/sb77/index.jsp?topic=/com.streambase.sb.ide.help/data/html/streamsql/ssql-intro - Strelnokoff
https://git.catseye.tc/Strelnokoff - Strongtalk
http://strongtalk.org - Subtext
http://www.subtext-lang.org - SuperCollider
https://supercollider.github.io - SuperPro C
http://bricxcc.sourceforge.net/nbc - SuperTalk
https://www.supercard.us - SWI-Prolog
https://www.swi-prolog.org - Swift
https://swift.org - SYMPL
http://www.bitsavers.org/pdf/cdc/cyber/lang/sympl/60499800B_SYMPL_Version_1_Users_Guide_Apr78 - Synchronized Multimedia Integration Language
https://www.w3.org/AudioVideo - Sysquake
https://www.calerga.com/products/Sysquake - SystemBuilder/SB+
https://www.rocketsoftware.com/products/rocket-unidata-0/rocket-systembuilder-extensible-architecture-sbxa - SystemC
https://accellera.org/community/systemc - SystemVerilog
https://compas.cs.stonybrook.edu/~nhonarmand/courses/sp15/cse502/slides/03-systemverilog - T
http://mumble.net/~jar/tproject - T-SQL
https://www.tsql.info - TACL
https://www.manualslib.com/manual/522157/Hp-Tacl - TACPOL
http://bitsavers.trailing-edge.com/pdf/litton/an_gyk-12/USACSCS-TF-4-1_TACPOL_Reference_Manual_Jan72 - TADS
https://www.tads.org/ov_lang - TAL
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c02133238 - Tamerlane
https://git.catseye.tc/Specs-on-Spec - Tcl
https://www.tcl-lang.org - TCSH
https://www.tcsh.org - Tea
No live site - TECO
http://zane.brouhaha.com/~healyzh/teco/TecoPocketGuide - TELCOMP
http://hopl.info/showlanguage2.prx?exp=478 - Template Haskell
https://wiki.haskell.org/Template_Haskell - TeX
http://tug.org - TGSI
https://ndesh26.github.io/programming/2016/07/04/A-Beginners-guide-to-TGSI - ThinBasic
http://www.thinbasic.com - ThingLab
http://ftp.squeak.org/goodies/ThingLab - Thue
https://esolangs.org/wiki/Thue - TI-BASIC
http://tibasicdev.wikidot.com - TIE
https://ip.cadence.com/uploads/980/TIP_WP_TIE_FINAL - TOM
http://gerbil.org/tom - ToonTalk
http://www.toontalk.com - ToonTalk Reborn for the Web
https://github.com/ToonTalk/ToonTalk/wiki - TorqueScript
https://github.com/GarageGames/Torque2D/wiki/Torquescript-overview - TouchDesigner
http://derivative.ca - Toy
https://banna.tech/things/post/toy_language - TRAC
http://tracfoundation.org - Transaction Logic
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.51.278 - Treacle
https://freesoft.dev/program/4618679 - Trefunge-98
No live site - TTCN
https://www.itu.int/ITU-T/studygroups/com07/TTCN - TTM
https://github.com/Unidata/ttm - Turing
http://tristan.hume.ca/openturing - TUTOR
https://eric.ed.gov - Twelf
http://twelf.org - Txl
https://www.txl.ca - Tynker
https://www.tynker.com - TypeScript
https://www.typescriptlang.org - Ubercode
http://www.ubercode.com - Umple
https://cruise.eecs.uottawa.ca/umple - Unefunge-98
No live site - Unicon
http://unicon.org - Uniface
https://www.uniface.com - Unified Parallel C
https://upc.lbl.gov - Unix Shell
https://archive.org/stream/byte-magazine-1983-10/1983_10_BYTE_08-10_UNIX#page/n187/mode/2up - Unlambda
http://www.madore.org/~david/programs/unlambda - UnrealScript
https://docs.unrealengine.com/udk/Three/UnrealScriptHome - Ur
http://www.impredicative.com/ur - Vala
https://wiki.gnome.org/Projects/Vala - VBScript
https://docs.microsoft.com/en-us/previous-versions/t0aew7h6 - Vector Pascal
https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=12651 - VEE
https://www.keysight.com/en/pd-1476554-pn-W4000D/vee-pro-932?&cc=ES&lc=eng4 - Verilog
http://classweb.ece.umd.edu/enee359a/verilog_tutorial - Verilog-A/MS
https://verilogams.com - Version
https://git.catseye.tc/Version - VEX Shading Language
https://www.sidefx.com/docs/houdini/vex/lang - VHDL
https://www.vhdl.org - VHDL-AMS
https://tams.informatik.uni-hamburg.de/vhdl/doc/P1076.1/tutdac99 - Vim Script
https://www.vim.org - VisSim
https://web.solidthinking.com/vissim-is-now-solidthinking-embed - Visual Basic
https://docs.microsoft.com/en-us/dotnet/visual-basic/programming-guide - Visual Basic for Applications
https://docs.microsoft.com/en-us/office/vba/api/overview/language-reference - Visual DataFlex
No live site - Visual DialogScript
http://vds.sools.com - Visual Fortran
https://www.pgroup.com/resources/docs/19.7/pdf/pvf19ug - Visual FoxPro
hhttps://docs.microsoft.com/en-us/previous-versions/visualstudio/foxpro - Visual J#
https://msdn.microsoft.com/en-us/vstudio/bb188593 - Visual Logic
https://www.visuallogic.org - Visual Objects
http://www.rockymountain.com/dev_visualobjects - Visual Prolog
https://www.visual-prolog.com - VSXu
http://www.vsxu.com - Vvvv
https://vvvv.org - Vyper
https://vyper.readthedocs.io - W
http://progopedia.com/language/w - WATFIV
http://www.jaymoseley.com/hercules/downloads/pdf/WATFIV_User_Guide - WATFOR
No live site - WebAssembly
https://webassembly.org - WebMethods Flow
http://tech.forums.softwareag.com/techjforum/forums/list/30.page - Whiley
http://whiley.org - Whitespace
http://compsoc.dur.ac.uk/whitespace/tutorial - Widget Workshop
https://www.mobygames.com/game/widget-workshop-the-mad-scientists-laboratory - Wierd
https://git.catseye.tc/Wierd - Winbatch
https://www.winbatch.com - Wolfram
https://www.wolfram.com/language - Windows PowerShell
https://docs.microsoft.com/en-us/powershell/scripting/overview?view=powershell-6 - Wyvern
https://wyvernlang.github.io - X++
https://docs.microsoft.com/en-us/dynamicsax-2012/developer/x-language-programming-guide - X10
http://x10-lang.org - x86
https://cs.lmu.edu/~ray/notes/x86assembly - xBase
https://www.clicketyclick.dk/databases/xbase - XBase++
http://www.alaska-software.com/products/overview - XBL
https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XBL - XC
https://www.xmos.com/developer/download/private/Programming-XC-on-XMOS-Devices - XCSP3
http://www.xcsp.org - XHarbour
http://www.xharbour.org - XL
http://xlr.sourceforge.net - XLispStat
http://lib.stat.cmu.edu/xlispstat - XOD
https://xod.io - Xojo
https://xojo.com - XOTcl
http://media.wu-wien.ac.at - XProc
https://www.w3.org/TR/xproc - XQuery
https://www.w3.org/XML/Query - XPath
https://www.w3.org/TR/1999/REC-xpath-19991116 - XPL
https://www.cs.toronto.edu/XPL - XPL0
http://www.xpl0.org - XSB
http://xsb.sourceforge.net - XSharp
https://www.xsharp.info - XSLT
https://www.w3.org/standards/xml/transformation - Xtend
https://www.eclipse.org/xtend - Yacc
http://dinosaur.compilertools.net - Yahoo! Query Language
https://developer.yahoo.com/yql - YAP
https://arxiv.org/abs/1102.3896 - Yoix
https://github.com/att/yoix - Yorick
http://dhmunro.github.io/yorick-doc - Ypsilax
https://git.catseye.tc/Ypsilax - YUI
https://yuilibrary.com - Z Notation
https://cse.buffalo.edu/LRG/CSE705/Papers/Z-Ref-Manual - Z++
No live site - Zebra
https://www.zebra.com/content/dam/zebra - Zeno
https://esolangs.org/wiki/Zeno - ZetaLisp
http://hopl.info/showlanguage.prx?exp=983 - ZIG
https://ziglang.org - ZOPL
http://hopl.info/showlanguage.prx?exp=2641&language=ZOPL - ZPL
https://research.cs.washington.edu/zpl - Zsh
http://zsh.sourceforge.net/Guide
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