| Format | Mode | Extensions | Mimes |
|---|---|---|---|
| APL | apl | dyalog,apl | text/apl |
| PGP | asciiarmor | pgp | application/pgp,application/pgp-keys,application/pgp-signature |
| ASN.1 | asn.1 | asn,asn1 | text/x-ttcn-asn |
| Asterisk | asterisk | - | text/x-asterisk |
| Brainfuck | brainfuck | b,bf | text/x-brainfuck |
| C | clike | c,h | text/x-csrc |
| C++ | clike | cpp,c++,cc,cxx,hpp,h++,hh,hxx | text/x-c++src |
| Cobol | cobol | cob,cpy | text/x-cobol |
| C# | clike | cs | text/x-csharp |
| Clojure | clojure | clj,cljc,cljx | text/x-clojure |
| ClojureScript | clojure | cljs | text/x-clojurescript |
| Closure Stylesheets (GSS) | css | gss | text/x-gss |
| CMake | cmake | cmake,cmake.in | text/x-cmake |
| CoffeeScript | coffeescript | coffee | text/x-coffeescript |
| Common Lisp | commonlisp | cl,lisp,el | text/x-common-lisp |
| Cypher | cypher | cyp,cypher | application/x-cypher-query |
| Cython | python | pyx,pxd,pxi | text/x-cython |
| Crystal | crystal | cr | text/x-crystal |
| CSS | css | css | text/css |
| CQL | sql | cql | text/x-cassandra |
| D | d | d | text/x-d |
| Dart | dart | dart | application/dart,text/x-dart |
| diff | diff | diff,patch | text/x-diff |
| Django | django | - | text/x-django |
| Dockerfile | dockerfile | - | text/x-dockerfile |
| DTD | dtd | dtd | application/xml-dtd |
| Dylan | dylan | dylan,dyl,intr | text/x-dylan |
| EBNF | ebnf | - | text/x-ebnf |
| ECL | ecl | ecl | text/x-ecl |
| edn | clojure | edn | application/edn |
| Eiffel | eiffel | e | text/x-eiffel |
| Elm | elm | elm | text/x-elm |
| Embedded Javascript | htmlembedded | ejs | application/x-ejs |
| Embedded Ruby | htmlembedded | erb | application/x-erb |
| Erlang | erlang | erl | text/x-erlang |
| Factor | factor | factor | text/x-factor |
| FCL | fcl | - | text/x-fcl |
| Forth | forth | forth,fth,4th | text/x-forth |
| Fortran | fortran | f,for,f77,f90 | text/x-fortran |
| F# | mllike | fs | text/x-fsharp |
| Gas | gas | s | text/x-gas |
| Gherkin | gherkin | feature | text/x-feature |
| GitHub Flavored Markdown | gfm | - | text/x-gfm |
| Go | go | go | text/x-go |
| Groovy | groovy | groovy,gradle | text/x-groovy |
| HAML | haml | haml | text/x-haml |
| Haskell | haskell | hs | text/x-haskell |
| Haskell (Literate) | haskell-literate | lhs | text/x-literate-haskell |
| Haxe | haxe | hx | text/x-haxe |
| HXML | haxe | hxml | text/x-hxml |
| ASP.NET | htmlembedded | aspx | application/x-aspx |
| HTML | htmlmixed | html,htm | text/html |
| HTTP | http | - | message/http |
| IDL | idl | pro | text/x-idl |
| Pug | pug | jade,pug | text/x-pug |
| Java | clike | java | text/x-java |
| Java Server Pages | htmlembedded | jsp | application/x-jsp |
| JavaScript | javascript | js | text/javascript,text/ecmascript,application/javascript,application/x-javascript,application/ecmascript |
| JSON | javascript | json,map | application/json,application/x-json |
| JSON-LD | javascript | jsonld | application/ld+json |
| JSX | jsx | jsx | text/jsx |
| Julia | julia | jl | text/x-julia |
| Kotlin | clike | kt | text/x-kotlin |
| LESS | css | less | text/x-less |
| LiveScript | livescript | ls | text/x-livescript |
| Lua | lua | lua | text/x-lua |
| Markdown | markdown | markdown,md,mkd | text/x-markdown |
| mIRC | mirc | - | text/mirc |
| MariaDB SQL | sql | - | text/x-mariadb |
| Mathematica | mathematica | nb | text/x-mathematica |
| Modelica | modelica | mo | text/x-modelica |
| MUMPS | mumps | mps | text/x-mumps |
| MS SQL | sql | - | text/x-mssql |
| mbox | mbox | mbox | application/mbox |
| MySQL | sql | - | text/x-mysql |
| Nginx | nginx | - | text/x-nginx-conf |
| NSIS | nsis | nsh,nsi | text/x-nsis |
| NTriples | ntriples | nt | text/n-triples |
| Objective C | clike | m,mm | text/x-objectivec |
| OCaml | mllike | ml,mli,mll,mly | text/x-ocaml |
| Octave | octave | m | text/x-octave |
| Oz | oz | oz | text/x-oz |
| Pascal | pascal | p,pas | text/x-pascal |
| PEG.js | pegjs | jsonld | null |
| Perl | perl | pl,pm | text/x-perl |
| PHP | php | php,php3,php4,php5,phtml | application/x-httpd-php |
| Pig | pig | pig | text/x-pig |
| Plain Text | null | txt,text,conf,def,list,log | text/plain |
| PLSQL | sql | pls | text/x-plsql |
| PowerShell | powershell | ps1,psd1,psm1 | application/x-powershell |
| Properties files | properties | properties,ini,in | text/x-properties |
| ProtoBuf | protobuf | proto | text/x-protobuf |
| Python | python | BUILD,bzl,py,pyw | text/x-python |
| Puppet | puppet | pp | text/x-puppet |
| Q | q | q | text/x-q |
| R | r | r,R | text/x-rsrc |
| reStructuredText | rst | rst | text/x-rst |
| RPM Changes | rpm | - | text/x-rpm-changes |
| RPM Spec | rpm | spec | text/x-rpm-spec |
| Ruby | ruby | rb | text/x-ruby |
| Rust | rust | rs | text/x-rustsrc |
| SAS | sas | sas | text/x-sas |
| Sass | sass | sass | text/x-sass |
| Scala | clike | scala | text/x-scala |
| Scheme | scheme | scm,ss | text/x-scheme |
| SCSS | css | scss | text/x-scss |
| Shell | shell | sh,ksh,bash | text/x-sh |
| Sieve | sieve | siv,sieve | application/sieve |
| Slim | slim | slim | text/x-slim,application/x-slim |
| Smalltalk | smalltalk | st | text/x-stsrc |
| Smarty | smarty | tpl | text/x-smarty |
| Solr | solr | - | text/x-solr |
| Soy | soy | soy | text/x-soy |
| SPARQL | sparql | rq,sparql | application/sparql-query |
| Spreadsheet | spreadsheet | - | text/x-spreadsheet |
| SQL | sql | sql | text/x-sql |
| SQLite | sql | - | text/x-sqlite |
| Squirrel | clike | nut | text/x-squirrel |
| Stylus | stylus | styl | text/x-styl |
| Swift | swift | swift | text/x-swift |
| sTeX | stex | - | text/x-stex |
| LaTeX | stex | text,ltx | text/x-latex |
| SystemVerilog | verilog | v | text/x-systemverilog |
| Tcl | tcl | tcl | text/x-tcl |
| Textile | textile | textile | text/x-textile |
| TiddlyWiki | tiddlywiki | - | text/x-tiddlywiki |
| Tiki wiki | tiki | - | text/tiki |
| TOML | toml | toml | text/x-toml |
| Tornado | tornado | - | text/x-tornado |
| troff | troff | 1,2,3,4,5,6,7,8,9 | text/troff |
| TTCN | ttcn | ttcn,ttcn3,ttcnpp | text/x-ttcn |
| TTCN_CFG | ttcn-cfg | cfg | text/x-ttcn-cfg |
| Turtle | turtle | ttl | text/turtle |
| TypeScript | javascript | ts | application/typescript |
| TypeScript-JSX | jsx | tsx | text/typescript-jsx |
| Twig | twig | twig | text/x-twig |
| Web IDL | webidl | webidl | text/x-webidl |
| VB.NET | vb | vb | text/x-vb |
| VBScript | vbscript | vbs | text/vbscript |
| Velocity | velocity | vtl | text/velocity |
| Verilog | verilog | v | text/x-verilog |
| VHDL | vhdl | vhd,vhdl | text/x-vhdl |
| Vue.js Component | vue | vue | script/x-vue,text/x-vue |
| XML | xml | xml,xsl,xsd | application/xml,text/xml |
| SVG | xml | svg | image/svg+xml |
| XQuery | xquery | xy,xquery | application/xquery |
| Yacas | yacas | ys | text/x-yacas |
| YAML | yaml | yaml,yml | text/x-yaml,text/yaml |
| Z80 | z80 | z80 | text/x-z80 |
| mscgen | mscgen | mscgen,mscin,msc | text/x-mscgen |
| xu | mscgen | xu | text/x-xu |
| msgenny | mscgen | msgenny | text/x-msgenny |