This is a list of supported languages used for markdown when you use a code block. I got this list from Prism.JS.
Source
- CSS -
css
- Markup -
markup, html, xml, svg, mathml, ssml, atom, rss
- C-like -
clike
- JavaScript -
javascript, js
- ABAP -
abap
- ABNF -
abnf
- ActionScript -
actionscript
- Ada -
ada
- Agda -
agda
- AL -
al
- ANTLR4 -
antlr4, g4
- Apache Configuration -
apacheconf
- APL -
apl
- AppleScript -
applescript
- AQL -
aql
- Arduino -
arduino
- ARFF -
arff
- AsciiDoc -
asciidoc, adoc
- ASP.NET (C#) -
aspnet
- 6502 Assembly -
asm6502
- AutoHotkey -
autohotkey
- AutoIt -
autoit
- Bash -
bash, shell
- BASIC -
basic
- Batch -
batch
- BBcode -
bbcode, shortcode
- Bison -
bison
- BNF -
bnf, rbnf
- Brainfuck -
brainfuck
- BrightScript -
brightscript
- Bro -
bro
- BSL (1C:Enterprise) -
bsl, oscript
- C -
c
- C# -
csharp, cs, dotnet
- C++ -
cpp
- CIL -
cil
- Clojure -
clojure
- CMake -
cmake
- CoffeeScript -
coffeescript, coffee
- Concurnas -
concurnas, conc
- Content-Security-Policy -
csp
- Crystal -
crystal
- CSS Extras -
css-extras
- Cypher -
cypher
- D -
d
- Dart -
dart
- DAX -
dax
- Dhall -
dhall
- Diff -
diff
- Django/Jinja2 -
django, jinja2
- DNS zone file -
dns-zone-file, dns-zone
- Docker -
docker, dockerfile
- EBNF -
ebnf
- EditorConfig -
editorconfig
- Eiffel -
eiffel
- EJS -
ejs, eta
- Elixir -
elixir
- Elm -
elm
- Embedded Lua templating -
etlua
- ERB -
erb
- Erlang -
erlang
- Excel Formula -
excel-formula, xlsx, xls
- F# -
fsharp
- Factor -
factor
- Firestore security rules -
firestore-security-rules
- Flow -
flow
- Fortran -
fortran
- FreeMarker Template Language -
ftl
- GameMaker Language -
gml, gamemakerlanguage
- G-code -
gcode
- GDScript -
gdscript
- GEDCOM -
gedcom
- Gherkin -
gherkin
- Git -
git
- GLSL -
glsl
- Go -
go
- GraphQL -
graphql
- Groovy -
groovy
- Haml -
haml
- Handlebars -
handlebars
- Haskell -
haskell, hs
- Haxe -
haxe
- HCL -
hcl
- HLSL -
hlsl
- HTTP -
http
- HTTP Public-Key-Pins -
hpkp
- HTTP Strict-Transport-Security -
hsts
- IchigoJam -
ichigojam
- Icon -
icon
- .ignore -
ignore, gitignore, hgignore, npmignore
- Inform 7 -
inform7
- Ini -
ini
- Io -
io
- J -
j
- Java -
java
- JavaDoc -
javadoc
- JavaDoc-like -
javadoclike
- Java stack trace -
javastacktrace
- Jolie -
jolie
- JQ -
jq
- JSDoc -
jsdoc
- JS Extras -
js-extras
- JSON -
json, webmanifest
- JSON5 -
json5
- JSONP -
jsonp
- JS stack trace -
jsstacktrace
- JS Templates -
js-templates
- Julia -
julia
- Keyman -
keyman
- Kotlin -
kotlin, kt, kts
- LaTeX -
latex, tex, context
- Latte -
latte
- Less -
less
- LilyPond -
lilypond, ly
- Liquid -
liquid
- Lisp -
lisp, emacs, elisp, emacs-lisp
- LiveScript -
livescript
- LLVM IR -
llvm
- LOLCODE -
lolcode
- Lua -
lua
- Makefile -
makefile
- Markdown -
markdown, md
- Markup templating -
markup-templating
- MATLAB -
matlab
- MEL -
mel
- Mizar -
mizar
- MongoDB -
mongodb
- Monkey -
monkey
- MoonScript -
moonscript, moon
- N1QL -
n1ql
- N4JS -
n4js, n4jsd
- Nand To Tetris HDL -
nand2tetris-hdl
- Naninovel Script -
naniscript, nani
- NASM -
nasm
- NEON -
neon
- nginx -
nginx
- Nim -
nim
- Nix -
nix
- NSIS -
nsis
- Objective-C -
objectivec, objc
- OCaml -
ocaml
- OpenCL -
opencl
- Oz -
oz
- PARI/GP -
parigp
- Parser -
parser
- Pascal -
pascal, objectpascal
- Pascaligo -
pascaligo
- PC-Axis -
pcaxis, px
- PeopleCode -
peoplecode, pcode
- Perl -
perl
- PHP -
php
- PHPDoc -
phpdoc
- PHP Extras -
php-extras
- PL/SQL -
plsql
- PowerQuery -
powerquery, pq, mscript
- PowerShell -
powershell
- Processing -
processing
- Prolog -
prolog
- .properties -
properties
- Protocol Buffers -
protobuf
- Pug -
pug
- Puppet -
puppet
- Pure -
pure
- PureBasic -
purebasic, pbfasm
- Python -
python, py
- Q (kdb+ database) -
q
- QML -
qml
- Qore -
qore
- R -
r
- Racket -
racket, rkt
- React JSX -
jsx
- React TSX -
tsx
- Reason -
reason
- Regex -
regex
- Ren'py -
renpy, rpy
- reST (reStructuredText) -
rest
- Rip -
rip
- Roboconf -
roboconf
- Robot Framework -
robotframework, robot
- Ruby -
ruby, rb
- Rust -
rust
- SAS -
sas
- Sass (Sass) -
sass
- Sass (Scss) -
scss
- Scala -
scala
- Scheme -
scheme
- Shell session -
shell-session
- Smali -
smali
- Smalltalk -
smalltalk
- Smarty -
smarty
- Solidity (Ethereum) -
solidity, sol
- Solution file -
solution-file, sln
- Soy (Closure Template) -
soy
- SPARQL -
sparql, rq
- Splunk SPL -
splunk-spl
- SQF: Status Quo Function (Arma 3) -
sqf
- SQL -
sql
- Stan -
stan
- Structured Text (IEC 61131-3) -
iecst
- Stylus -
stylus
- Swift -
swift
- T4 templating -
t4-templating
- T4 Text Templates (C#) -
t4-cs, t4
- T4 Text Templates (VB) -
t4-vb
- TAP -
tap
- Tcl -
tcl
- Template Toolkit 2 -
tt2
- Textile -
textile
- TOML -
toml
- Turtle -
turtle, trig
- Twig -
twig
- TypeScript -
typescript, ts
- TypoScript -
typoscript, tsconfig
- UnrealScript -
unrealscript, uscript, uc
- Vala -
vala
- VB.Net -
vbnet
- Velocity -
velocity
- Verilog -
verilog
- VHDL -
vhdl
- vim -
vim
- Visual Basic -
visual-basic, vb, vba
- WarpScript -
warpscript
- WebAssembly -
wasm
- Wiki markup -
wiki
- Xeora -
xeora, xeoracube
- XML doc (.net) -
xml-doc
- Xojo (REALbasic) -
xojo
- XQuery -
xquery
- YAML -
yaml, yml
- YANG -
yang
- Zig -
zig