Supported Languages

Rune groups language support into tiers. Each tier builds on the one below it, so every supported capability remains available as a language moves up.

Support tiers

Tier	Capabilities
Tier 1	All Tier 2 features, plus LSP and full ecosystem workflows.
Tier 2	All Tier 3 features, plus the symbol indexer.
Tier 3	Syntax highlighting and structural queries.

Tier 1 languages

Language	Status
Go	Supported
Python	Supported
Rust	Beta
Zig	Beta
TypeScript	Roadmap

Beta means the language is complete enough for daily work and shipped by default, while its commands and defaults may still change between releases.

Code intelligence works the same way across Tier 1 languages. See the Code Intelligence guide for the cross-language lsp command: go to definition, find references, diagnostics, hover, rename, and formatting.

Working in a repository with several projects side by side? See the Monorepos guide for how Rune discovers each project and keeps search fast at scale.

Tier 3 language packages

Rune offers Tier 3 support for over 300 additional languages through downloadable language packages. Each package bundles a Tree-sitter grammar and a set of query files, giving Rune a real parse tree for the file instead of plain text. That parse tree powers syntax highlighting, code folding, indentation, and (most usefully) structural search and navigation.

ada	git_config	markdown_inline	sflog
agda	git_rebase	matlab	slang
angular	gitattributes	mdx	slim
apex	gitcommit	menhir	slint
arduino	gitignore	mermaid	smali
asm	gleam	meson	smithy
astro	glimmer	mlir	snakemake
authzed	glimmer_javascript	nasm	snl
awk	glimmer_typescript	nginx	solidity
bash	glsl	nickel	soql
bass	gn	nim	sosl
beancount	gnuplot	nim_format_string	sourcepawn
bibtex	go	ninja	sparql
bicep	goctl	nix	sproto
bitbake	godot_resource	nqc	sql
blade	gomod	nu	squirrel
bp	gosum	objc	ssh_config
bpftrace	gotmpl	objdump	starlark
brightscript	gowork	ocaml	strace
c	gpg	ocaml_interface	styled
c_sharp	graphql	ocamllex	superhtml
c3	gren	odin	surface
caddy	groovy	pascal	svelte
cairo	groq	passwd	sway
capnp	gstlaunch	pem	swift
chatito	hack	perl	sxhkdrc
circom	hare	php	systemtap
clojure	haskell	php_only	systemverilog
cmake	haskell_persistent	phpdoc	t32
comment	hcl	pioasm	tablegen
commonlisp	heex	pkl	tact
cooklang	helm	po	tcl
corn	hjson	pod	teal
cpon	hlsl	poe_filter	templ
cpp	hocon	pony	tera
css	hoon	powershell	terraform
csv	html	printf	textproto
cuda	htmldjango	prisma	thrift
cue	http	problog	tiger
cylc	hurl	prolog	tlaplus
d	hyprlang	promql	todotxt
dart	idl	properties	toml
desktop	idris	proto	tsv
devicetree	ini	prql	tsx
dhall	inko	psv	turtle
diff	ispc	pug	twig
disassembly	janet_simple	puppet	typescript
djot	java	purescript	typespec
dockerfile	javadoc	pymanifest	typoscript
dot	javascript	python	typst
doxygen	jinja	ql	udev
dtd	jinja_inline	qmldir	ungrammar
earthfile	jq	qmljs	unison
ebnf	jsdoc	query	usd
editorconfig	json	r	uxntal
eds	json5	racket	v
eex	jsonnet	rasi	vala
elixir	julia	razor	vento
elm	just	rbs	vhdl
elsa	kcl	re2c	vhs
elvish	kconfig	readline	vim
embedded_template	kdl	regex	vimdoc
enforce	kos	rego	vrl
erlang	kotlin	requirements	vue
facility	koto	rescript	wgsl
faust	kusto	rifleconf	wgsl_bevy
fennel	lalrpop	rnoweb	wing
fidl	latex	robot	wit
firrtl	ledger	robots_txt	wxml
fish	linkerscript	roc	xcompose
forth	liquid	ron	xml
fortran	llvm	rst	xresources
fsh	lua	ruby	yaml
fsharp	luadoc	runescript	yang
func	luap	rust	yuck
gap	luau	scala	zig
gaptst	m68k	scfg	ziggy
gdscript	make	scheme	ziggy_schema
gdshader	markdown	scss	zsh

Installing a language package

You do not install these ahead of time. When you open a file in a language whose package is not yet installed, Rune offers to download and install it, so the right grammar is always ready when you open the matching file type. This is governed by the updates.auto_install setting, which is False by default: Rune prompts before installing. During first-run onboarding, Rune installs packages without prompting regardless of this setting.

To install packages silently without being asked, set auto_install to True:

config.yaml

updates:
  auto_install: true

config.star

config["updates"]["auto_install"] = True

With auto-install turned off (the default), opening a file in a language whose package is not yet installed makes Rune prompt you:

Option	Effect
Yes	Install the package for this file.
Yes, Always	Install now, and auto-install future languages on open without asking again.
No	Skip it this time.

Yes and No apply only to the current file. Yes, Always persists your choice: it installs this package and auto-installs future languages on open without asking again.