Language support

Language Support

The following languages and Language Servers are supported. To use Language Server features, you must first configure the appropriate Language Server.

You can check the language support in your installed helix version with hx --health.

Also see the Language Configuration docs and the Adding Languages guide for more language configuration information.

Language	Syntax Highlighting	Treesitter Textobjects	Auto Indent	Code Navigation Tags	Rainbow Brackets	Default language servers
ada	✓	✓				`ada_language_server`
adl	✓	✓	✓
agda	✓
alloy	✓
amber	✓	✓	✓	✓	✓	`amber-lsp`
astro	✓					`astro-ls`
awk	✓	✓				`awk-language-server`
bash	✓	✓	✓	✓	✓	`bash-language-server`
basic	✓	✓	✓	✓
bass	✓					`bass`
batch	✓	✓	✓	✓	✓
beancount	✓					`beancount-language-server`
bibtex	✓					`texlab`
bicep	✓					`bicep-langserver`
bitbake	✓					`bitbake-language-server`
blade	✓	✓			✓
blueprint	✓					`blueprint-compiler`
bovex
c	✓	✓	✓	✓	✓	`clangd`
c-sharp	✓	✓	✓	✓	✓	`roslyn-language-server`, `OmniSharp`, `csharp-ls`
c3	✓					`c3-lsp`
cabal						`haskell-language-server-wrapper`
caddyfile	✓	✓	✓
cairo	✓	✓	✓			`cairo-language-server`
capnp	✓		✓
cel	✓
chuck	✓
circom	✓					`circom-lsp`
clarity	✓	✓	✓	✓	✓	`clarinet`
clojure	✓	✓	✓	✓	✓	`clojure-lsp`
cmake	✓	✓	✓		✓	`neocmakelsp`, `cmake-language-server`
codeql	✓	✓				`codeql`
comment	✓
common-lisp	✓	✓		✓	✓	`cl-lsp`
concerto	✓	✓	✓
cpon	✓		✓
cpp	✓	✓	✓	✓	✓	`clangd`
cross-config	✓	✓			✓	`taplo`, `tombi`
crystal	✓	✓	✓	✓	✓	`crystalline`, `ameba-ls`
css	✓	✓	✓		✓	`vscode-css-language-server`
csv	✓
cue	✓					`cue`
cylc	✓	✓	✓
cython	✓		✓	✓
d	✓	✓	✓			`serve-d`
dart	✓	✓	✓	✓	✓	`dart`
dbml	✓
debian	✓					`debian-lsp`
devicetree	✓					`dts-lsp`
dhall	✓	✓				`dhall-lsp-server`
diff	✓
djot	✓
docker-bake	✓	✓	✓	✓	✓	`docker-language-server`
docker-compose	✓	✓	✓			`docker-compose-langserver`, `yaml-language-server`, `docker-language-server`
dockerfile	✓	✓				`docker-langserver`, `docker-language-server`
dot	✓					`dot-language-server`
doxyfile	✓	✓	✓	✓
drools						`drools-lsp`
dtd	✓
dune	✓
dunstrc	✓
earthfile	✓	✓	✓			`earthlyls`
ebnf	✓					`ebnfer`
edoc	✓
eex	✓
eiffel	✓	✓	✓			`eiffel-language-server`
ejs	✓
elisp	✓			✓
elixir	✓	✓	✓	✓	✓	`elixir-ls`, `expert`
elm	✓	✓		✓	✓	`elm-language-server`
elvish	✓					`elvish`
embedded-perl	✓
env	✓	✓
erb	✓
erlang	✓	✓	✓	✓	✓	`erlang_ls`, `elp`
esdl	✓
fennel	✓				✓	`fennel-ls`
fga	✓	✓	✓
fidl	✓
fish	✓	✓	✓			`fish-lsp`
flatbuffers	✓
forth	✓					`forth-lsp`
fortran	✓		✓			`fortls`
freebasic	✓	✓	✓	✓
fsharp	✓				✓	`fsautocomplete`
gas	✓	✓				`asm-lsp`
gdscript	✓	✓	✓	✓	✓	`ncat`
gemini	✓
gherkin	✓
ghostty	✓					`ghostty-ls`
git-attributes	✓
git-cliff-config	✓	✓			✓	`taplo`, `tombi`
git-commit	✓	✓				`commit-lsp`
git-config	✓	✓		✓
git-ignore	✓
git-notes	✓
git-rebase	✓
github-action	✓	✓	✓		✓	`actions-languageserver`, `yaml-language-server`, `zizmor`
gitlab-ci	✓	✓	✓	✓	✓	`yaml-language-server`, `gitlab-ci-ls`
gjs	✓	✓	✓	✓		`typescript-language-server`, `vscode-eslint-language-server`, `ember-language-server`
gleam	✓	✓			✓	`gleam`
glimmer	✓					`ember-language-server`
glsl	✓	✓	✓	✓	✓	`glsl_analyzer`, `glsld`
gn	✓
gnuplot	✓
go	✓	✓	✓	✓	✓	`gopls`, `golangci-lint-langserver`
go-format-string	✓				✓
godot-resource	✓	✓		✓
gomod	✓					`gopls`
gotmpl	✓					`gopls`
gowork	✓					`gopls`
gpr	✓					`ada_language_server`
graphql	✓	✓			✓	`graphql-lsp`
gren	✓	✓
groovy	✓				✓
gts	✓	✓	✓	✓		`typescript-language-server`, `vscode-eslint-language-server`, `ember-language-server`
hare	✓	✓				`hare-lsp`
haskell	✓	✓		✓	✓	`haskell-language-server-wrapper`
haskell-literate	✓					`haskell-language-server-wrapper`
haskell-persistent	✓
haxe	✓			✓
hcl	✓	✓	✓		✓	`terraform-ls`
hdl	✓					`hdls`
heex	✓	✓				`elixir-ls`, `expert`
helm	✓					`helm_ls`
hocon	✓	✓	✓
hoon	✓
hosts	✓
html	✓	✓	✓		✓	`vscode-html-language-server`, `superhtml`
htmldjango	✓					`djlsp`, `vscode-html-language-server`, `superhtml`
hurl	✓	✓	✓
hy	✓					`hyuga`
hyprlang	✓		✓	✓		`hyprls`
idris						`idris2-lsp`
iex	✓
ini	✓			✓
ink	✓	✓	✓
inko	✓	✓	✓	✓
janet	✓		✓		✓
java	✓	✓	✓	✓	✓	`jdtls`
javascript	✓	✓	✓	✓	✓	`typescript-language-server`
jinja	✓
jjconfig	✓	✓	✓			`taplo`, `tombi`
jjdescription	✓
jjrevset	✓
jjtemplate	✓
jq	✓	✓				`jq-lsp`
jsdoc	✓
json	✓	✓	✓		✓	`vscode-json-language-server`
json-ld	✓	✓	✓		✓	`vscode-json-language-server`
json5	✓	✓	✓		✓
jsonc	✓	✓	✓		✓	`vscode-json-language-server`
jsonnet	✓					`jsonnet-language-server`
jsx	✓	✓	✓	✓	✓	`typescript-language-server`
julia	✓	✓	✓	✓	✓	`julia`
just	✓	✓	✓	✓		`just-lsp`
kcl	✓					`kcl-language-server`
kconfig	✓		✓
kdl	✓	✓	✓	✓	✓
klog	✓
koka	✓		✓			`koka`
kotlin	✓	✓	✓	✓	✓	`kotlin-language-server`
koto	✓	✓	✓		✓	`koto-ls`
latex	✓	✓	✓			`texlab`
ld	✓		✓
ldif	✓
lean	✓					`lake`
ledger	✓
less	✓		✓		✓	`vscode-css-language-server`
llvm	✓	✓	✓
llvm-mir	✓	✓	✓
llvm-mir-yaml	✓		✓
log	✓
lpf	✓
lua	✓	✓	✓	✓	✓	`lua-language-server`
lua-format-string	✓
luap	✓
luau	✓	✓	✓			`luau-lsp`
mail	✓	✓			✓
make	✓		✓
markdoc	✓					`markdoc-ls`
markdown	✓			✓		`marksman`, `markdown-oxide`, `rumdl`
markdown-rustdoc	✓
markdown.inline	✓
matlab	✓	✓	✓
mermaid	✓
meson	✓		✓			`mesonlsp`
metamath	✓			✓		`mm-lsp-server`
mint						`mint`
miseconfig	✓	✓	✓			`taplo`, `tombi`
mojo	✓	✓	✓			`pixi`
moonbit	✓	✓	✓	✓		`moonbit-lsp`
move	✓		✓
msbuild	✓		✓
nasm	✓	✓				`asm-lsp`
nearley	✓				✓
nestedtext	✓	✓	✓
nginx	✓					`nginx-language-server`
nickel	✓		✓			`nls`
nim	✓	✓	✓		✓	`nimlangserver`
nix	✓	✓	✓	✓	✓	`nil`, `nixd`
nu	✓	✓	✓			`nu`, `nu-lint`
nunjucks	✓
ocaml	✓	✓	✓		✓	`ocamllsp`
ocaml-interface	✓					`ocamllsp`
odin	✓	✓	✓			`ols`
ohm	✓	✓	✓
opencl	✓	✓	✓			`clangd`
openscad	✓					`openscad-lsp`
org	✓
p	✓
pascal	✓	✓				`pasls`
passwd	✓
pem	✓
penrose	✓	✓
perl	✓	✓	✓	✓	✓	`perlnavigator`
pest	✓	✓	✓			`pest-language-server`
php	✓	✓	✓	✓	✓	`intelephense`
php-only	✓			✓
picat	✓	✓	✓	✓	✓
pip-requirements	✓
pkgbuild	✓	✓	✓			`termux-language-server`, `bash-language-server`
pkl	✓		✓			`pkl-lsp`
po	✓	✓
pod	✓
ponylang	✓	✓	✓			`pony-lsp`
powershell	✓				✓
prisma	✓	✓				`prisma-language-server`
prolog	✓		✓			`swipl`
properties	✓	✓
protobuf	✓	✓	✓	✓		`buf`, `pb`, `protols`
proverif	✓
prql	✓
ptx	✓		✓
pug	✓
puppet	✓		✓			`puppet-languageserver`
purescript	✓	✓				`purescript-language-server`
python	✓	✓	✓	✓	✓	`ty`, `ruff`, `jedi-language-server`, `pylsp`, `zuban`
qml	✓	✓	✓			`qmlls`
qmv
quarto	✓		✓
quint	✓					`quint-language-server`
r	✓	✓	✓	✓	✓	`R`
racket	✓		✓		✓	`racket`
regex	✓				✓
rego	✓					`regols`
rescript	✓	✓				`rescript-language-server`
ripple	✓			✓	✓	`ripple-language-server`
rmarkdown	✓		✓			`R`
robot	✓		✓			`robotcode`, `robotframework_ls`
robots.txt	✓	✓		✓
ron	✓		✓	✓	✓	`ron-lsp`
rpmspec	✓
rshtml	✓	✓				`rshtml-analyzer`, `vscode-html-language-server`, `superhtml`
rst	✓			✓
ruby	✓	✓	✓	✓	✓	`ruby-lsp`, `solargraph`
rust	✓	✓	✓	✓	✓	`rust-analyzer`
rust-format-args	✓
rust-format-args-macro	✓	✓	✓		✓
sage	✓	✓
scala	✓	✓	✓	✓	✓	`metals`
scfg	✓
scheme	✓	✓	✓	✓	✓
scss	✓		✓		✓	`vscode-css-language-server`
sgf	✓	✓	✓
shellcheckrc	✓	✓
slang	✓	✓	✓			`slangd`
slint	✓	✓	✓			`slint-lsp`
slisp	✓			✓
smali	✓		✓			`smalisp`
smithy	✓					`cs`
sml	✓					`millet-ls`
snakemake	✓		✓			`pylsp`
solidity	✓	✓			✓	`solc`
sourcepawn	✓	✓				`sourcepawn-studio`
spade	✓		✓		✓	`swim`
spicedb	✓			✓
sql	✓	✓			✓
ssh_client_config	✓
starlark	✓	✓	✓		✓	`starpls`, `buck2`
strace	✓
strictdoc	✓			✓
styx	✓	✓	✓		✓	`styx`
supercollider	✓
svelte	✓	✓	✓	✓	✓	`svelteserver`
sway	✓	✓	✓			`forc`
swift	✓	✓	✓	✓	✓	`sourcekit-lsp`
systemd	✓			✓		`systemd-lsp`
systemverilog	✓					`svlangserver`, `verible-verilog-ls`
t32	✓
tablegen	✓	✓	✓
tact	✓	✓	✓
task	✓
tcl	✓		✓
teal	✓					`teal-language-server`
templ	✓	✓		✓	✓	`templ`
tera	✓
textproto	✓	✓	✓
tfvars	✓		✓			`terraform-ls`
thrift	✓
tilt	✓	✓	✓		✓	`tilt`
tlaplus	✓
todotxt	✓
tolk	✓		✓
toml	✓	✓	✓	✓	✓	`taplo`, `tombi`
tql	✓		✓
tsq	✓				✓	`ts_query_ls`
tsx	✓	✓	✓	✓	✓	`typescript-language-server`
twig	✓
typescript	✓	✓	✓	✓	✓	`typescript-language-server`
typespec	✓	✓	✓			`tsp-server`
typst	✓	✓		✓		`tinymist`
ungrammar	✓
unison	✓	✓	✓	✓	✓
uxntal	✓
v	✓	✓	✓			`v-analyzer`
vala	✓	✓				`vala-language-server`
varlink	✓					`varlink-language-server`
vento	✓
verilog	✓	✓				`verible-verilog-ls`
vhdl	✓					`vhdl_ls`
vhs	✓
vim	✓				✓
vue	✓	✓	✓			`vue-language-server`
wast	✓
wat	✓					`wat_server`
webc	✓
werk	✓
wesl	✓	✓
wgsl	✓	✓	✓	✓	✓	`wgsl-analyzer`
wikitext	✓					`wikitext-lsp`
wit	✓		✓
woodpecker-ci	✓	✓	✓	✓	✓	`yaml-language-server`
wren	✓	✓	✓
xit	✓
xml	✓	✓	✓		✓
xtc	✓
xwiki	✓
yaml	✓	✓	✓		✓	`yaml-language-server`, `ansible-language-server`
yara	✓					`yls`
yuck	✓		✓		✓
zig	✓	✓	✓	✓	✓	`zls`

Keyboard shortcuts

Language Support