Langserver.org
A community-driven source of knowledge for Language Server Protocol implementations


Langserver.org is a community-driven site, maintained by Sourcegraph, to track development progress of LSP-compatible language servers and clients.

What is LSP?

The Language Server protocol is used between a tool (the client) and a language smartness provider (the server) to integrate features like auto complete, go to definition, find all references and alike into the tool

– official Language Server Protocol specification

The LSP was created by Microsoft to define a common language for programming language analyzers to speak. Today, several companies have come together to support its growth, including Codenvy, Red Hat, and Sourcegraph, and the protocol is becoming supported by a rapidly growing list of editor and language communities. See below for details on and links to current client and server implementations.


Why LSP?

LSP creates the opportunity to reduce the m-times-n complexity problem of providing a high level of support for any programming language in any editor, IDE, or client endpoint to a simpler m-plus-n problem.

For example, instead of the traditional practice of building a Python plugin for VSCode, a Python plugin for Sublime Text, a Python plugin for Vim, a Python plugin for Sourcegraph, and so on, for every language, LSP allows language communities to concentrate their efforts on a single, high performing language server that can provide code completion, hover tooltips, jump-to-definition, find-references, and more, while editor and client communities can concentrate on building a single, high performing, intuitive and idiomatic extension that can communicate with any language server to instantly provide deep language support.


The problem: "The Matrix"

Go Java TypeScript ...
Emacs
Vim
VSCode
...

The solution: lang servers and clients

Go
Java
TypeScript
...
Emacs
Vim
VSCode
...

Current implementations

LSP is growing - fast. See tables below for the latest on adoption.

Microsoft currently maintains a parallel list of language server implementations in the core LSP repository. This site is designed to operate alongside Microsoft's list by providing more information about the capabilities of language servers and LSP clients, informing users which features to expect when they download and install a new language server and/or client, and communicating to open-source contributors where help is needed.


Qualifications:

To be included on this list, language servers and clients must:

  1. Be fully open source
  2. Be editor-agnostic for language servers or language-agnostic for clients
  3. Implement at least one of the key methods listed below

Key

Implemented
WIP
Not implemented
Not applicable

Language servers

Language Maintainer       Repository Code completion Hover Jump to def Workspace symbols Find references Diagnostics Additional capabilities
ActionScript3 Josh Tynjala github.com/BowlerHatLLC/vscode-nextgenas/tree/master/language-server
Ada AdaCore github.com/AdaCore/ada_language_server
ANTLR Ken Domino github.com/kaby76/AntlrVSIX Semantic highlighting, rename, reformat, refactoring, ANTLR 2/3/4, Bison, W3C EBNF
Apache Camel Camel Tooling github.com/camel-tooling/camel-language-server
Ballerina ballerina.io github.com/ballerina-platform/ballerina-lang/tree/master/language-server
Bash Mads Hartmann github.com/bash-lsp/bash-language-server
BibTeX Andrew Pilsch https://github.com/oncomouse/citation-langserver
C# OmniSharp github.com/OmniSharp/csharp-language-server-protocol
  • Runs tests
  • Quick fixes
  • Debug profiles
C# CXuesong github.com/CXuesong/LanguageServer.NET
C# Saulius Menkevičius github.com/razzmatazz/csharp-language-server
  • suppport for go-to-definition in metadata (on imported dlls)
C / C++ LLVM Team clang-tools-extra/trunk/clangd
C / C++ Jacob Dufault github.com/cquery-project/cquery
C / C++ MaskRay github.com/MaskRay/ccls
Clojure snoe github.com/snoe/clojure-lsp
Common Workflow Language (CWL) Seven Bridges/Rabix Rabix/Benten
  • Outline view
  • Javascript expression test evaluation
  • Preview of workflow graph
  • Preview of linked files
Coq Coq LSP Team coq-lsp
  • Outline view
  • Extensions: info panel request, file progress notification, performance report
Cucumber (Gherkin) Cucumber core team cucumber/language-server
  • Autocomplete steps
  • Go to step definition
  • Generate step definition from snippets
  • Syntax highlighting (semantic tokens)
  • Diagnostics for undefined steps
  • Formatting
  • Outline view
IBM Enterprise COBOL for z/OS IBM marketplace.visualstudio.com/items?itemName=IBM.zopeneditor
  • Outline view
  • Previewing of included copybooks on hover
  • Navigate to copybooks
  • Code template snippets
  • Refactoring such as "rename symbol"
  • Variable completion
IBM Enterprise COBOL for z/OS Broadcom github.com/eclipse/che-che4z-lsp-for-cobol
  • Automatic copybook resolution
  • Previewing of included copybooks on hover
  • COBOL Control Flow integration
  • Outline view
  • Code snippets support
  • Support for DB2, CICS and IDMS statements in Cobol
  • Subroutines support
CSS/LESS/SASS Microsoft github.com/Microsoft/vscode/tree/main/extensions/css
CSS/LESS/SASS DeltaEvo github.com/vscode-langservers/vscode-css-languageserver-bin
D WebFreak001 github.com/Pure-D/serve-d
Dart Dart Team github.com/dart-lang/sdk
Delphi Embarcadero Proprietary ( DelphiLSP)
  • No arbitrary code execution 2
  • Multi-process architecture
Deno Deno Team github.com/denoland/deno/tree/master/cli/lsp
Dockerfile Remy Suen github.com/rcjsuen/dockerfile-language-server-nodejs
DreamMaker SpaceManiac github.com/SpaceManiac/SpacemanDMM/tree/master/crates/dm-langserver
  • No arbitrary code execution 2
Erg Shunsuke Shibayama and contributors github.com/erg-lang/erg/tree/main/crates/els
Erlang Erlang/OTPand Vlad Dumitrescu github.com/erlang/sourcer
Erlang Roberto Aloi, Juan Facorro and other contributors github.com/erlang-ls/erlang_ls
Elixir Elixir LSP github.com/elixir-lsp/elixir-ls
Elm Elm Tooling github.com/elm-tooling/elm-language-server
  • SymbolDescriptor extension 4
F# Ionide github.com/fsharp/FsAutoComplete/
Fennel XeroOl git.sr.ht/~xerool/fennel-ls
  • No arbitrary code execution 2
fluent-bit Seonghyeon Cho github.com/sh-cho/fluent-bit-lsp
Flux InfluxData github.com/influxdata/flux-lsp
Fortran Chris Hansen github.com/hansec/fortran-language-server
Fuzion Tokiwa Software GmbH github.com/tokiwa-software/fuzion-lsp-server Renaming, Outline, Signature Help
Gauge Gauge github.com/getgauge/gauge
Gleam Louis Pilfold github.com/gleam-lang/gleam
GLSL Sven-Hendrik Haase github.com/svenstaro/glsl-language-server
Go Archived Sourcegraph github.com/sourcegraph/go-langserver
  • No arbitrary code execution 2
Go Go Team github.com/golang/tools/tree/master/gopls
Grain Grain Team github.com/grain-lang/grain Code formatting
GraphQL GraphQL Foundation github.com/graphql/graphiql
Groovy Prominic github.com/prominic/groovy-language-server
Groovy Palantir github.com/palantir/groovy-language-server
Groovy VsCode Groovy Lint github.com/nvuillam/vscode-groovy-lint/tree/master/server Code Formatting
Code refactoring (auto-fix errors)
Hack HHVM Team github.com/facebook/hhvm
Haskell Haskell https://github.com/haskell/haskell-language-server
Haxe Haxe Foundation github.com/vshaxe/haxe-language-server
Helm (Kubernetes) qvalentin github.com/mrjosh/helm-ls
IBM High Level Assembler Broadcom github.com/eclipse/che-che4z-lsp-for-hlasm
IBM High Level Assembler IBM marketplace.visualstudio.com/items?itemName=IBM.zopeneditor
  • Outline view
  • Previewing of copybooks on hover
  • Navigate to copybooks
HTML Microsoft github.com/Microsoft/vscode/tree/main/extensions/html
Imandra Protocol Language Aesthetic Integration https://github.com/AestheticIntegration/ipl-vscode
Java Eclipse Foundation, Red Hat, Microsoft github.com/eclipse/eclipse.jdt.ls
Java georgewfraser github.com/georgewfraser/vscode-javac
Java Apache NetBeans marketplace.visualstudio.com/items?itemName=ASF.apache-netbeans-java
  • Gradle, Maven, and mx support
  • Polyglot and Native Image debugging
  • OpenJDK sources support + jtreg
JavaScript Typefox github.com/theia-ide/typescript-language-server
JavaScript quick-lint-js github.com/quick-lint/quick-lint-js
JavaScript (Flow) Flowtype github.com/flowtype/flow-for-vscode
JSON Microsoft github.com/microsoft/vscode/tree/main/extensions/json-language-features/server
JSON Schema Microsoft github.com/microsoft/vscode/tree/main/extensions/json-language-features/server
JSON-LD Arthur Vercruysse github.com/ajuvercr/jsonld-lsp
Jsonnet Grafana Labs github.com/grafana/jsonnet-language-server
JS/TS + PHP + Python + Java SonarSource github.com/SonarSource/sonarlint-language-server
Julia David Anthoff github.com/JuliaEditorSupport/LanguageServer.jl
Kotlin fwcd github.com/fwcd/KotlinLanguageServer
Langium TypeFox github.com/langium/langium Tool for implementing a language server in any language
LanguageTool Julian Valentin github.com/valentjn/ltex-ls Checking spelling and grammar in markup languages such as LaTeX, Markdown, XHTML, …
LaTeX Eric Förster github.com/efoerster/texlab
Lua Alloyed github.com/Alloyed/lua-lsp
Lua tangzx github.com/EmmyLua/EmmyLua-LanguageServer
Lua LuaLS github.com/LuaLS/lua-language-server
Markdown Artem Pianykh github.com/artempyanykh/marksman
  • Support for wiki-links
  • Table of Contents generation
  • Single-file mode
MOCA Danny Glass github.com/mrglassdanny/moca-language-server Formatting, Semantic Highlighting, Signature Help, MOCA Client Capabilities
Odin Daniel Gavin https://github.com/DanielGavin/ols
OCaml OCaml github.com/ocaml/ocaml-lsp
Nim PMunch github.com/PMunch/nimlsp
openVALIDATION openVALIDATION github.com/openvalidation/ov-language-server
Perl Gerald Richter github.com/richterger/Perl-LanguageServer
  • Installable via CPAN - https://metacpan.org/pod/Perl::LanguageServer
  • Implements Debug Adaptor Protocol
Perl Brian Scannell github.com/bscan/PerlNavigator
  • No external dependencies
PHP Felix Becker github.com/felixfbecker/php-language-server
  • No arbitrary code execution 2
PHP Dan Leech github.com/phpactor/phpactor
  • No arbitrary code execution 2
  • Code Action
  • Document Highlight
  • Goto Implementation
  • Document Symbol
  • Has custom extensions
PHP Tom Gerrits gitlab.com/Serenata/Serenata
  • No arbitrary code execution 2
  • Has custom extensions
PHP Hvy Industries github.com/HvyIndustries/crane/blob/master/server
PHP Matt Brown github.com/vimeo/psalm
  • No arbitrary code execution 2
IBM Enterprise PL/I for z/OS IBM marketplace.visualstudio.com/items?itemName=IBM.zopeneditor
  • Outline view
  • Previewing of include files on hover
  • Navigate to include files
  • Refactoring such as "rename symbol"
  • Variable completion
Polyglot
(Java, JavaScript, Python, R, Ruby, …) 		GraalVM marketplace.visualstudio.com/items?itemName=oracle-labs-graalvm.graalvm
  • Supports polyglot programming
  • Based on dynamic run-time data
  • Supports delegation to other language servers
PowerShell Microsoft github.com/PowerShell/PowerShellEditorServices
Puppet Lingua Pupuli github.com/lingua-pupuli/puppet-editor-services
PureScript Nicholas Wolverson github.com/nwolverson/purescript-language-server
Python Microsoft github.com/microsoft/pyright
Python Archived Microsoft github.com/Microsoft/python-language-server
Python Archived Sourcegraph https://github.com/sourcegraph/python-langserver
  • Automatic dependency management 1
  • No arbitrary code execution 2
Python python-lsp github.com/python-lsp/python-lsp-server
Python Samuel Roeca github.com/pappasam/jedi-language-server
Q# Archived Microsoft github.com/microsoft/qsharp-compiler
R REditorSupport github.com/REditorSupport/languageserver Code Formatting
Racket Conor Finegan github.com/jeapostrophe/racket-langserver
Raku Brian Scannell github.com/bscan/RakuNavigator
Red bitbegin github.com/bitbegin/redlangserver
reStructuredText swyddfa github.com/swyddfa/esbonio
Rego Styra github.com/StyraInc/regal Goto Definition Request, Code Actions, Folding Range, Formatting, Inlay Hints
Robot Framework Robocorp github.com/robocorp/robotframework-lsp Code Formatting
Ruby Fred Snyder github.com/castwide/solargraph
Ruby Shopify github.com/Shopify/ruby-lsp
Rust Archived Nick Cameron and the Rust community github.com/rust-lang/rls
  • Automatic dependency management 1
Rust Aleksey Kladov and contributors github.com/rust-analyzer/rust-analyzer
  • Automatic dependency management 1
Scala Iulian Dragos github.com/dragos/dragos-vscode-scala
Scala Scalameta github.com/scalameta/metals
  • Automatic dependency management 1
  • Tree View Protocol 5
  • Decoration Protocol 6
SPARQL Stardog Union github.com/stardog-union/stardog-language-servers/tree/master/packages/sparql-language-server
  • No arbitrary code execution 2
Smalltalk/Pharo Benoît Verhaeghe github.com/badetitou/Pharo-LanguageServer Code Formatting, Signature Help
Snyk Snyk https://github.com/snyk/snyk-ls Automatic download of Snyk CLI with custom notification of path to binary, diagnostic workspace scans over all workspace folders on startup. Supports Snyk Code, Snyk IaC and Snyk Open Source. Authentication to Snyk is supported and token returned via custom notification.
Standard ML Ariel Davis Millet Code formatting
Swift & C-family Apple Inc github.com/apple/sourcekit-lsp
Systemtap Red Hat Systemtap LSP
SystemVerilog dalance github.com/dalance/svls
Terraform Julio Tain Sueiras github.com/juliosueiras/terraform-lsp
  • Dynamic completion from provider binary
Terraform Hashicorp github.com/hashicorp/terraform-ls
TTCN-3 Nokia github.com/nokia/ntt
  • Automatic dependency management 1
Turtle Stardog Union github.com/stardog-union/stardog-language-servers/tree/master/packages/turtle-language-server
  • No arbitrary code execution 2
TypeScript TypeFox github.com/theia-ide/typescript-language-server
V vlang https://github.com/vlang/v-analyzer
Vala vala-lang https://github.com/vala-lang/vala-language-server
Veryl dalance github.com/dalance/veryl/tree/master/crates/languageserver Formatting, Semantic highlighting
VimScript iamcco github.com/iamcco/vim-language-server
XML IBM github.com/microclimate-devops/xml-language-server
XML Red Hat and Angelo ZERR github.com/angelozerr/lsp4xml XML Schema validation/completion, Foldings, Rename element, Formatting, Document Link, Extensible to add custom completion, hover, etc
YAML Red Hat github.com/redhat-developer/yaml-language-server
YANG TypeFox github.com/yang-tools/yang-lsp
Xtext (Any Language) TypeFox github.com/eclipse/xtext-core

Work in Progress
Crystal Archived Ryan L. Bell and contributors github.com/crystal-lang-tools/scry
PlantUML Patrick Dewey github.com/ptdewey/plantuml-lsp
reStructuredText Archived Lex Li github.com/lextm/restructuredtext-antlr
Ruby Fumiaki MATSUSHIMA github.com/mtsmfm/language_server-ruby
TypeCobol TypeCobol Team TypeCobol Language Server
WebAssembly Archived Darin Morrison github.com/wasm-lsp/wasm-language-server
Zig zigtools and contributors github.com/zigtools/zls
Notes:
Automatic dependency management
Language servers that support this feature are able to resolve / install a project's 3rd-party dependencies without the need for a user to manually intervene.
No arbitrary code execution
Language servers that support this feature don't execute arbitrary code (some language servers do this when running build scripts, analyzing the project, etc.).
Tree View Protocol
Language servers that support this feature are able to render tree views. See this link for more information.
Decoration Protocol
Language servers that support this feature are able to provide text to be displayed as "non-editable" text in the text editor. See this link for more information.


LSP clients

Editor/client Maintainer       Repository Code completion Hover Jump to def Find references Symbol search Diagnostics
Acme Fazlul Shahriar https://github.com/fhs/acme-lsp
BBEdit Bare Bones Software, Inc. Proprietary
C++Builder Embarcadero Proprietary
Delphi Embarcadero Proprietary
Eclipse LSP4E Eclipse github.com/eclipse/lsp4e/
Eclipse Che Eclipse, Codenvy github.com/eclipse/che/
Emacs Vibhav Pant github.com/emacs-lsp/lsp-mode
Emacs João Távora github.com/joaotavora/eglot
Emacs Andy Stewart github.com/manateelazycat/lsp-bridge
Geany Jiří Techet github.com/techee/geany-lsp
GNATStudio AdaCore https://github.com/AdaCore/gps
Helix Blaž Hrastnik https://github.com/helix-editor/helix
IntelliJ / JetBrains IDEs Ballerina-Lang Team github.com/ballerina-platform/lsp4intellij
IntelliJ / JetBrains IDEs Guillaume Tâche github.com/gtache/intellij-lsp
Kakoune Ruslan Prokopchuk github.com/ul/kak-lsp
Kate Kate Team invent.kde.org/kde/kate
Moonshine IDE Prominic github.com/prominic/Moonshine-IDE
Oni Oni github.com/onivim/oni
Qt Creator Qt Project code.qt.io/cgit/qt-creator
VSCode Microsoft github.com/microsoft/VSCode
multilspy Microsoft github.com/microsoft/monitors4codegen
vim Yegappan Lakshmanan github.com/yegappan/lsp
Neovim Neovim Team github.com/neovim/neovim
vim/neovim Nate Bosch github.com/natebosch/vim-lsc
vim/neovim Prabir Shrestha github.com/prabirshrestha/vim-lsp
vim/neovim Junfeng Li github.com/autozimu/LanguageClient-neovim
vim/neovim w0rp github.com/w0rp/ale
vim/neovim Qiming zhao github.com/neoclide/coc.nvim
Sublime Text Tom van Ommeren github.com/sublimelsp/LSP
MS Monaco Editor TypeFox github.com/TypeFox/monaco-languageclient

Work in progress
Atom GitHub github.com/atom-community/atom-languageclient
CodeMirror Wylie Conlon github.com/wylieconlon/lsp-editor-adapter
CodeMirror 6 Mahmud Ridwan github.com/FurqanSoftware/codemirror-languageserver
Emacs Corey Richardson github.com/sourcegraph/emacs-lsp
Sublime Sourcegraph github.com/sourcegraph/sublime-lsp
Theia Theia IDE github.com/theia-ide/theia
Spyder IDE Spyder IDE Dev Team github.com/spyder-ide/spyder
Ycmd Ycmd team github.com/Valloric/ycmd
Brackets Adobe github.com/adobe/brackets
JupyterLab Michał Krassowski krassowski/jupyterlab-lsp
Rapunzel Sebastiaan Mathôt opensesame-extension-language_server

Community Discussion Forums


Contact us

Langserver.org is maintained by Sourcegraph.

To suggest additions or to update the status of a project, please file issues or submit PRs on this project at github.com/langserver/langserver.github.io



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