Language specific plugins

Nvim-lspconfig is meant to implement basic configuration and settings for most language servers. The beauty of the language server protocol, is most language servers should expose their entire functionality without any special per-server treatment.

Some servers send requests outside of the language server protocol specification to extend the functionality of the protocol. Eclipse JDTLS is one such example. An ecosystem of per language plugins is forming around neovim's core implementation to provide an enhanced experience compared to nvim-lspconfig. We recommend you install these plugins if you are using the language in question. Here are some recommendations:

LSP/Language	Plugin	Description
jdtls	nvim-jdtls	Java's Eclipse JDT
Metals	nvim-metals	Scala's Metals
flutter	flutter-tools.nvim	Flutter
lua-language-server	lazydev.nvim	Neovim api and docs support for lua
luau-lsp	luau-lsp.nvim	A luau-lsp extension to improve your experience in neovim.
rust-analyzer	rust-tools.nvim	Deprecated - Rust's rust-analyzer
rust-analyzer	mrcjkb/rustaceanvim	rust-tools.nvim fork; no lspconfig dependency
rust-analyzer	vxpm/ferris.nvim	A rust-analyzer client plugin geared towards people who prefer to set up the LSP client manually
rust-analyzer	crates.nvim	Rust - helps managing crates.io dependencies in Cargo.toml
tsserver	typescript-tools.nvim	Lua port of the typescript VSCode plugin, adding many off-spec featuers
tsserver	typescript.nvim	Deprecated - Support for tsserver's off-spec features
Lean Theorem Prover	lean.nvim	Lean; Note: will automatically call setup{}
jsonls	SchemaStore.nvim	Note, this provides schemas for jsonls but still depends on lspconfig.
ltex-ls	grammar-guard.nvim
omnisharp	omnisharp-extended-lsp.nvim	Add support for decompiling.
omnisharp	com.cloudedmountain.ide.neovim	Add support for unity.
csharp_ls	csharpls-extended-lsp.nvim	Add support for decompiling.
clangd	clangd_extensions.nvim	Clangd's extra features (inlay hints, type hierarchy, ...etc
F#	Ionide	F# Vim plugin based on FsAutoComplete and LSP protocol
deno	deno-nvim	Deno's lsp
Haskell's haskell-language-server	haskell-tools.nvim	Haskell LSP client configuration; note: doesn't require nvim-lspconfig
angularls	ng.nvim	custom features, e.g. go to component template, go to component from template, etc.
ltex-ls	ltex_extra.nvim	support for actions such as "add to dictionary"