stack VS haskell-language-server

Compare stack vs haskell-language-server and see what are their differences.


The Haskell Tool Stack (by commercialhaskell)


Official haskell ide support via language server (LSP). Successor of ghcide & haskell-ide-engine. (by haskell)
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stack haskell-language-server
23 76
3,708 2,046
0.7% 2.7%
7.9 9.7
5 days ago 4 days ago
Haskell Haskell
BSD 3-clause "New" or "Revised" License Apache License 2.0
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of stack. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-04-26.


Posts with mentions or reviews of haskell-language-server. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-05-03.
  • Monthly Hask Anything (May 2022)
    4 projects | | 3 May 2022
    There is work in progress to integrate the REPL into the HLS (basically what provides IDE functionality to vscode):
  • My GHC dev environment with vscode remote & docker
    2 projects | | 28 Apr 2022
    FROM ARG UID ARG GID RUN \ curl -SsL | sudo tar -C /usr/local/bin -xzf - && \ sudo chown root:root /usr/local/bin/fixuid && \ sudo chmod 4755 /usr/local/bin/fixuid && \ sudo mkdir -p /etc/fixuid && \ printf "user: ghc\ngroup: ghc\n" | sudo tee /etc/fixuid/config.yml USER ${UID}:${GID} RUN fixuid USER ghc RUN \ sudo rm -r \ /etc/fixuid \ /usr/local/bin/fixuid \ /var/run/fixuid.ran ENV PATH=${PATH}:/home/ghc/.cabal/bin:/opt/ghc/9.2.2/bin RUN \ sudo apt update && \ sudo apt install -y \ bash-completion && \ cd /tmp && \ git clone && \ cd haskell-language-server && \ cabal --project-file=cabal-ghc92.project update && \ cabal --project-file=cabal-ghc92.project install && \ rm -rf /tmp/*
  • This is confusing...
    1 project | | 26 Apr 2022
    You can you typed holes with HLS, but sometimes there are performance issues:
  • [ANN] Pre-release VSCode-Haskell 2.0.0
    3 projects | | 5 Apr 2022
    The major issue is related to Template Haskell. If you use the current HLS releases, you notice the message "This binary is not built with Template Haskell support". We added this message because the way static binaries work is just not cross-plattform. What might work on ubuntu, doesn't reliably work on other distros. This lead to a number of dynamic linking issues, impossible to understand error messages and many more. See for example this:
    3 projects | | 5 Apr 2022
  • can you recommend active Haskell open source projects?
    16 projects | | 30 Mar 2022
  • Now that Stackage supports GHC 9.2, is it easy to build ARM executables on macOS?
    1 project | | 29 Mar 2022
    The releases page has macOS-9.2.1 but that's Intel, and it has aarch64- but that's GHC 8.
  • Configurando ambiente de desenvolvimento haskell no emacs
    2 projects | | 3 Mar 2022
    Podemos baixar haskell-language-server e haskell-language-server-wraper acessando a página abaixo: Para descobrir a versão do GCH que está sendo usada, digite a seguinte linha no terminal:
  • [ANN] GHCup
    1 project | | 26 Feb 2022
    The main motivation of this release is making it compatible with the new binary distribution of HLS, which is upcoming soon and will be a dynamically linked distribution. Also see
  • Any of you ever get the feeling that Haskell is just every language?
    2 projects | | 22 Feb 2022
    It’s almost supported in Haskell Language Server now too- follow for it ^^

What are some alternatives?

When comparing stack and haskell-language-server you can also consider the following projects:


coc.nvim - Nodejs extension host for vim & neovim, load extensions like VSCode and host language servers.

Cabal - Official upstream development repository for Cabal and cabal-install

lsp-mode - Emacs client/library for the Language Server Protocol

neovim - Vim-fork focused on extensibility and usability

hie-bios - Set up a GHC API session for various Haskell Projects

vscode-haskell - VS Code extension for Haskell, powered by haskell-language-server

ghcid - Very low feature GHCi based IDE

ormolu - A formatter for Haskell source code

lsp-haskell - lsp-mode :heart: haskell

ghc-proposals - Proposed compiler and language changes for GHC and GHC/Haskell

castle - A tool to manage shared cabal-install sandboxes.