haskell-language-server VS ormolu

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


Official haskell ide support via language server (LSP). Successor of ghcide & haskell-ide-engine. (by haskell)


A formatter for Haskell source code (by tweag)
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haskell-language-server ormolu
53 2
1,816 690
4.6% 4.9%
9.7 8.5
about 8 hours ago 6 days ago
Haskell Haskell
Apache License 2.0 BSD 3-clause "New" or "Revised" License
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 haskell-language-server. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-11-29.


Posts with mentions or reviews of ormolu. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-04-27.

What are some alternatives?

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

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

fourmolu - A fourk of ormolu that uses four space indentation and allows arbitrary configuration. Don't like it? PRs welcome!

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

hadolint - Dockerfile linter, validate inline bash, written in Haskell

ihaskell - A Haskell kernel for IPython.

hlint - Haskell source code suggestions

lsp-haskell - lsp-mode :heart: haskell


fugue - A recapitulated prelude with minimal dependencies and profligate exports.

cardano-sl - Cryptographic currency implementing Ouroboros PoS protocol

normalize-imports - Sort and align Haskell import statements

homebrew-core - 🍻 Default formulae for the missing package manager for macOS (or Linux)