scalameta / metals

Scala language server with rich IDE features 🚀

Version Matrix


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See the website:


See the contributing guide:


The current maintainers (people who can merge pull requests) are:


Huge thanks to @dragos for his work on a Scala implementation of the LSP (see: This project helped us get quickly started with LSP. Since then, we have refactored the project's original sources to the point where only a few simple case classes remain.


  • IntelliJ IDEA: the most widely used IDE for Scala using a re-implementation of the Scala typechecker.
  • Scala IDE: Eclipse-based IDE using the Scala Presentation Compiler.

Why Metals?

Metals = Meta (from Scalameta) + LS (from Language Server)