Lezer Playground!

Making writing lezer grammars fun since 2022.

Go visit it now!

(The app works fully locally, so there is no difference between the hosted version or running it locally)

Features

• Colorful!! 🌈

• Compiles lezer grammar on the fly

• Runs custom javascript necessary for your grammar

• Explore your syntax tree to debug and style it

• Does not completely break when grammar results in infinite loop!

  (You will have to refresh the page though 🙃)

Usage

Can only be installed with yarn, because I heavily use workspaces…

yarn install

Now you know the drill:

yarn start