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Language server that shows caniuse support percentages right in your editor

2 starsZig

Canipls – see caniuse.com global support percentages as you type

by taylorplewe·Jun 17, 2026·1 point·0 comments
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AI Analysis

●●SolidSolve My ProblemCozy

LSP-based caniuse warnings in-editor when browserslist already exists.

Strengths
  • •Tree-sitter parsing supports HTML, CSS, JS, TSX, Vue, Svelte, and Astro.
  • •Hover any native API to see exact global support percentage instantly.
  • •VS Code and Zed extensions ship today with zero-config setup.
Weaknesses
  • •Cannot track variable types, so method support checks often miss context.
  • •Global percentages don't reflect your actual user browser distribution.
Target Audience

Frontend developers, web teams managing browser compatibility

Similar To

browserslist · caniuse-lite · MDN Browser Compatibility

Post Description

This is a language server I've been working on for a while now, which warns the programmer (or agent) of low browser support for web features (HTML, CSS, JavaScript) right in your editor. You can also hover over almost all web features and get its support percentage and caniuse.com link.

This project is handmade, no AI was used.

Preview images & setup instructions found in the repo README. There are VS Code and Zed extensions.

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