quick-lint-js

200× faster than ESLint, quick-lint-js gives you instant feedback as you code. Find bugs in your JavaScript before your finger leaves the keyboard. Lint any JavaScript file with no configuration.

Try it out in your browser.

Install quick-lint-js

Latest version: 0.5.0 (beta) (released October 12, 2021)

• install Vim plugin
• install VS Code plugin
• install CLI
• install CLI on npm

see all installation options

Features

feature		quick-lint-js	ESLint	JSHint	RSLint	Deno
speed		🚀 quick	🐇 capable	🐢 slow	🐇 capable	🐢 slow
license		free GPLv3	open source MIT	open source MIT	open source MIT	open source MIT
easy npm install		✅	✅	✅	❌ *	❌
easy setup		✅ zero config	❌ config or init	❌ config	✅ config optional	✅ zero config
JSX		❌ *	✅ †	❌	❌ *	✅
TypeScript		❌ *	✅ †	❌	❌ *	✅
lint rules		minimal	zillions	some	some	some
stable		❌	✅	✅	❌	✅
feature		quick-lint-js	ESLint	JSHint	RSLint	Deno
VS Code		✅	✅	✅	✅	✅
Vim		✅	✅	✅	❌	✅
WebStorm		❌	✅	✅	❌	✅
Sublime Text		❌ *	✅	✅	❌	✅
Notepad++		❌	✅	✅	❌	❌
Atom		❌	✅	✅	❌	✅
Emacs		✅	✅	✅	❌	✅
Codespaces		❌	❌	❌	❌	❌
LSP server		✅	✅	❌	✅	✅