The modern all-in-one toolchain
The modern, all-in-one toolchain. Biome is a fast formatter and linter written in Rust that handles JavaScript, TypeScript, JSON, CSS, and more with a single tool.
Configuration
Simple configuration files which extend the Ultracite configuration, giving you control over each aspect of linting and formatting.
Each config file is designed to be minimal while providing maximum coverage through Ultracite presets.
{ "$schema": "./node_modules/@biomejs/biome/configuration_schema.json", "extends": [ "ultracite/biome/core", "ultracite/biome/react", "ultracite/biome/next" ]}Why choose Biome?
The modern, all-in-one toolchain. Biome is a fast formatter and linter written in Rust that handles JavaScript, TypeScript, JSON, CSS, and more with a single tool.
Lightning fast
Written in Rust, Biome can format a large codebase in milliseconds.
All-in-one toolchain
No more juggling ESLint, Prettier, and other tools. Biome handles formatting and linting in a single pass.
287 preconfigured rules
Covers accessibility, complexity, correctness, performance, security, style, and suspicious patterns.
Multi-language support
Natively supports JavaScript, TypeScript, JSX, TSX, JSON, JSONC, CSS, GraphQL, and HTML.
Smart sorting
Automatically organizes imports and JSX attributes, plus sorts Tailwind CSS classes.
Zero dependencies
Biome has no JavaScript dependencies. One binary does everything with consistent behavior.
See how to migrate to Ultracite
Watch some popular YouTubers use Ultracite to lint and format their code.
Trusted by top companies
And used by thousands of open source projects.
What the community is saying
Here's what some of the most innovative and forward-thinking developers in the React ecosystem have to say about Ultracite.
