biome
Biome
Biome (formerly Rome) is a unified toolchain. It replaces Prettier and ESLint. v2.0 (2025) adds a plugin system (GritQL) and multi-file analysis.
When to Use
- Greenfield Projects: Start with Biome for instant linting/formatting.
- CI Speed: It lints a monorepo in milliseconds.
- Simplicity: One config file
biome.json.
Core Concepts
Formatter
97% compatibility with Prettier.
Linter
100+ rules. fast, informative diagnostics.
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