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Biome
All-in-one JS/TS toolchain — 25x faster than ESLint, replaces ESLint + Prettier, 13K GitHub stars.
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About Biome
Biome is the Rust-based all-in-one JavaScript and TypeScript toolchain that replaces both ESLint (linting) and Prettier (formatting) with a single binary that is 25x faster than ESLint.
Performance benchmark on a 1,000-file TypeScript codebase: Biome formats in 0.18 seconds vs Prettier''s 6.3 seconds (35x faster). Biome lints in 0.31 seconds vs ESLint''s 7.8 seconds (25x faster).
Biome vs ESLint + Prettier: Biome has 350 rules vs ESLint''s 3,000+ (via plugins). Biome has no plugin support. ESLint wins on rule coverage; Biome wins on speed and simplicity.
Zero configuration: `biome check --write .` works out of the box for standard TypeScript projects — no config file required.
Key Features
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Lint + format: check and fix linting and formatting in one command
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25x faster than ESLint: Rust-native execution with no Node.js overhead
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Import sorting: automatic import organization alongside formatting
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Git-aware: only lint and format files that changed in the last commit
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Zero config: biome check --write works on any TypeScript project without config
Pros
- ✓25x faster than ESLint and 35x faster than Prettier — CI lint time from 8s to 0.3s
- ✓One tool replaces ESLint + Prettier — no more managing two configs that conflict
- ✓Zero configuration for standard TypeScript projects — works out of the box
- ✓Written in Rust — a single binary with no Node.js runtime overhead
- ✓Import sorting: automatically organizes imports alphabetically alongside formatting
Cons
- ✗350 rules vs ESLint''s 3,000+ — significantly fewer rules, especially for React and accessibility
- ✗No plugin support — cannot add custom rules (huge ESLint ecosystem is unavailable)
- ✗Relatively new (2023) — less battle-tested than ESLint which has been used since 2013
Who is using Biome?
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Teams who want maximum speed for linting and formatting in CI/CD pipelines
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New projects where ESLint''s plugin ecosystem is not yet required
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Developers who find ESLint + Prettier configuration complex
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Bun or Deno projects where Rust-native tooling is preferred
Use Cases
- →Running biome check --write on a 1,000-file TypeScript codebase in 0.3 seconds vs 8 seconds
- →Replacing .eslintrc and .prettierrc with a single biome.json config file
- →Adding Biome to GitHub Actions to lint and format check in 1 second per CI run
- →Using import sorting to automatically organize imports alphabetically
Pricing
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Open Source : $0/forever — Full toolchain, MIT license, All features, Community support
Pricing details may not be up to date. For the most accurate and current pricing, refer to the official website.
What Makes Biome Unique?
The Rust-based JavaScript/TypeScript toolchain that is 25x faster than ESLint and 35x faster than Prettier — replacing both tools with one binary and zero configuration.
How We Rated It
Performance benchmarks from Biome published benchmarks on a 1,000-file TypeScript codebase.
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Accuracy and Reliability 4.6/5
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Ease of Use 4.8/5
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Functionality and Features 4.4/5
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Performance and Speed 4.9/5
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Customer Support 4.3/5
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Value for Money 5.0/5
AI summary
All-in-one JS/TS toolchain — 25x faster than ESLint, replaces ESLint + Prettier, 13K GitHub stars.