Biome Has a Free Formatter and Linter That Replaces ESLint and Prettier in One Tool

Biome is a fast formatter, linter, and more — written in Rust. It replaces ESLint + Prettier with a single tool that is 35x faster.

What You Get for Free

• Formatter — Prettier-compatible, 35x faster
• Linter — 270+ rules from ESLint and others
• Import sorting — automatic
• Single config — one tool, one config file
• LSP — editor integration
• JS/TS/JSX/TSX/JSON/CSS — all supported
• Zero config — works out of the box

Quick Start

npm i -D @biomejs/biome
npx biome init
npx biome check --write .

biome.json

{
  "formatter": {
    "indentStyle": "space",
    "indentWidth": 2
  },
  "linter": {
    "rules": {
      "recommended": true
    }
  }
}

Biome vs ESLint + Prettier

Feature	Biome	ESLint + Prettier
Speed	35x faster	Baseline
Config files	1	2-3
Languages	JS/TS/JSON/CSS	JS/TS (plugins)
Dependencies	1	20+

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Need dev tooling help? Check my work on GitHub or email [e-mail] for consulting.