Opinionated Code Formatter.

Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.

• Prettier @ GitHub.

Related contents:

• Birth of Prettier @ Vjeux.

The tooling that enables ESLint and Prettier to support TypeScript.

• typescript-eslint @ GitHub.

Related contents:

• Avoiding anys with Linting and TypeScript @ typescript-eslint.

A Next-Gen Node.js + TypeScript Starter Kit for 2025.

Zero-config TypeScript starter for modern Node.js development. ESM, Vitest, ESLint, Prettier. Production-ready in seconds! ⚡

One toolchain for your web project. Format, lint, and more in a fraction of a second.

Biome is a performant toolchain for web projects, it aims to provide developer tools to maintain the health of said projects.

Biome is a fast formatter for JavaScript, TypeScript, JSX, and JSON that scores 96% compatibility with Prettier.

Biome is a performant linter for JavaScript, TypeScript, and JSX that features more than 170 rules from ESLint, TypeSCript ESLint, and other sources. It outputs detailed and contextualized diagnostics that help you to improve your code and become a better programmer!

• Biome @ GitHub.

Related contents:

• Migrating A JavaScript Project from Prettier and ESLint to BiomeJS @ AppSignal.

Unified developer tools for JavaScript, TypeScript, and the web.

Rome unifies your development stack by combining the functionality of separate tools. Single configuration file, amazing performance, and works with any stack.

Rome @ GitHub.