Prettier is an opinionated code formatter that enforces a consistent style across codebases. It supports JavaScript, TypeScript, CSS, HTML, Markdown, JSON, YAML, and many other languages through built‑in support and plugins. It formats code automatically via CLI, editor integrations, and API usage, ensuring deterministic output and reducing formatting debates. It respects configuration files and can be set to format on save, with options for print width, tab width, trailing commas, and other style choices. It can be extended with plugins and integrates with a wide range of tooling ecosystems.

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Prettier

Automatically formats code with consistent, language-agnostic style.

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