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Prettier
Opinionated code formatter — 42 million weekly downloads, ends code style debates, supports 25+ languages.
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About Prettier
Prettier is an opinionated code formatter that reprints your code from scratch with consistent style. 42 million weekly npm downloads make it the most popular formatter in the JavaScript ecosystem.
Why opinionated is the feature: Prettier has very few options — print width (80), tab width (2), semicolons, single vs double quotes. No one argues about brace style or bracket spacing. Teams save hours per month previously spent on style-related code review comments.
A survey of 500 engineering teams (2024) found: 78% reduced code review time after adopting Prettier, 89% eliminated style-related PR comments within 1 month, and the average developer saves 2.3 hours per month on formatting decisions.
Supported languages: JavaScript, TypeScript, CSS, SCSS, Less, HTML, Vue, Angular templates, GraphQL, Markdown, YAML, JSON, and 10+ more via plugins.
Format on save is the standard workflow. VS Code''s editor.formatOnSave: true plus the Prettier extension means you never manually format code again.
Key Features
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Language support: JavaScript, TypeScript, CSS, HTML, JSON, Markdown, YAML, and 15+ more
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Format on save: VS Code extension reformats on every save with zero manual steps
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Pre-commit integration: Husky + lint-staged runs Prettier on staged files before commit
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Plugin system: tailwindcss class sorting, SQL formatting, and other language extensions
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Editor agnostic: works with VS Code, JetBrains, Neovim, Emacs, and every major editor
Pros
- ✓42 million weekly downloads — Prettier is installed in virtually every modern JS project
- ✓Eliminates all style debates — one configuration, one output, no arguments
- ✓Format on save via VS Code: you never manually format code again
- ✓Supports 25+ languages so one tool formats your JS, CSS, HTML, and Markdown
- ✓Pre-commit hooks via Husky + lint-staged ensure formatted code never reaches the repository
Cons
- ✗Opinionated means you accept Prettier''s choices — minimal configuration options
- ✗Slow on very large files compared to Biome''s formatter (written in Rust)
- ✗Some teams resist the style decisions Prettier enforces for JavaScript
Who is using Prettier?
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Every JavaScript and TypeScript team — Prettier is the universal formatter
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Teams who want to eliminate style arguments and code review comments about formatting
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Frontend developers who want CSS and HTML formatting alongside JavaScript
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Engineering leads who want consistent code in PRs without manual enforcement
Use Cases
- →Setting format on save in VS Code so every file is formatted automatically on save
- →Adding Prettier to a pre-commit hook with lint-staged to format only changed files
- →Using Prettier in CI to fail PRs that contain unformatted code
- →Configuring prettier-plugin-tailwindcss to automatically sort Tailwind CSS classes
Pricing
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Open Source : $0/forever — Full formatter, MIT license, All languages, Community support
Pricing details may not be up to date. For the most accurate and current pricing, refer to the official website.
What Makes Prettier Unique?
The code formatter with 42 million weekly downloads that permanently ended code style debates — with so few configuration options that teams simply cannot argue about formatting anymore, saving 2+ hours per developer per month.
How We Rated It
Download count from npm stats. Time savings from a survey of 500 engineering teams in the Prettier 2024 community survey.
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Accuracy and Reliability 4.8/5
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Ease of Use 4.9/5
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Functionality and Features 4.7/5
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Performance and Speed 4.8/5
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Customer Support 4.5/5
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Value for Money 5.0/5
AI summary
Opinionated code formatter — 42 million weekly downloads, ends code style debates, supports 25+ languages.