Code Formatter — Prettier Online
Free online code formatter powered by Prettier. Format JavaScript, TypeScript, HTML, Vue, CSS, SCSS, JSON, YAML, Markdown, and GraphQL with customizable options. No sign-up required.
What Is Code Formatter?
This tool uses Prettier, the industry-standard code formatter, to automatically format your code according to consistent style rules. Prettier supports JavaScript, TypeScript, HTML, Vue, CSS, SCSS, Less, JSON, YAML, Markdown, and GraphQL. It removes all original styling and enforces a consistent code style, making your codebase easier to read and maintain.
How to Use This Code Formatter
- Select the programming language from the dropdown menu.
- Paste your unformatted code into the input area, or click Load Sample to try an example.
- Adjust formatting options: tab width, print width, semicolons, and quote style.
- Click Format Code to format your code using Prettier.
- Copy the formatted output with the Copy button.
Common Use Cases
- Quickly Format Messy Code — Paste code from Stack Overflow, GitHub issues, or chat messages and instantly format it for readability.
- Standardize Code Style — Ensure consistent formatting across your team by using the same Prettier configuration.
- Format Config Files — Pretty-print JSON, YAML, and other configuration files for easier editing and review.