JavaScript Formatter & Minifier

Formatting (beautifying) adds consistent indentation and line breaks to make code readable. Minifying removes whitespace, comments, and optionally shortens variable names to reduce file size — improving load times. Use formatted code in development, minified in production.

Yes. The formatter handles TypeScript type annotations, interface declarations, generics, and JSX syntax. It formats the code structurally without stripping types or transforming JSX — the output is valid TypeScript/JSX ready to paste back into your project.

This tool performs whitespace-only minification — it removes spaces, tabs, and newlines without altering logic or renaming variables. This is safe and reversible. Full identifier-mangling minification (like Terser) requires a build tool, as it modifies variable names.

The formatter uses 2-space indentation by default, which is the most common convention for JavaScript/TypeScript projects. The output follows standard formatting patterns compatible with Prettier default config.

This tool formats one snippet at a time. For bulk formatting across a codebase, use Prettier (prettier --write) or ESLint with the --fix flag. This tool is best for quick formatting of code snippets from API responses, logs, or pasted examples.