How to pretty-print minified or jumbled JavaScript

1. Paste the JavaScript

   Drop the minified or messy source into the "JS" field. The tool understands ES modules, JSX-free TypeScript, async/await, optional chaining — modern syntax in general. Files with `<script>` wrappers won't work; paste just the code.

2. Press Run

   Result returns a single `formatted` field with consistent semicolons, two-space indentation, and one statement per line. String quotes are normalised to whichever style your input mostly used; comments are preserved verbatim.

3. What it doesn't do

   No linting, no rule enforcement (no-unused-vars, etc.), no AST-level refactor. To enforce a style across a codebase use prettier or eslint --fix in your build. This tool's a one-shot pretty-printer, not a stylesheet enforcer.

4. Round-trip safety

   Formatted JS executes identically to the input — semantics are preserved. Re-minify before deploy with terser or esbuild; the formatted form is for humans, not for the wire.