JS Minifier compresses JavaScript code by removing whitespace, comments, and unnecessary characters while preserving functionality. The beautify mode reverses this process, adding proper indentation and line breaks to minified code. The tool displays character count, line count, and compression ratio statistics. It handles ES2015+ syntax including arrow functions, template literals, destructuring, and optional chaining.
Frontend developers optimizing inline scripts, security researchers analyzing minified code, and build engineers evaluating compression ratios. The tool runs entirely in your browser — your data never leaves your device.
Learn more about related topics: Terser, esbuild, Source maps, Tree shaking.
JS Minifier / Beautifier is a free, browser-based developer tool on AIDToolStack. Beautify or minify JavaScript. Strip comments and whitespace with character count. It requires no installation or sign-up and works entirely in your browser.
Yes, completely free. JS Minifier / Beautifier has no usage limits, no account requirements, and no hidden fees. Use it as often as you need.
No, all processing happens locally in your browser. Your data never leaves your device and nothing is sent to any server.
Yes, it works in any modern browser on both desktop and mobile devices. No app download required — just open the page and start using it.
AIDToolStack tools run entirely in your browser with no server processing. This means faster results, complete privacy, and zero downtime. There are no ads blocking your workflow, and everything is free with no sign-up required.
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