
How to use the JSON Formatter & Validator
Format, beautify, validate and minify JSON with clear error messages and line numbers.
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Remove comments and whitespace from JavaScript to reduce file size, while keeping strings and regexes intact.
A safe, lightweight JavaScript minifier. It removes comments and unnecessary whitespace but keeps line breaks where JavaScript's automatic semicolon insertion needs them, and never touches strings, template literals or regular expressions. For production builds with renaming and dead-code removal, use a bundler like esbuild or Terser.
Here is the whole process, step by step. It takes less than a minute from opening the tool to seeing your result.
Press the "Copy output" button and your result appears on the page.
Everything runs in your browser — your files and text never leave your device.
Yes. The JavaScript Minifier on Apex Tool Station is 100% free with no signup and no watermark. Browser tools have no usage limits.
No. Everything runs locally in your browser using JavaScript. Your files and text never leave your device, which makes it safe for private documents.
Yes. The tool works on any modern browser on Android, iPhone, Windows, Mac and Linux.
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The JavaScript Minifier is free, with no signup and no watermark. Open it and try it now. Paste any text and watch the result update as you type.

Format, beautify, validate and minify JSON with clear error messages and line numbers.
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Encode text to Base64 or decode Base64 back to text, with full UTF-8 and URL-safe support.
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Percent-encode text for safe use in URLs and query strings, or decode encoded URLs.
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Escape <, >, &, quotes and special characters into HTML entities, or decode entities back.
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