Minify JavaScript to reduce file size, or beautify minified JS back into readable, indented code.
This performs safe, conservative minification — removing comments and whitespace without renaming variables. For maximum compression in production builds, a full build-tool minifier like Terser or esbuild is recommended.
No, this tool only removes comments and unnecessary whitespace, keeping all variable and function names unchanged for safety and easier debugging.
Yes, use the Beautify button to reformat minified or compressed JS with proper indentation for readability.
This tool compresses JavaScript code by removing comments and unnecessary whitespace to reduce file size, or reformats minified JavaScript back into readable, indented code. It performs safe, conservative transformations without renaming variables or restructuring logic.
This minifier removes comments and collapses whitespace to reduce file size while keeping your code's structure, variable names, and logic completely intact — a safe, predictable transformation that's easy to verify and debug if something looks wrong. It does not perform variable renaming, dead-code elimination, or other advanced optimizations that full build-tool minifiers like Terser, UglifyJS, or esbuild apply. Those tools parse JavaScript into a full syntax tree and can achieve significantly smaller output, but require a build pipeline rather than working as a simple paste-and-convert browser tool. For quick, safe compression of a script without a build process, this tool's conservative approach is a practical middle ground.
All processing happens directly in your browser — your JavaScript code is never sent to a server.