JavaScript Formatter, Minifier & Obfuscator
关于 JavaScript Formatter, Minifier & Obfuscator
Our free online JavaScript Formatter, Minifier & Obfuscator reformats your JS with clean indentation, strips comments/whitespace for a smaller production file, or applies a basic obfuscation pass that renames simple local variables.
"Basic Obfuscate" strips comments/whitespace and renames simple local var/let/const declarations to short names - it's a lightweight deterrent, not production-grade obfuscation (no control-flow flattening or string encryption).
The obfuscation mode is a lightweight deterrent rather than production-grade protection - it won't stop a determined reverse-engineer, but it does make casual inspection noticeably harder. All processing happens locally in your browser.
How to Use the JavaScript Formatter, Minifier & Obfuscator
- Paste your JavaScript code into the input box
- Choose format for readable indentation, minify to shrink the file for production, or obfuscate to rename local variables
- Review the processed code in the output panel
- Copy the result and use it in your project or deployment build
Developers use the formatter to make an unfamiliar or minified third-party script readable enough to actually debug. Front-end teams preparing a production build use minify mode to shrink a bundle's file size when a full build tool isn't set up for a quick one-off script. Anyone who wants to make a small client-side script mildly harder to skim, such as a simple form validation trick or a promo countdown, uses obfuscate mode as a light deterrent - not as a substitute for proper server-side protection of anything actually sensitive. Because everything runs locally, none of the pasted code is transmitted anywhere while you work on it.
- Formats JavaScript with clean, readable indentation
- Minifies JS by stripping comments and whitespace to reduce file size
- Applies a lightweight variable-renaming obfuscation pass
- All processing happens locally in your browser
- Includes unlimited use with a RankWise Tools membership
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Frequently asked questions
Is this a full JavaScript parser like Babel?
No - formatting and minifying use lightweight tokenization rules rather than a full AST parser, so extremely unusual syntax (e.g. regex literals containing braces) can occasionally format imperfectly. It handles typical everyday JS correctly.
How good is the \"Basic Obfuscate\" mode really?
It only renames simple local variable/const/let declarations and strips whitespace/comments - it won't stop a determined reverse-engineer. For real protection, use a proper build-time tool with control-flow obfuscation.
Is my code sent to a server?
No - all processing happens entirely in your browser.
