JS Obfuscator | JavaScript Tools<br>Skip to content TOOLS_INDEX JS Obfuscator<br>Minify and mangle JavaScript locally. Useful for small snippets and client-side utilities.<br>NEED TEST DATA? OPEN DUMMY JAVASCRIPT
OBFUSCATE MINIFY
SOURCE_INPUT 0 CHARS
RENDERED_OUTPUT COPY<br>// processed JavaScript will appear here ACTION_SUCCESSFUL
MANGLE_LEVEL<br>Mangle level LOCAL_NAMES COMPACT_NAMES STRINGS_ENCODED<br>VALIDATION<br>READY
JS_SIZE<br>0 B
MODE<br>OBFUSCATE
PRACTICAL NOTES<br>Working with JavaScript Obfuscator<br>JavaScript Obfuscator is built to make a script harder to read through identifier and source transformations. It stays focused.<br>A reliable workflow is to use representative input rather than a perfect demonstration sample, review the output beside the original, and repeat the operation with empty values, unusual characters, larger content, and one intentionally broken case, because a tool is most useful when it helps reveal assumptions before those assumptions reach production.<br>This is especially useful for discouraging casual copying and testing how tooling handles altered source. Nothing about the narrow interface removes the need for judgment, but it does make the small operation easier to repeat and explain during a review.<br>Start with JavaScript that already executes correctly and has a safe backup. The page returns transformed code for inspection or controlled distribution, and you can inspect that result before it becomes part of another file, request, document, or application setting.<br>Obfuscation is not encryption and cannot protect secrets that must be delivered to a browser, where a determined user can still inspect runtime behavior. Keep a reversible copy until the final result has been accepted by its destination.
Before you use the result<br>01 Use input that resembles the real format and size.<br>02 Keep the source available while reviewing the result.<br>03 Test an empty value and one deliberately invalid case.<br>04 Review the final output in the system that will consume it.