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A quick way to understand who this helps, what it solves, and where it connects next.
Developers making obfuscated JavaScript readable.
Using the javascript deobfuscator without installing anything or signing up.
Capture javascript-deobfuscator intent with a fast, browser-side tool that runs 100% locally.
Cleanor Labs
These sections explain the job in plain language and set expectations for what the tool should do well.
This JavaScript deobfuscator helps you read code that has been obfuscated or minified. It decodes common escape sequences such as \xNN and \uNNNN back to plain characters, unpacks String.fromCharCode sequences into readable strings, and then re-indents the result with a beautifier so the structure is clear. It works entirely in your browser, so nothing is uploaded. One honest limitation: it cannot recover original variable and function names that a minifier permanently replaced with short tokens. It restores formatting and decodes strings, but names lost to minification stay lost.
Short answers for the questions people usually have before trying a utility like this.
No. When a minifier renames variables to short tokens like a or _0x1, the original names are gone for good. This tool re-indents and decodes strings, but it cannot invent the names back.
It handles hex and unicode string escapes, String.fromCharCode sequences, and whitespace minification. Heavily packed or control-flow-flattened code may only be partially readable.
No. Deobfuscation runs locally in your browser, so you can safely paste private or sensitive scripts without anything being uploaded.
Every tool on Cleanor is free with no sign-up, no credits, and no limits. Files are processed privately in your browser. Looking for on-device phone cleanup and Premium features? That lives in the Cleanor app.
Decode \xNN and \uNNNN escapes, unpack String.fromCharCode sequences, and re-indent minified JavaScript so it is readable again. It cannot restore original variable names lost to minification.
Processed locally in your browser. Minified names cannot be recovered.