Utilities
JavaScript Obfuscator
Paste JavaScript on the left, hit Run, copy text that matches the job: sorted, slugged, hashed, or compared. No Node, no pip, no Docker for a five-minute job. That is the javascript obfuscator.
Drop a file on the left. Drafts stay in this browser. Shortcut: Ctrl or Cmd + Enter to run.
How this javascript obfuscator works
- Paste or drop a .js file into the input on the left.
- Flip options if you see them (comments, indent, case). Defaults are the safe ones.
- Hit Run, or Ctrl / Cmd + Enter. Leave “Process on server” off unless you mean it.
- Read the status line, then copy, download, or jump to a related tool.
What this javascript obfuscator is for
The file is already in front of you. You need to transform it without opening a whole IDE profile. Paste, run, copy. Typical timing: the editor is overkill and a CLI is not open yet.
You walk away with text that matches the job: sorted, slugged, hashed, or compared.
What it will not pretend to be
This is not a security product. Obfuscation is delay, not protection. JavaScript minify has to respect strings, comments, and (ideally) regex literals. A blunt “delete all spaces” pass will corrupt code. WebBeautify uses a conservative pass, not a full compiler like Terser.
By default nothing leaves the tab. Tick “Process on server” only if you want to compare results or use gzip numbers that match the server library.
A practical way to use it
Drop a .js file onto the input or paste. Flip options if they are there. Run. Read the status line. Copy or download. Drafts stay on this device so a refresh does not punish you.
When you are done, hop a related tool instead of starting over: minify and beautify toss the file back and forth, format and validate often share a parser, convert wants valid input first.
The small print that saves a round-trip
JavaScript minify has to respect strings, comments, and (ideally) regex literals. A blunt “delete all spaces” pass will corrupt code. WebBeautify uses a conservative pass, not a full compiler like Terser.
You searched “javascript obfuscator online.” You got an editor, not a login wall. That is the deal.
Frequently asked questions
Does obfuscating JavaScript hide secrets?
No. It raises the cost of casual reading. A determined person pretty-prints, searches, and sets a breakpoint. API keys in JS are already public. Move secrets to a server.
What does a light obfuscator actually do?
Often: pack the source as a string and eval it, or rename locals. Example vibe: wrap console.log("hi") in eval(atob("...")). That is a curtain, not a vault.
Fun fact?
Fun fact: every “unobfuscator” starts with “run it and print what it built.” If the engine can execute it, a human can eventually read it. DRM for JS is a marketing genre.
Will obfuscation break my code?
Yes if you depend on fn.name, toString(), or dynamic eval of your own source. Also if the wrapper assumes a browser atob. Test the output. Then test it again in Safari.
Obfuscate vs minify vs source maps?
Minify for size. Obfuscate for delay. Source maps for debugging (do not put maps of secrets on the live site if you are shy). You can minify without obfuscating. Please do.
Is eval illegal in CSP?
A strict Content-Security-Policy may ban eval. Packed obfuscators that eval the payload will die on those pages. That is a feature of CSP.
Should libraries be obfuscated?
Open source cannot be. Your app code: usually minify is enough. Obfuscation makes support harder and security theater louder.
Example of a honest warning?
If the output looks like (function(_w){eval(atob(_w))})("...."), assume anyone can Base64-decode _w in one minute. Because they can.