Online Tool Store
JS Obfuscator
Lightly obfuscate JavaScript by renaming local variables and encoding string literals as hex escapes. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
How the JS obfuscator works
- Paste your JavaScript code - a sample loads automatically.
- Toggle variable renaming and string encoding on or off.
- Copy the obfuscated output.
FAQ
What does this obfuscator actually do?
It renames local variables and function parameters to short hex-style names (like _0x001), and encodes string literals into escaped hex character sequences - both applied directly to your code text.
Is obfuscated code truly secure?
No - obfuscation only makes code harder to read at a glance. Anyone with enough patience (or a de-obfuscator tool) can still recover the logic. Never rely on it to protect secrets like API keys.
Will the obfuscated code still run correctly?
For straightforward scripts, generally yes, since renaming is applied consistently and string encoding preserves the original characters - but always test the output before using it in production.
Can I toggle individual obfuscation techniques?
Yes - use the checkboxes to enable or disable variable renaming and string encoding independently.
How we compare
| Feature | Online Tool Store | Manual renaming | Production build-tool minifier |
|---|---|---|---|
| Instant, no build setup | ✓ | ✗ | ✗ |
| Toggleable techniques | ✓ | ✗ | ✓ |
| Full AST-based transformation safety | ✗ | ✗ | ✓ |
A quick way to demonstrate or lightly obscure a small script - for production-grade obfuscation, use a dedicated build-tool plugin.