Web Developer Tools
About the JavaScript Minifier
The JavaScript Minifier is a free online web developer tool from Toolbench. Compress and mangle JavaScript with Terser. Paste your text and the result updates instantly as you type or change the options.
- Category
- Web Developer Tools
- Price
- Free
- Account
- Not required
- Runs
- Entirely in your browser
How to use the JavaScript Minifier
- Paste or type your text into the input box.
- Adjust the options (compress, mangle names, keep license comments).
- Copy the result, or click “use output” to chain another transformation.
Options
| Compress | On / off (default on) |
|---|---|
| Mangle names | On / off (default on) |
| Keep license comments | On / off (default on) |
Privacy
Everything runs in your browser: what you type or paste is processed by JavaScript on your device, not on a server. The first time you use it, an open-source library is downloaded from the jsDelivr CDN; your input is still processed locally. If you are signed out, nothing is saved at all. If you sign in with Google, your inputs and settings are saved privately to your account so they sync across devices.
Frequently asked questions
Is the JavaScript Minifier free?
Yes. JavaScript Minifier is completely free with no sign-up, no usage limits and no watermarks.
Is my data private?
Yes. The JavaScript Minifier processes everything in your browser. Signed out, nothing is saved; signed in, your inputs sync privately to your own account.
Does it work on my phone?
Yes. Toolbench runs in any modern browser on desktop, tablet or phone — there is nothing to install.
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