Code Tools

Online Minifier

Online Minifier — an online minifier that compacts JavaScript in the browser. Nothing is uploaded, it works offline once loaded, and there is no sign-up.

Client-sideRuns entirely in your browser — your data never leaves your device.

Online Minifier is a free Code Tools utility that runs entirely in your browser — nothing you enter is uploaded.

JavaScript input
Minified JavaScript

How to use Online Minifier

  1. Paste the text you need to minify into the input box.
  2. Watch the output update instantly while you adjust the text.
  3. Finish by choosing Copy to take the output with you.

About this tool

There is no server behind Online Minifier. Online Minifier handles your input locally and returns the result instantly, with no sign-up.

It is designed to do one job well and stay out of your way. It behaves the same on desktop and mobile, with nothing stored remotely.

Frequently asked questions

How do I use Online Minifier?

Online Minifier runs entirely on your device: add your input, and it minifies it locally in real time.

Do I need an account for Online Minifier?

No — Online Minifier needs no account, sign-up or installation.

Where is my data processed by Online Minifier?

Entirely in your browser — Online Minifier keeps your data on your own machine and sends nothing anywhere.

Does Online Minifier work offline?

Once the page has loaded, Online Minifier keeps working with no network connection.

Related code tools