WhatRuns is a free browser extension that helps you identify technologies used on any website at the click of a button.

## Discover what runs a website

Unravel a website, any website. WhatRuns shows you pretty much everything that powers a website. Web apps they pay for, CDN they’re hosted on, how they track their visitors, Wordpress plugins, fonts – you name it!

## Follow websites and get notified

Keep up with the pace by knowing when a website starts or stop using a technology. Follow websites, and we'll notify you when that happens.

## Free Chrome extension

No sign-up required. Install and press the magic button. It’s free 😀

## Technology coverage

Thousands of Technologies. Be in the know. Our in-house magicians add anywhere between 50-100 new web apps every day.

Note: the official material explicitly describes a Chrome browser extension and technology updates; it does not state support for other browsers, an API, compliance features, or multilingual support.