
WhatRuns
Discover what runs a website in one click 🖥️ 🔍
In plain words
WhatRuns is a free browser extension that identifies technologies used on any website with a single click. Designed for developers, designers, and salespeople, it provides instant visibility into website stacks, frameworks, and tools. The extension is available for Chrome and Firefox, enabling users to analyze competitor sites, understand technical implementations, and make informed decisions about technology adoption without leaving their browser.
written from the facts on this page · September 2026
From the sources
https://www.whatruns.com/ is a free technology lookup tool for developers, designers and salespeople to discover the technologies used on any website. Available for free on https://chrome.google.com/webstore/detail/whatruns/cmkdbmfndkfgebldhnkbfhlneefdaaip?hl=en-US and https://addons.mozilla.org/en-US/firefox/addon/whatruns/.
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