Wappalyzer

Wappalyzer is a browser extension that uncovers the technologies used on websites. It detects content management systems, web shops, web servers, JavaScript frameworks, analytics tools and many more.

Free Open Source Windows Linux Mac Chrome Firefox

WhatRuns

WhatRuns offers browser extensions that give you information on the technology being used on websites you visit. WhatRuns uses a proprietary recognition algorithm to detect even the latest web technologies and plugins.

Free Web Chrome Firefox

Similar Tech

Similar Tech bring powerful marketing, sales and market-research tools by crawling the web and analysing the technologies behind any site.

Commercial Web

WPThemeDetector

WordPress Theme Detector is a free tool that allows you to find details about a WordPress site's theme and plugins.

Free Web

What Wordpress Theme Is That?

What WordPress Theme Is That is a free online tool allows you to easily detect what WordPress theme a site uses (including parent and child themes). It will also detect...

Free Web

whoiswp

WhoisWP is a fast, intuitive WordPress theme detector that will instantly answer the question "What WordPress theme is that site using?"

Free Web

What CMS

WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.

Free Web