Extension source viewer
View source code of extensions in the Chrome Web Store, Firefox or Opera addon gallery. Has button to install from Chrome Web Store.
Click on any HTML element to get the font info in a popup!
Picture in Play
Indicates whether the `picture` element is in use on a page.
A REST client for the rest of us
Disable cookies for current domain.
Responsive Web Design Tester
Responsive Web Design Tester is a quick and easy way to test your responsive website.
Quick SEO analysis of websites and pages, designed for webmasters and SEOs.
GitHub on steroids
NsLookup - Find DNS Records
A simple and powerful tool for querying DNS records
OCR - Image Reader
A powerful optical character recognition (OCR) extension to capture and convert images to text
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
This extension allows you to add your own custom website specific CSS style sheets.
Custom Style Script
Random password generator
A simple random password generator for Opera browser
Live editor for CSS and LESS - Magic CSS
Live preview of CSS/LESS code with an in-page editor. Autocomplete, convert LESS to CSS, beautify, minify, CSS reloader, linter, ...
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
SEO-tools - информация о доменах, аудит сайтов на SEO ошибки, а также технический аудит любой страницы. Свыше 100 онлайн сервисов
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
PDF API HTML5
A browser extension that brings a new GitHub experience
Get Thumbnails or Image to video YouTube
Make thumbnail previews or images from YouTube videos
ChroPath for Opera
AutonomIQ offers a developers platform ChroPath to generate and validate unique selectors like relative xpath with iframe support
Open in GIMP photo editor
Adds context menu items to send image links and image files directly to the GIMP photo editor
The tool to overlap your website layout with a grid.
Quickly view the HTTP headers of the current tab.
Shows the response times and uptime of a desired server. Useful to see how performs internet or a wireless access point.
The simplest extension for working with web fonts