Browserling - Cross-browser testing
Cross-browser test websites in the most popular browsers such as Internet Explorer, Edge, Chrome, Firefox, Safari and Opera. Try for free!
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.
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
Click on any HTML element to get the font info in a popup
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
GitHub code tree on steroids
PDF API HTML5
Modify Header Value
Add, modify or remove a header for any request on desired domains.
View all HTTP Requests and Responses sent between the Web browser and the Web server.
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, ...
Browse JSON like you do it in Finder.
This extension allows you to add your own custom website specific CSS style sheets.
Custom Style Script
SEO TOOLS - YATEO
Opens all the essential tools for SEO in one click.
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
Use Redux DevTools in the DevTools
Определение CMS - iTrack
Расширение для определения CMS сайта
Website Color Changer
Extends the Developer Tools, adding a sidebar for colors manipulation
This extension is only made for Pakistan Hajj Mission - Medina. It works on Data Entry website and this is Developed by Hamza Mughal
Get Thumbnails or Image to video YouTube
Make thumbnail previews or images from YouTube videos
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Remove cookie(s) for the current domain
Remove cookie(s) for the current site with just one click
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
Quickly view the HTTP headers of the current tab.
Internet users feedback about the sites
OctoLinker is the easiest and best way to navigate between files and projects on GitHub.com. Files containing the following keywords will now have links that redirect you either to the relative file or to the projects GitHub page. Depending on the value, it may redirect you to an external website like a manual page or another service.
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
Google Analytics Debugger
A browser extension for debugging Google Analytics tracking code
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
Novibyte Issues Plugin
Jira Issues Management