Code tree for GitHub
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
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!
Click on any HTML element to get the font info in a popup
PDF API HTML5
GitHub code tree on steroids
Modify Header Value
Add, modify or remove a header for any request on desired domains.
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
SEO TOOLS - YATEO
Opens all the essential tools for SEO in one click.
View all HTTP Requests and Responses sent between the Web browser and the Web server.
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
Определение CMS - iTrack
Расширение для определения CMS сайта
Custom Style Script
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, ...
Use Redux DevTools in the DevTools
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
This extension allows you to add your own custom website specific CSS style sheets.
Browse JSON like you do it in Finder.
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.
This extension is only made for Pakistan Hajj Mission - Medina. It works on Data Entry website and this is Developed by Hamza Mughal
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
Internet users feedback about the sites
An extention to show/inspect and analyze fonts in web-pages.
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
Website Color Changer
Extends the Developer Tools, adding a sidebar for colors manipulation
A webpage form filler that populates context specific random test data into forms elements.
Get Thumbnails or Image to video YouTube
Make thumbnail previews or images from YouTube videos
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.