Tafoegings
Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4
Font Inspector
Click on any HTML element to get the font info in a popup!
Internet Speed Test
Test your internet connection speed (upload and download) from a toolbar panel
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
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!
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
CSSViewer
CSSViewer
SeoQuake extension
SEOquake is a free plugin that provides you with key SEO metrics, along with other useful tools such as SEO Audit and many others
Disable Cookies
Disable cookies for current domain.
Gridify - Keyboard Link Selector
Select any link, image, input box, or a selectable region on the current page without using the mouse just by a few keyboard hits
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
JSON Formatter & Beautifier
makes it simple to read JSON Code for browser
Octotree
GitHub on steroids
Picture in Play
Indicates whether the `picture` element is in use on a page.
HypeStat Analyzer
Check any website's traffic
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
Modify Header Value
Add, modify or remove a header for any request on desired domains.
Copy Title And Url
Copy the title and url in markdown, pukiwiki, html format.
Rabbit URL Opener
Rabbit URL Opener (Rahul Digital) - Bulk URL's Opener Extension just lets you open multiple URLs at once. More about Rabbit URL Opener http://rahuldigital.org/url-opener/ http://rahuldigital.com/url-opener/
Image Resizer
Rescale multiple images into different sizes in a single step
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
sha1 hash generator
SHA1 hash generator (offline mode)
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.
Squeezeimg - convert & compress images, WEBP, JP2
This extension will optimization image a page using Squeezeimg
TeamCity Notifier
Shows notifications about various events in TeamCity
TwicPics Companion
Using TwicPics has never been so easy!
Stethoscope
Check the health of a github repo with one easy step.
IP Geolocation Lookup
IP Location Lookup by ipwhois.io
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
Network Information
Useful information about your system's connection including, type, speed, and rtt.
(X)HTML5 Checker
A small extension to validate the markup of current tab
GrabzIt Web Scraping Assistant
Create Web Scrapes online easier than ever before with GrabzIt's Web Scraping Assistant.