Tafoegings
Picture in Play
Indicates whether the `picture` element is in use on a page.
Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu
View Page Source
Get access to the page source with the click of a button
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/
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.
PixelGrid
The tool to overlap your website layout with a grid.
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
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.
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
Extensions for Mermaid
A browser extension for Chrome, Opera & Firefox that adds Mermaid language support to GitHub. A fork from the not updated GitHub + Mermaid extension.
Random password generator
A simple random password generator for Opera browser
Open in GIMP photo editor
Adds context menu items to send image links and image files directly to the GIMP photo editor
Polypad (Open in App)
Polypad Open in App.
Stethoscope
Check the health of a github repo with one easy step.
Network Information
Useful information about your system's connection including, type, speed, and rtt.
CF-Predictor
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
Colored favicons for Salesforce
Make the favicon in different color based on which salesforce instance your are loggen into.
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
PageSpeed Insights
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
MultiPass
Automatically login to Basic Authentication using data based on URL regexp.
retire.js
Scanning website for vulnerable js libraries
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
TwicPics Companion
Using TwicPics has never been so easy!
SEO Nofollow links highlighter
Highlight all nofollow links on any site you want. Excellent for SEO purposes.
Open in Vivaldi
Open current page, link, or all tabs in the Vivaldi browser.
PX to REM and REM to PX
PX / REM bidirectional converter
md5 hash generator
MD5 hash generator (offline mode)
Font Inspector
Click on any HTML element to get the font info in a popup!
JxArşiv | Araçlar
Currency, Meter, Square, VAT, Percentage, Letter, Word Count, Age Calculation and Archives ...
Involta Short links
Short link service