Extensions
Fontstorage
The simplest extension for identifying and selecting fonts on a website.
GrabzIt Web Scraping Assistant
Create Web Scrapes online easier than ever before with GrabzIt's Web Scraping Assistant.
Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4
Octotree
GitHub on steroids
Picture in Play
Indicates whether the `picture` element is in use on a page.
Clear Cache
Clear your cache and browsing data with a single click of a button.
Encode Decode HTML
Encode HTML to show it in the HTML pages a code instead of rendered HTML. Decode HTML to convert it back to HTML code
CSS & JS Injector
Easily customize your browsing experience CSS & JS Injector is a tool for developers, designers, and power users. Apply custom CSS styles and JavaScript to specific websites effortlessly. Boost productivity and customize the look, feel, and functionality of websites without altering its source code.
Modify Header Value
Add, modify or remove a header for any request on desired domains.
Disable Cookies
Disable cookies for current domain.
Favicon Stealer
Very simple thing for their job
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
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!
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
NPM Version Stats
Show npm package version usage statistics inline on the npmjs.com package page in the versions tab
Random password generator
A simple random password generator for Opera browser
Web Edit
Easily edit websites temporarily with a click of a button.
JSON Formatter & Beautifier
makes it simple to read JSON Code for browser
Font Inspector
Click on any HTML element to get the font info in a popup!
Page Edit
Make any webpage into a content editable document and modify it via toolbar popup!
IP Geolocation Lookup
IP Location Lookup by ipwhois.io
Hex Calculator
Perform quick and accurate hexadecimal calculations — addition, subtraction, multiplication, and division with remainder — directly in your Opera browser.
Nextsense XML Signing Component
Signing XML document.
Network Information
Useful information about your system's connection including, type, speed, and rtt.
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
JavaScript QR Code
Make QR Codes in JavaScript
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.
Yandex Wordstat Regions
Расширение, возвращает полное дерево регионов РФ в сервис подбора слов Яндекс (wordstat)
CSSViewer
CSSViewer