Extensions
Cleaner Pro - Clear Cache & History
Best way to clear cache and Opera browsing data!
Super Auto Refresh
Auto-refresh (reload) pages, on a selected interval. NO ADs. SUPER EASY.
Font Finder
An easy-to-use font inspector to get CSS styles of the selected element
Random password generator
A simple random password generator for Opera browser
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
RestMan
RESTMan is a browser extension to work on http requests.
Cookie-Editor
Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
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
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/
NsLookup - Find DNS Records
A simple and powerful tool for querying DNS records
SEO-tools
SEO-tools - information about domains, site audit for SEO errors, as well as technical audit of any page. Over 100 online services
Clone in VS Code
Clone any GitHub, GitLab or Bitbucket repository in Visual Studio Code
SelectorsHub
xPath plugin to auto generate, write and verify xpath & cssSelector.
(X)HTML5 Checker
A small extension to validate the markup of current tab
Monitorito
This extension creates a real-time visualisation of your browsing activity
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
FullScreen for Opera
Fullscreen, #1 Zoom and Dark Mode more options will get in one
EditThisCookie
EditThisCookie is a cookie manager. You can add, delete, edit, search, protect and block cookies!
Blendup
A tool for web developers to preview blend modes on different page elements.
Web Capture for Jira
Take a screenshot, annotate it and upload directly to Jira.
TestCase Studio
TestCase Studio record the user actions performed on a web application in English Sentences.
Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
AMP Validator
Automatically checks each page for AMP validation.
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
JSON Formatter & Beautifier
makes it simple to read JSON Code for browser
Octotree
GitHub on steroids
Design Mode
Edit any page's content by switching to design mode, where you can modify the content and drag images around like a Word Editor
Involta Short links
Short link service
JavaScript QR Code
Make QR Codes in JavaScript
Website Links Checker
This tool helps you check all links from a page you are currently viewing.