Free File Sender
Free file transfer
Sidebar Sticky Note
Free HTML5 Sidebar Sticky Notes
Online Image Convert
Quick and easy access to online image convert.
A small extension to validate the markup of current tab
Basic photo editing tools. Get online image with context menu to edit with basic tools
Clear your cache and browsing data with a single click of a button.
Popup Download Manager
A popup Download Manager for your Opera browser
Scanning website for vulnerable js libraries
Online HTML or PDF Converter
Quick and easy access to document online convert.
Show my Password
a basic add-on to show all your passwords in web pages
Edit and make beautiful formulas in your Browser
An essential and practical application for free-hand drawing and for optical character recognition in multiple languages.
Save Wiki search result rapidly in html and in pdf or print in Google Cloud
Interactive world visa map
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Window Performance Test
Get accurate performance timing for any page with this extension
Logic Circuit Diagram
An extension for your browser Opera to build your diagram logic circuit
Copy As Plain Text
Copy as plain text the content of web pages with rapid preview using context menu
HTML5 Image Converter
An essential and practical application for free-hand drawing and for the conversion of images in multiple formats.
CSS3 Button Maker
Is CSS button code generator free easy tool that allows you create beautiful and elegant CSS web buttons in few clicks
Hide To Print
Hide html element to Print web page
Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu
Check Wordpress Version
WordPress Vulnerability Scanner - Scan for vulnerabilities, version, themes, plugins and much more!
Quick Check List
Edit your to do list with this Opera add-on
Save text to File
Useful addon to save text content of web page in some commons file type for the text editors
PunyCode Domain Detection
This extension attempts to detect PunyCode domain phishing attack
Chess Game WebExtension based on chessboard3.js, chess library for chess move generation/validation and more
sunlight phases, sunrise, sunset, dusk and dawn times calculator
HTML5 Editor with CSS, JS, HTML validator and beautify code
Web Security Audit
Identifies common vulnerabilities in websites as you browse the web.
Weather forecast widget with Map and HTML5 Geolocation