Расширения
Page Edit
Make any webpage into a content editable document and modify it via toolbar popup!
Octotree
GitHub on steroids
FullScreen for Opera
Fullscreen, #1 Zoom and Dark Mode more options will get in one
Fontstorage
Простой способ определить или подобрать шрифт на сайте.
Disable Cookies
Disable cookies for current domain.
Modify Header Value
Add, modify or remove a header for any request on desired domains.
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4
Web Edit
Легко временно редактируйте веб-сайты одним нажатием кнопки.
SeoQuake extension
SEOquake — это бесплатный плагин, предоставляющий данные основных показателей поисковой оптимизации и позволяющий работать с такими полезными инструментами, как SEO-аудит и многие другие
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.
Image Resizer
Rescale multiple images into different sizes in a single step
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!
MultiPass
Automatically login to Basic Authentication using data based on URL regexp.
PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
JSON Formatter & Beautifier
makes it simple to read JSON Code for browser
Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu
Hex Calculator
Perform quick and accurate hexadecimal calculations — addition, subtraction, multiplication, and division with remainder — directly in your Opera browser.
IP Geolocation Lookup
IP Location Lookup by ipwhois.io
NPM Version Stats
Show npm package version usage statistics inline on the npmjs.com package page in the versions tab
Picture in Play
Indicates whether the `picture` element is in use on a page.
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
CSSViewer
CSSViewer
Nextsense PDF Signing Component
Signing PDF document.
Font Inspector
Click on any HTML element to get the font info in a popup!
TeamCity Notifier
Shows notifications about various events in TeamCity
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
Reddit to Mp4 converter | reditor
redditdownloader.us allows users to download Reddit videos with audio in high quality.
Network Information
Useful information about your system's connection including, type, speed, and rtt.
Помощник диагностики
Расширение браузера, сервиса Диагностики
Random password generator
A simple random password generator for Opera browser
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers