एक्सटेंशन
Vertical Tabs
Manage your tabs in the sidebar!
Web Panel
Navigate to websites in the sidebar.
Sudoku Sidebar
Play Sudoku on Sidebar anytime in your browser! even offline!
Emoji Minesweeper
Play Minesweeper as Emojis!
Sudoku v2
Play Sudoku from sidebar anytime even offline
Free File Sender
Free file transfer
Page Sidebar | Open any page in side panel
Effortlessly open any website in your web browser's sidebar – streamline your workflow instantly!
Bible-WebApp
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Simple Notes
Simple notes in a panel, with a context menu item to copy text to a note.
Bing Translate
Easily access Bing Translate from Opera's sidebar
Bookmarks Manager and Viewer
An elegant bookmark manager with fuzzy search and more
GeoKW
Zaznacz lub wpisz numer KW, aby uzyskać informacje o działkach w tej księdze.
Tree Tabs
Manage your tabs in the sidebar!
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
SunBible
A beautiful way to read, study, and memorize the Bible
Category Tabs for Google Keep™
Better organise your Google Keep notes
PageExpand
All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
Bookmarks by the Side
A simple bookmarks sidebar.
Language toolkit
The missing language interface.
ChessGrow
Give easy access to ChessGrow from sidebar.
Morse Code Translator
Translate text to Morse code and back.
Shortcuts for Google™
Choose from 1000+ Google™ shortcuts to show up as buttons in a space-saving popup
Tabsets.net
Use the tabsets.net browser extension to safely keep track all your tabs and links in the Side Panel, locally or in the cloud
calcatom
Smart scientific calculator with live currency conversion in your browser
Gus EDT Extension
Extension pour utiliser le Gus-Edt
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial Extension
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
GTasks Sidebar
Google Tasks on sidebar (not official)
Fraction Generator
Generate Fractions for copy to clipboard
Black Menu for Wikipedia
Easy access to the Wikipedia universe
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
Browse++ Sidebar
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.