Leudachain
Translator
Translate selected or entered text
uBlock Origin
Finally, an efficient blocker. Easy on CPU and memory.
Video Downloader VeeVee
Video Downloader VeeVee – download videos from the Internet.
Sidebar for YouTube™
Easy Access to YouTube via Sidebar UI
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
Pacman
A Pacman game on a popup, now version 1.2!
GX Calculator
Simple GX-style calculator adapts to the current colors and also reacts to keystrokes.
Facebook Opera Sidebar
Access Facebook through Opera Sidebar.
Side Calculator
Calculator on the new sidebar of Opera.
Sidebar Sticky Note
Free HTML5 Sidebar Sticky Notes
Sidebar for Google™ Translate
Easy Access to Google Translate via Sidebar UI
Sidebar Sketch
Sketch anytime on your sidebar, even offline.
QR Code Generator
Generate any QR code anytime, even offline
Sidebar for Youtube Music
Youtube Music sidebar extension
V7 Bookmarks
Bookmarks manager in your sidebar
Note Sidebar
Simple note sidebar which can be used to write a note, record thoughts, to-do list, meeting notes, etc.
Emoji Minesweeper
Play Minesweeper as Emojis!
Text to Voice
Open sidebar selected text and click in context menu 'Selected text to Speech' to listen
Sudoku Sidebar
Play Sudoku on Sidebar anytime in your browser! even offline!
Vertical Tabs
Manage your tabs in the sidebar!
Bing Translate
Easily access Bing Translate from Opera's sidebar
Tree Tabs
Manage your tabs in the sidebar!
V7 Notes
Old school opera notes
Raindrop.io - Smart Bookmarks
All-in-one bookmark manager
Sudoku v2
Play Sudoku from sidebar anytime even offline
Twitter Lite Sidebar (Unofficial)
Access Twitter Lite through Opera Sidebar. This is an UNOFFICIAL extensions.
Web Panel
Navigate to websites in the sidebar.
Simple Notes
Simple notes in a panel, with a context menu item to copy text to a note.
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial Extension
V7 Sessions
Sidebar session manager
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
Google Messages Sidebar
Access to Google Messages website on the sidebar.