Leudachain
Translator
Translate selected or entered text
uBlock Origin
Finally, an efficient blocker. Easy on CPU and memory.
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 for Google™ Translate
Easy Access to Google Translate via Sidebar UI
Sidebar Sticky Note
Free HTML5 Sidebar Sticky Notes
Sidebar Sketch
Sketch anytime on your sidebar, even offline.
QR Code Generator
Generate any QR code anytime, even offline
Emoji Minesweeper
Play Minesweeper as Emojis!
V7 Bookmarks
Bookmarks manager in your sidebar
Sudoku Sidebar
Play Sudoku on Sidebar anytime in your browser! even offline!
Text to Voice
Open sidebar selected text and click in context menu 'Selected text to Speech' to listen
Simple Notes
Simple notes in a panel, with a context menu item to copy text to a note.
Vertical Tabs
Manage your tabs in the sidebar!
Twitter Lite Sidebar (Unofficial)
Access Twitter Lite through Opera Sidebar. This is an UNOFFICIAL extensions.
V7 Notes
Old school opera notes
Sudoku v2
Play Sudoku from sidebar anytime even offline
Raindrop.io - Smart Bookmarks
All-in-one bookmark manager
Tree Tabs
Manage your tabs in the sidebar!
Web Panel
Navigate to websites in the sidebar.
V7 Sessions
Sidebar session manager
Free File Sender
Free file transfer
Bing Translate
Easily access Bing Translate from Opera's sidebar
Bible-WebApp
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial Extension
V7 Tabs
Sidebar windows and tabs
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
Bookmarks Manager and Viewer
An elegant bookmark manager with fuzzy search and more