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
Side Calculator
Calculator on the new sidebar of Opera.
Twitter Lite Sidebar (Unofficial)
Access Twitter Lite through Opera Sidebar. This is an UNOFFICIAL extensions.
2048 Sidebar
The famous 2048 game on the Opera Sidebar.
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
Sidebar for Google™ Translate
Easy Access to Google Translate via Sidebar UI
Google Keep Sidebar
Access to Google Keep website on the sidebar.
TweetTab
Access to Twitter mobile site. For Opera 29+ only.
Google Translate Sidebar for Opera
Access Google Translator through Opera Sidebar. This extension is UNOFFICIAL, and has nothing to do with Google.
Sidebar Sticky Note
Free HTML5 Sidebar Sticky Notes
Quick Notes
The extension allows you to quickly save text notes on the sidebar of your browser.
Text to Voice
Open sidebar selected text and click in context menu 'Selected text to Speech' to listen
V7 Bookmarks
Bookmarks manager in your sidebar
V7 Sessions
Sidebar session manager
2048 Mini game
The game 2048
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
V7 Notes
Old school opera notes
Raindrop.io - Smart Bookmarks
"Save Button" for Web
Yandex.Translate Sidebar
This is an unoffical extensions. Yandex Translate for Opera Sidebar
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.
GIKRadio
The extension allows you to listen GIKRadio directly in the browser. Walk on the Internet and listen good music! Request Song from sidebar (press CTRL+SHIFT+S).
Sidebar for Google™ Search
Easy Access to Google search via Sidebar UI
Vertical Tabs
Manage your tabs in the sidebar!
Bookmarks by the Side
A simple bookmarks sidebar.
V7 Stash
Save pages for later reading
Todoist sidebar(Unofficial)
Opens Todoist(https://todoist.com) in the sidebar. This is an unoffical extension.
V7 Tabs
Sidebar windows and tabs
V7 History
Access History from your Sidebar
Tree Tabs
Manage your tabs in the sidebar!