Area of a Triangle
Compute area of triange give base and height of triangle or all three sides of triangle. Also computes side of triangle given others
Area of a Circle
Calculate area of a circle given any of the following, radius, diameter or circumference and vice versa
YouTube Lyrics by Rob W
Instant lyrics on YouTube, Spotify and other sites in a flexible panel. 40+ sources ensure that lyrics are always found
APR to APY
Convert Annual Percent Rate to Annual Percent Yield based on various compounding methods ranging from daily to yearly
Convert among measure of angle viz., degree, radian, mil, grad, minute, second, point, circle etc.
Provide quick sorting by date option on YouTube search page.
TinEye Reverse Image Search (Context menu)
This is the official TinEye Opera Next extension. Find out where an image came from, how it's used, or find higher resolution versions.
A leading language learning platform that makes learning fun - LinguaLeo.com.
Takes scrolling to a whole new level
Scroll To Top
Scroll to top and vice versa in a window.
Free Mobile Auto Login
Play drums on your keyboard (letters only)
Terms of Service; Didn’t Read
Get information instantly about websites' terms of service and privacy policies, with ratings and summaries from the “Terms of Service; Didn’t Read” project.
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
DuckDuckGo for Opera
Reverse Image Search
Adds a context menu item to search for similar images
MyShows Links Adder
Reddit Enhancement Suite
A suite of modules that enhance your Reddit browsing experience
Kursy walut NBP
Currencies based on Polish National Bank current average exchange rates of foreign currencies.
Akari URL Shortener
Akari will reduce the presence of your URL. Uses waa.ai API to generate short URLs.
Makes list and tables sortable (on geocaching.com)
Music search, player and meetings. Powered by last.fm and others.
The best way to focus that photo or image and add it to one photo gallery with ambient lighting effects.
Рейтинг Кинопоиска для телепрограммы
Viewer for online documents (e.g. PDF, MS Word)
Twitter Redirect Fixer
Twitter adds redirection to all shared links to learn what links you click. This extension removes redirection (Twitter + 3rd-party) to protect your privacy. As a side-effect, all links will load faster.