Official Opera libraries
An API for publishing to an activity stream
The animation library and its extension is used to animate elements.
The Base 64 Encoder Library is used to convert a string to base 64.
The Calendar Library is used to generate markup for displaying a calendar.
The Calendar Events library handles calendar events.
The Counter Library can be used to make a counter that either counts up or down.
The Feed Reader Library handles reading data from one single RSS feed.
The File I/O API provides you with functionality needed to access data on the desktop from widgets.
GNU Gettext implementation
The Graph Library eases the creation and display of different data.
External library resource handler
Markuper is a template library that provides an easy way to develop Opera Unite services using a specific syntax that developers can use to create bindings between JavaScript code and HTML documents.
The Multi Page Help library provides a way to create a help system that can consits of several different pages.
A simple pub/sub debug output.
A class for periodic resources downloading.
The Scraper library is used to scrape a webpage for content.
The Service discovery API lets you discover services that announce their presence on a network. You can then contact these services and potentially use data from them.
The tooltip library lets you assign a tooltip to any element on your webpage.
The Opera Unite API lets you write Opera Unite services, turning your browser into a Web server.
A library to make resizable widget chrome.
Derives the user agent's locale.
The Widget Object API lets you manipulate widgets via the widget object and extensions to the window object.
The Opera Unite application framework, foundation of Opera Unite applications.
