Official Opera libraries
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.
The Graph Library eases the creation and display of different data.
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.
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.
The Widget Object API lets you manipulate widgets via the widget object and extensions to the window object.
