Opera has revealed that use of its mobile web browser, Opera Mini, has risen 63 percent in the UK in the last year.

Opera Mini is a small browser that works in conjunction with back-end servers that shrink web content for easier delivery to mobile phones. According to Opera, the browser is currently used by 20 million people worldwide

Research by the software company revealed that on average Opera Mini users viewed 245 pages each in January 2009. Search engine Google remained the most visited website by mobile web users in the UK, but was closely followed by social networking site Facebook, Yahoo and the BBC.

"Looking back on a full year of mobile web growth, it is easy to see why mobile devices will become the primary device for web usage in most of the world," said Jon von Tetzchner, CEO, Opera.

The software company recently signed deals with Yahoo and UK mobile operator Vodafone, which will see the mobile web browser distributed by both companies.

Yahoo plans to begin offering downloads of Opera Mini browser from its Yahoo Mobile website, which will launch in March.

See also: Opera Turbo speeds up mobile web browsing