The world wide web is "still in its infancy", the web's inventor Sir Tim Berners-Lee has told BBC News.

He was speaking ahead of the 15th anniversary of the day the web's code was put into the public domain by Cern, the lab where the web was developed.

The future web will put "all the data in the world" at the fingertips of every user, Sir Tim said.

"The web has been a tremendous tool for people to do a lot of good even though you can find bad stuff out there."

Making the web free to use had a vital role in spreading its use worldwide.

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There are now 165 million different websites around the world, according to internet research firm Netcraft.

Sir Tim said he was optimistic about the future of the web.

'Fantastic experience'

"The experience of the development of the web by so many people collaborating across the globe has just been a fantastic experience," he said.

"The experience of international collaboration continues. Also the spirit that really we have only started to explore the possibilities of [the web], that continues."

Sir Tim predicted that the web's ability to engender collaboration could one day see the web being used to help manage the planet.

"What's exciting is that people are building new social systems, new systems of review, new systems of governance.

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