Microsoft Corp. has unveiled an early version of a new Web browser for mobile devices that it said will make browsing full-sized Web pages faster and easier on small smart-phone screens.

Deepfish, as the software from Microsoft’s Live Labs group is called, takes a Web page intended for a desktop Web browser and turns it into a small image that fits on a mobile phone’s screen. Users can zoom in on the part of the page they want to read or click on.