Napster Inc. said late Tuesday that it planned to attract more customers by moving to a Web-based platform that will allow users to play their music from any computer without requiring additional software.

The move by the Los Angeles-based music subscription service is intended to attract more paying subscribers by making its platform more flexible and compatible with any Internet-enabled device, Napster said in a statement.

Subscribers can now access their music only after downloading the Napster software application which is similar to a model used by Apple Inc.’s iTunes store.

Shares in Napster were up 2.5 percent to $3.31 in afternoon trading Wednesday on the Nasdaq.