Gears, formerly Google Gears, is beta software offered by Google to enable offline access to services that normally only are available online. It installs a database engine, based on SQLite, on the client system to cache the data locally. Gears-enabled pages use data from this local cache rather than from the online service. Using Gears, a web application may periodically synchronize the data in the local cache with the online service. If a network connection is not available, the synchronization is deferred until a network connection is established. Thus Gears enables web applications to work even though access to the network service is not present.