Sleepycat Software builds, distributes, and supports The Berkeley Database (Berkeley DB), the Open Source embedded database system. Berkeley DB is a programmatic toolkit that provides high-performance built-in database support for desktop and server applications and for information appliances.

The Berkeley DB access methods include B+tree, Extended Linear Hashing, Fixed and Variable-length records, and Queues. Berkeley DB provides full transactional support, database recovery, online backups, and separate access to locking, logging and shared memory caching subsystems.

Berkeley DB supports C, C++, Java, Tcl, Perl, and Python APIs. The software is available for Linux, a wide variety of UNIX platforms, Windows 95/98, Windows/NT, Windows 2000, and VxWorks.