H2 Database Engine

Welcome to H2, the free SQL database. The main feature of H2 are:

  • Very fast, free for everybody, source code is included
  • Written Java; can be compiled with GCJ (Linux)
  • Embedded, Server and Cluster modes
  • JDBC and (partial) ODBC API; Web Client application

Download

Version 1.0.63 (2007-12-02):
download Windows Installer (2.8 MB)
download All platforms (zip, 3.9 MB)
All Downloads
   

Support

English Google Group
Japanese Google Group

Or send an e-mail to:

 

Performance

Performance comparison
Operations/second (higher is better) - More information about this test
 

News

Newsfeeds: Two are available: Full text (Atom) and Header only (RSS).

Email Newsletter: Subscribe to H2 Database News (Google account required) to get informed about new releases. Your email address is only used in this context.

 

Contribute

You can contribute to the development of H2 by sending feedback and bug reports, or translate the H2 Console application (files h2/src/main/org/h2/server/web/res/_text_*.properties). Or click on the PayPal button below to donate money. You will be listed as a supporter:

 

Feedback

You may also send questions, feature requests, or feedback of any kind here:

Email (optional):

Message: