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 / 2007-08-02:
download Windows Installer (2.6 MB)
download All platforms (zip, 3.4 MB)
All Downloads
   

Support

Google Group: Help and Discussion

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. If you don't want a Google account, there is a manually maintained list as well:
Email:
 

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:

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