# H2 Database Engine Welcome to H2, the Java SQL database. The main feature of H2 are: Very fast, open source, JDBC and ODBC API Embedded, server and cluster modes; in-memory databases Browser based Console application Small footprint: around 1 MB jar file size
### Download Beta Version ${version} (${versionDate}):
| Windows Installer (3.1 MB)
| All Platforms (zip, 4.7 MB)
All Downloads (including Stable)
### Support English Google Group Japanese Google Group Or send an e-mail to:
### Performance Operations/second (higher is better) - More information about this test
### News Newsfeeds: Full text (Atom) or 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 (for details, start the H2 Console and select Options / Translate). To donate money, click on the PayPal button below. You will be listed as a supporter: