Download Protocol Buffers

Release Packages

The latest release of Protocol Buffers can be found on the release page.

We recommend users to use the latest version. If you still need an old version for some reason, you can find our historical releases here.

Protocol Buffers source code is hosted on GitHub.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2021-10-13 UTC.