Bazel was born of Google's own needs for highly scalable builds. When we open sourced Bazel back in 2015 , we hoped that Bazel could fulfill similar needs in the software development industry. A growing list of Bazel users attests to the widespread demand for scalable, reproducible, and multi-lingual builds. Bazel helps Google be more open too: several large Google open source projects, such as Angular and TensorFlow, use Bazel. Users have reported 3x test time reductions and 10x faster build speeds after switching to Bazel.

New to Bazel? Try the tutorial for your favorite language to get started.With the 1.0 release we still have many exciting developments ahead of us. Follow our blog or Twitter account for regular updates. Feel free to contact us with questions or feedback on the mailing list , submit feature requests (and report bugs) in our GitHub issue tracker , and join our Slack channel . Finally, join us at the largest-ever BazelCon conference in December 2019 for an opportunity to meet other Bazel users and the Bazel team at Google, see demos and tech talks, and learn more about fast, correct, and large-scale builds.Last but not least, we wouldn't have gotten here without the continued trust, support, encouragement, and feedback from the community of Bazel users and contributors. Heartfelt thanks to all of you from the Bazel team!