{ Fast, Correct } — Choose two

  • Speed up your builds and tests

    Rebuild only what is necessary. Get fast, incremental builds with Bazel's advanced local and distributed caching, optimized dependency analysis, and parallel execution.

  • One tool, multiple languages

    Build and test using Java, C++, Go, Android, iOS and many other languages and platforms. Bazel runs on Windows, macOS, and Linux.

  • Scalable

    Scale your organization, codebase, and Continuous Integration systems. Bazel handles codebases of any size, whether in multiple repositories or a huge monorepo.

  • Extensible to your needs

    Add support for new languages and platforms with Bazel's extension language. Share and re-use language rules written by the growing Bazel community.
Install Bazel

Essential Bazel

Build and test software of any size, quickly and reliably. Industry leaders like Google, Stripe, and Dropbox trust Bazel to build heavy-duty, mission-critical infrastructure, services, and applications.
Learn what Bazel is, why it is a good choice for your project, and how you can get started using it quickly.
Get started
Learn how to use Bazel with documentation and tutorials covering topics from foundational to expert.
Read the docs
Use these resources to efficiently look up the commands, queries, and terminology necessary to working with Bazel.
Search the guide

What's new?

Bazel is always evolving — catch up on our newest documentation or check the release notes to see what's changed and how that affects your builds.
Release notes
Learn some history of building and build systems, including design decisions that went into making Bazel.
Bzlmod is the codename of the new external dependency system introduced in Bazel 5.0.
Join or start a Special Interest Group (SIG) to focus collaboration on particular areas of Bazel development.
When you build software with Bazel, you're running the same code that has been refined and tested for years at Google to build heavy-duty, mission-critical infrastructure, services, and applications.
Who's using Bazel