# [Bazel](https://bazel.build)
*{Fast, Correct} - Choose two*
Build and test software of any size, quickly and reliably.
* **Speed up your builds and tests**:
Bazel rebuilds only what is necessary.
With advanced local and distributed caching, optimized dependency analysis and
parallel execution, you get fast and incremental builds.
* **One tool, multiple languages**: Build and test Java, C++, Android, iOS, Go,
and a wide variety of other language platforms. Bazel runs on Windows, macOS,
and Linux.
* **Scalable**: Bazel helps you scale your organization, codebase, and
continuous integration solution. It handles codebases of any size, in multiple
repositories or a huge monorepo.
* **Extensible to your needs**: Easily add support for new languages and
platforms with Bazel's familiar extension language. Share and re-use language
rules written by the growing Bazel community.
## Getting Started
* [Install Bazel](https://docs.bazel.build/install.html)
* [Get started with Bazel](https://docs.bazel.build/getting-started.html)
* Follow our tutorials:
- [Build C++](https://docs.bazel.build/tutorial/cpp.html)
- [Build Java](https://docs.bazel.build/tutorial/java.html)
- [Android](https://docs.bazel.build/tutorial/android-app.html)
- [iOS](https://docs.bazel.build/tutorial/ios-app.html)
## Documentation
* [Bazel command line](https://docs.bazel.build/user-manual.html)
* [Rule reference](https://docs.bazel.build/be/overview.html)
* [Use the query command](https://docs.bazel.build/query.html)
* [Extend Bazel](https://docs.bazel.build/skylark/concepts.html)
* [Write tests](https://docs.bazel.build/test-encyclopedia.html)
* [Roadmap](https://bazel.build/roadmap.html)
* [Who is using Bazel?](https://github.com/bazelbuild/bazel/wiki/Bazel-Users)
## Contributing to Bazel
See [CONTRIBUTING.md](CONTRIBUTING.md)
[](https://ci.bazel.build)