Clone this repo:
  1. 0ccc788 Merge pull request #1624 from bungeman/patch-1 by Jan Niklas Hasse · 4 days ago master upstream/master
  2. adcf925 Add short doc for cleandead tool, fix #1716 by Jan Niklas Hasse · 5 days ago
  3. e6d5140 Merge pull request #1719 from jhasse/cmake-static-msvc by Jan Niklas Hasse · 5 days ago
  4. e0f4e34 GitHub Actions: Split Windows and macOS workflows by Jan Niklas Hasse · 5 days ago
  5. f2cf7a4 CMake: Use static MSVC runtime, fixes #1692 by Jan Niklas Hasse · 5 days ago


Ninja is a small build system with a focus on speed.

See the manual or doc/manual.asciidoc included in the distribution for background and more details.

Binaries for Linux, Mac, and Windows are available at GitHub. Run ./ninja -h for Ninja help.

Installation is not necessary because the only required file is the resulting ninja binary. However, to enable features like Bash completion and Emacs and Vim editing modes, some files in misc/ must be copied to appropriate locations.

If you're interested in making changes to Ninja, read first.

Building Ninja itself

You can either build Ninja via the custom generator script written in Python or via CMake. For more details see the wiki.


./ --bootstrap

This will generate the ninja binary and a file you can now use to built Ninja with itself.


cmake -Bbuild-cmake -H.
cmake --build build-cmake

The ninja binary will now be inside the build-cmake directory (you can choose any other name you like).

To run the unit tests: