Tart is a virtualization toolset to build, run and manage macOS and Linux virtual machines on Apple Silicon.
Learn MoreVirtualization and beyond ¶
Native performance
Tart is using Apple’s native Virtualization.Framework that was developed along with architecting the first M1 chip. This seamless integration between hardware and software ensures smooth performance without any drawbacks.
For storing virtual machine images Tart integrates with OCI-compatible container registries. Work with virtual machines as you used to with Docker containers.
Tart powers several continuous integration systems including on‑demand GitHub Actions Runners and Cirrus CI. Double the performance of your macOS actions with a couple lines of code.
Automation Powerhouse ¶
With more than 10,000 installations to date, Tart has been adopted for various scenarios. Its applications range from powering CI/CD pipelines and reproducible local development environments, to helping in the testing of device management systems without actual physical devices.
What our users say ¶
Sebastian Jachec
Mobile Engineer at Daybridge
It’s been plain-sailing with the Cirrus Runners — they’ve been great! They’re consistently 60+% faster on workflows that we previously used Github Actions’ macOS runners for.
Mikhail Tokarev
CTO at Codemagic
Thanks to the minimal overhead of using the Apple Virtualization API, we’ve seen some performance improvements in booting new virtual machines compared with Anka.
Max Lapides
Senior Mobile Engineer at Tonal
Previously, we were using the GitHub‑hosted macOS runners and our iOS build took ~30 minutes. Now with Cirrus Runners, the iOS build only takes ~12 minutes. That’s a huge boost to our productivity, and for only $150/month per runner it is much less expensive too.