Real Problems. Real Solutions.

What will you use it for?

Our beta users told us exactly why they need CiderStack. Here's what they're doing with it.

Test without downgrading

"I need to test on Ventura but I'm on Sequoia"

Spin up any macOS version without touching your main system. Test backwards compatibility without the risk.

Try betas safely

"I want to test Sequoia beta without nuking my laptop"

Kick the tires on new releases in complete isolation. Break things without consequences.

Complete isolation

"I need a sandbox for crypto/sketchy stuff"

What happens in the VM stays in the VM. Delete with one click. Perfect for security research.

CI/CD pipelines

"Our GitHub runners are too slow and expensive"

Run your own Mac CI with instant VM provisioning. Full control, no cloud bills.

iOS development

"I need to test against older Xcode versions"

Keep multiple Xcode versions in separate VMs. Test against any iOS SDK without cluttering your main machine.

Clean environments

"I want to test my app on a fresh macOS install"

Snapshot a clean install, test your app, restore in seconds. Repeat forever.

Truly offline

No cloud dependency. No license checks. Runs entirely on your hardware. Works on planes, trains, and basements.

CLI-first design

Full control from the command line. Perfect for automation, CI/CD pipelines, and power users who love the terminal.

Instant snapshots

Save and restore VM state in under a second. It's like having an undo button for your entire operating system.

Native performance

Built on Apple's Virtualization.framework. Near-native speed, hardware acceleration, and proper macOS integration.

What beta users are saying

"I was about to buy a Mac Mini just for testing older macOS versions. This saved me $600."
iOS Developer testing legacy support
"Finally I can try betas without worrying about breaking my work machine. Game changer."
Beta tester, Sequoia program
"The snapshots are incredible. Break something, restore in under a second. It's like having an undo button for your entire Mac."
Security researcher
"I didn't even know you could run Mac VMs. This is so much simpler than I expected."
Indie app developer

Ready to try it?

Join the beta and get early access. No credit card required.

Download Beta