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Firecracker vs microsandbox: catalog facts
Firecracker	microsandbox
Free The open-source software is available without a license fee. Hosting, hardware and…	Free The local runtime is free and open source under Apache-2.0; managed cloud access is by…
Linux, Command line	Windows, macOS, Linux, Command line
Targets container and function-based server infrastructure.	Separate kernel per sandbox for stronger isolation than containers No daemon, root or account needed locally
Requires Linux virtualization support and low-level configuration.	Young project Cloud offering is still in private beta
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.