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smolvm vs Cloud Hypervisor: catalog facts
smolvm	Cloud Hypervisor
Free The smolvm runtime is free and open source; the separate smol cloud service includes $10…	Free Free and open source under the Linux Foundation.
Windows, macOS, Linux, Self-hosted, Command line	Linux, Command line
Hardware isolation for each workload in a lightweight microVM Runs on macOS, Linux and Windows	Small attack surface with few emulated devices, written in Rust Fast boot and low memory overhead
Aimed at developers rather than desktop virtualization users Runs Linux guests only	No graphical interface; built for infrastructure and automation Not aimed at legacy guests that need broad hardware emulation
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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