Compare software

Firejail vs gVisor: catalog facts
Firejail	gVisor
Free Free and open source.	Free Free and open source under the Apache 2.0 licence.
Linux, Command line	Linux, Command line
Sandboxes existing applications without modifying them Uses kernel namespaces and seccomp-bpf filtering	Strong isolation without a full virtual machine runsc runtime works with Docker and Kubernetes
Linux only Runs as a SUID program, which some users consider a risk in itself	Implements a Linux-like interface, so some applications may not be compatible Linux hosts only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: Apache-2.0
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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