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fnox vs SOPS: catalog facts
fnox	SOPS
Free Free and open source under the MIT license.	Free Free and open source under the MPL.
Windows, Command line	Windows, macOS, Linux, Command line
Config can be committed to git without exposing secret values Supports age, 1Password, Bitwarden, Vault and major cloud providers	Encrypts values but not keys, so diffs and reviews stay meaningful Works with age, PGP and every major cloud key management service
Command-line only Aimed at developers; requires editing a TOML config	Anyone who can decrypt a file can read every secret in it Key rotation across many files is a manual exercise
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MPL-2.0
No account needed	Not stated if an account is 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 22, 2026

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