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Doppler vs fnox: catalog facts
Doppler	fnox
Freemium Free tier for individuals and small teams, paid plans for larger organizations.	Free Free and open source under the MIT license.
Web, Command line	Windows, Command line
Single CLI workflow replaces manually copying secrets between environments Works across cloud providers instead of locking you into one vendor's secret store	Config can be committed to git without exposing secret values Supports age, 1Password, Bitwarden, Vault and major cloud providers
Core service is a hosted platform, so you are trusting Doppler with your secrets Free tier is limited to small teams	Command-line only Aimed at developers; requires editing a TOML config
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: MIT
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.