Cryptomator
Open-source client-side encryption for files you keep in cloud storage, with vaults you unlock locally.
Our verdict
What it does well
- Desktop app is free with all functional and encryption features
- Source is public under GPLv3 and the site cites independent security audits
- Encrypts files and filenames with AES and a 256-bit key
Where it falls short
- Mobile apps are read-only until you buy full access
- Mobile and dark-mode licences are priced per platform, no bundle
- Prices are shown in EUR, with checkout prices that may differ by region
Cryptomator encrypts files you store in cloud services; the site describes it as client-side encryption using AES with a 256-bit key, covering files and filenames. You create vaults and unlock them locally, and the project says it is open source with independent security audits.
The desktop app for Windows, macOS and Linux is free with all functional and encryption features. The iOS and Android apps are free but read-only; full access is a one-time purchase per platform, listed at EUR 29.99 (shown as EUR 19.99 during a sale at the time of research). A supporter certificate for dark mode on desktop is also from EUR 29.99. Cryptomator Hub Community is free and self-hosted with 5 seats; Hub Standard is per seat per month with a 30-day trial, and Enterprise is from EUR 10,000 a year.
The code is on GitHub under GPLv3; the README says the project is dual-licensed with a commercial licence for independent software vendors and resellers.
What users say
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Last updated 17 October 2026. Facts checked against the official site on 16 October 2026. How we make money