Cryptomator is provided free of charge as an open-source project despite the high development effort and is therefore dependent on donations. If you are also interested in further development, we offer you the opportunity to support us:

• One-time or recurring donation via Cryptomator's website.
• Become a sponsor via Cryptomator's sponsors website.

Become our Gold Sponsor and showcase your brand to a targeted audience! Please contact us if you are interested.

Continuous integration hosting for ARM64 builds is provided by MacStadium.

Cryptomator offers multi-platform transparent client-side encryption of your files in the cloud.

Download native binaries of Cryptomator on cryptomator.org or clone and build Cryptomator using Maven (instructions below).

• Works with Dropbox, Google Drive, OneDrive, MEGA, pCloud, ownCloud, Nextcloud and any other cloud storage service which synchronizes with a local directory
• Open Source means: No backdoors, control is better than trust
• Client-side: No accounts, no data shared with any online service
• Totally transparent: Just work on the virtual drive as if it were a USB flash drive
• AES encryption with 256-bit key length
• File names get encrypted
• Folder structure gets obfuscated
• Use as many vaults in your Dropbox as you want, each having individual passwords
• Four thousand commits for the security of your data!! 🎉

• 256-bit keys (unlimited strength policy bundled with native binaries)
• Scrypt key derivation
• Cryptographically secure random numbers for salts, IVs and the masterkey of course
• Sensitive data is wiped from the heap asap
• Lightweight: Complexity kills security

• Authenticated encryption is used for file content to recognize changed ciphertext before decryption
• I/O operations are transactional and atomic, if the filesystems support it
• Each file contains all information needed for decryption (except for the key of course), no common metadata means no SPOF

For more information on the security details visit cryptomator.org.

• JDK 22 (e.g. temurin, zulu)
• Maven 3

mvn clean install
# or mvn clean install -Pwin
# or mvn clean install -Pmac
# or mvn clean install -Plinux

This will build all the jars and bundle them together with their OS-specific dependencies under target. This can now be used to build native packages.

This project is dual-licensed under the GPLv3 for FOSS projects as well as a commercial license for independent software vendors and resellers. If you want to modify this application under different conditions, feel free to contact our support team.