 [](https://travis-ci.org/cryptomator/cryptomator) [](https://snyk.io/test/github/cryptomator/cryptomator?targetFile=main%2Fpom.xml) [](https://www.codacy.com/app/cryptomator/cryptomator?utm_source=github.com&utm_medium=referral&utm_content=cryptomator/cryptomator&utm_campaign=Badge_Grade) [](http://twitter.com/Cryptomator) [](https://poeditor.com/join/project/bHwbvJmx0E) [](https://github.com/cryptomator/cryptomator/releases/latest) [](https://community.cryptomator.org) Multi-platform transparent client-side encryption of your files in the cloud. Download native binaries of Cryptomator on [cryptomator.org](https://cryptomator.org/) or clone and build Cryptomator using Maven (instructions below). ## Features - Works with Dropbox, Google Drive, OneDrive, 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 - One thousand commits for the security of your data!! :tada: ### Privacy - 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](https://www.schneier.com/essays/archives/1999/11/a_plea_for_simplicit.html) ### Consistency - HMAC over file contents 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](http://en.wikipedia.org/wiki/Single_point_of_failure) ### Security Architecture For more information on the security details visit [cryptomator.org](https://cryptomator.org/architecture/). ## Building ### Dependencies * Java 10 (min. 10.0.1, we recommend to use the current version) * Maven 3 * Optional: OS-dependent build tools for native packaging (see [Windows](https://github.com/cryptomator/cryptomator-win), [OS X](https://github.com/cryptomator/cryptomator-osx), [Linux](https://github.com/cryptomator/builder-containers)) ### Run Maven ``` cd main mvn clean install -Prelease ``` An executable jar file will be created inside `main/uber-jar/target`. ## License 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.