Cryptomator encrypts your data quickly and easily. Afterwards you upload them protected to a cloud service.
Official website cryptomator.org
Our take
If your files live in Dropbox, Google Drive, or iCloud and you want them encrypted before they sync, this is the cleanest answer, with transparent per-file encryption and apps on every platform. The honest limit is that filename and folder-structure protection has edges, and mobile access on the paid apps is its own consideration. Ideal for adding zero-knowledge to a cloud you already use; not a replacement for whole-disk encryption.
GitHub at a glance
cryptomator/cryptomator
Stars
15,413
+ 184 this week
Last commit
2d ago
healthy
License
GPL-3.0
Latest release
1.19.2
3mo ago
Stars, last 10d
Listed in
Cryptomator alternatives
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VeraCrypt It can create a virtual encrypted disk that works just like a regular disk but within a file. It can also encrypt a partition or the entire storage device with pre-boot…
PrivacyNotes Zero-knowledge notes, tasks, files, passwords and journal secured by a single 12-word recovery phrase, with no email or password required. The crypto core and database schema are published for audit. No subscription model.
7-Zip File archiver with a high compression ratio and built-in encryption functionality.
GnuPG GnuPG (GNU Privacy Guard) is the free, GPL-licensed implementation of the OpenPGP standard. A command-line tool for Linux, macOS, and Windows, it encrypts and signs files and email, and manages public-key directories.
Gpg4win Gpg4win is the official Windows installer for GnuPG, bundling the Kleopatra certificate manager and GpgOL for Outlook integration. It provides OpenPGP and S/MIME encryption for files and email on Windows.
Cryptomator license, in plain English
GPL-3.0 Strong copyleft
Free to use and modify, but anything you distribute that is built on it must also be open under the same license.
Permits
- Commercial use
- Modification
- Distribution
- Patent use
- Private use
Requires
- Disclose source
- Same license
- State changes
- License and copyright notice
Does not provide
- Liability cover
- Warranty
Why it matters: Strong copyleft keeps every distributed version open. A vendor cannot fold this into a closed product and ship it without releasing their changes.
Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.