Open source cryptography projects
Every project in the registry tagged cryptography, ranked by real GitHub adoption.
A powerful obfuscator for JavaScript and Node.js
Secure password manager with end-to-end encryption
Secure, private, and decentralized file storage
Cryptographic filesystem for the cloud
The portal to the new, open Internet. ([I:b])
Manage secrets with Bash and GnuPG symmetric encryption
铜锁/Tongsuo is a Modern Cryptographic Primitives and Protocols Library
A KeePass/Password Safe Client for iOS and OS X
EJBCA® – Open-source public key infrastructure (PKI) and certificate authority (CA) software.
🔑 Free Offline-first Password Manager
Charm: A Framework for Rapidly Prototyping Cryptosystems
Manage secrets with Bash and GnuPG asymmetric encryption (YubiKey)
An RPKI Validator and RTR server written in Rust
Related tags
Frequently asked questions
How many open source cryptography projects are there?
This registry tracks 13 projects tagged cryptography, with 34,088 GitHub stars between them. The most-adopted is javascript-obfuscator at 16,318 stars.
Are these cryptography projects free to use?
Yes — 13 of the 13 carry an explicit open-source licence across 8 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which cryptography project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these cryptography projects still maintained?
12 of the 13 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.