open-keychain/open-keychain

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2612 stars · 535 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

OpenKeychain is an open-source OpenPGP implementation for Android that manages encryption keys and encrypts, decrypts, and signs messages and files. It integrates with apps like K-9 Mail, Conversations, and Password Store to provide end-to-end encryption.

Use cases

• encrypt and decrypt emails on android
• manage openpgp keys on my phone
• sign and verify messages with pgp
• use pass password store with pgp on android
• exchange pgp keys with contacts
• add end-to-end encryption to k-9 mail

When to choose

• you need OpenPGP encryption or key management on Android
• you use apps like K-9 Mail, Conversations, or Password Store that integrate with it
• you want an audited, free-software OpenPGP solution on mobile

When to avoid

• you need actively developed software with new features - the project is no longer actively developed
• you need OpenPGP on desktop or non-Android platforms
• you need a general-purpose encryption tool rather than OpenPGP

Facets

application · maturity maintenance

cryptography security security privacy android-tools openpgp pgp key-management e2e-encryption email-encryption gpg android

Member repositories

For agents

markdown · JSON · MCP: product_card(name="open-keychain/open-keychain")