Secret Space Encryptor (SSE)

File Encryption, Text Encryption (Messages, Notes, …), Secure Password Manager

PGPony

Encrypt, decrypt and sign with OpenPGP. Post-quantum keys and security keys.

MorseLightCrypt

Morse code by flashlight and camera, optionally encrypted. No network.

PaperCript

Encrypted passwords on printable QR cards. No network, stores nothing.

Banana Split

Split secrets into QR-code shards using Shamir's Secret Sharing

AgePony: Encrypt & Sign

Post-quantum file & message encryption with age. On-device, private, no ads.

Kryptos

Encrypt inside any messenger: the keyboard encrypts, the screen decrypts

CryptoSafe

Offline AES-256-GCM text encryption with Argon2id, no internet permission

Salty

A secure, offline-first message encryption tool for Android.

Bluecheese

Offline text encryption-fast, local, no trackers.

Secure QR Share

Share passwords and links securely via encrypted QR codes.

Simple Text Crypt

Encrypts plain text using AES256

CryptX

Simple Android Cryptography Toolkit

SecureYourChats

Text & File Encryption/Decryption with new OverlayTechnology

DroidCrypt

A file and text encryption tool for Android

OpenKeychain: Easy PGP

Encrypt your Files and Communications. Compatible with the OpenPGP Standard.

KryptEY

Keyboard for secure E2EE communication through signal protocol in any messenger

Rivia

Rivia is the ultimate encryption tool

PixelKnot: Hidden Messages

Have a secret that you want to share? Why not hide it in a picture?

Encrypt Text

Minimalistic application to encrypt plain text using AES 256.

Oversec

Privacy for All Apps! Encrypt and Disguise Messages in All Your Apps!