Open Source Android Encryption Apps
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Encryption Apps for Android
View 25 business solutionsBrowse free open source Encryption apps and projects for Android below. Use the toggles on the left to filter open source Encryption apps by OS, license, language, programming language, and project status.
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Ente
End-to-end encrypted cloud for photos, videos and 2FA secrets
Ente is a fully open-source, end‑to‑end encrypted cloud platform designed for securely storing and managing your photos, videos, and 2FA secrets — without needing to trust the service provider. It includes cross‑platform clients and a CLI for self‑hosting needs. Ente is a service that provides a fully open source, end-to-end encrypted platform for you to store your data in the cloud without needing to trust the service provider. On top of this platform, we have built two apps so far: Ente Photos (an alternative to Apple and Google Photos) and Ente Auth (a 2FA alternative to the deprecated Authy). This monorepo contains all our source code - the client apps (iOS / Android / F-Droid / Web / Linux / macOS / Windows) for both the products (and more planned future ones!), and the server that powers them. -
2
Aster Mail
Cross-platform encrypted email client for Aster
Aster Mail is an open-source, privacy-focused email service with cross-platform desktop and web clients. It protects messages, subject lines, and attachments between Aster users through local end-to-end encryption. Its cryptographic system combines ML-KEM-768 and P-256 ECDH with X3DH and Double Ratchet protocols for post-quantum protection. Messages sent to external recipients can use OpenPGP encryption when their public keys are available. Users retain control of their encryption keys and can export them to compatible applications. Optional key publishing enables encrypted communication with external contacts. Its zero-access architecture prevents the service from reading protected message contents. Accounts can be created without providing a phone number or recovery email. -
3
shadowsocks-libev
Bug-fix-only libev port of shadowsocks
Shadowsocks-libev is a lightweight secured SOCKS5 proxy for embedded devices and low-end boxes. Shadowsocks-libev is written in pure C and depends on libev. It's designed to be a lightweight implementation of shadowsocks protocol, in order to keep the resource usage as low as possible. Snap is the recommended way to install the latest binaries. You can build shadowsocks-libev and all its dependencies by script. The latest shadowsocks-libev has provided a redir mode. You can configure your Linux-based box or router to proxy all TCP traffic transparently, which is handy if you use an OpenWRT-powered router. Although shadowsocks-libev can handle thousands of concurrent connections nicely, we still recommend setting up your server's firewall rules to limit connections from each user. We strongly encourage you to install shadowsocks-libev from jessie-backports-sloppy. -
4
MicroZip
Create,extract and encrypt ZIP,GZIP,TAR,BZIP2,TAZ files on Java mobile
MicroZip is a powerful file compression and encryption utility for mobile phones which allows you to create and extract compressed archives in multiple formats and encrypt sensitive information with powerful AES-256 encryption. MicroZip can create and extract ZIP,TAR,TGZ,TBZ2 archives and extract many other formats as JAR,GZ,BZ2,TBZ,WAR,BZIP2,GZIP,Z,TAZ,CBZ etc. MicroZip allows you to extract selected files without extracting the whole ZIP archive. MicroZip also supports encrypted ZIP archives with both classic ZIP encryption and AES 256 encryption algorithm. -
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NASH OS
Nash Operating System for Modern Ecommerce
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Address_Decode
Decode various cryptocurrency addresses
Address to hash160 is an efficient multi-threaded tool designed to decode various cryptocurrency addresses (such as Bitcoin BTC,Bitcoin Cash BCH, Litecoin LTC, Bitcoin Gold BTG, etc.) to extract hash160 values. It is often used in research such as brainflayer, keyhunt, BitCrack, ecloop, keyhunt cuda, etc. -
7
BIP39-XOR
Encrypt or decrypt 12, 15, 18, 21 or 24 BIP39 codewords array ("seed")
Encrypt or decrypt 12, 15, 18, 21 or 24 BIP39 codewords array (so-called "seed phrase") using exclusive OR (XOR)/Vernam cipher (a.k.a. One Time Pad). If not input by a user, an encryption key is automatically generated at random. Encryption with such a key preserves integrity of BIP-39 checksums of all keys (that's distinct while also compatible with SeedXOR implementation). -
8
virgosun teaching support
Mentor, code c, c++, java, go, php, swift, .. DevSecOps virtual lab, .
Menor, code c, c++, java, python, go, php, swift, .., DevSecOps virtual lab, .. This software is provided as a demonstration build. Redistribution of the binary is allowed for academic evaluation only. More previously completed projects will be released incrementally as executable packages are rebuilt for public distribution. www.youtube.com/embed/fzoISpZv5d0?rel=0 -
9
In-Browser-File-Encrypter
The source code of the In-Browser-File-Encrypter web app
The In-Browser File Encrypter is a simple web application that enables you to securely encrypt your files directly in your browser using the AES-256 encryption algorithm in CBC mode. Check it out at: https://codepen.io/Northstrix/pen/xxvXvJL and https://northstrix.github.io/In-Browser-File-Encrypter/V1.0/web-app.html GitHub page: https://github.com/Northstrix/In-Browser-File-Encrypter The download shortcut: https://sourceforge.net/projects/in-browser-file-encrypter/files/V1.0%20%28Improved%20UI%29/V1.0%20%28Improved%20UI%29.zip/download Successfully tested in Google Chrome on Windows 11 and Fedora 40. -
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10
AgePony
Kotlin implementation of the age encryption protocol for Android
AgePony is an open-source Android encryption application designed to secure files and text using the age encryption format. It supports encryption and decryption compatible with the age command-line utility, including passphrase-based protection. Users can generate post-quantum hybrid keys combining ML-KEM-768 and X25519 cryptography. Private keys can be protected through Android Keystore hardware, biometric authentication, or compatible YubiKey devices. The application supports SSH-based digital signatures, signature verification, and trusted signer management. Additional tools include encrypted key vaults, QR-based key sharing, secure device-to-device transfers, and multi-file archives. AgePony operates locally without accounts, external servers, or analytics, keeping encryption operations under user control. -
11
Anonomi Messenger
A decentralized, privacy-first Android communication app built
Anonomi Messenger is a free, open-source Android messaging application designed for private communication in environments where surveillance and network restrictions are concerns. It uses decentralized peer-to-peer connections without relying on central messaging servers. Online communications can travel through Tor, including bridges when direct connections are blocked. Offline messaging works through Wi-Fi, Bluetooth, and external storage using store-and-forward transfers. Its design emphasizes reducing metadata exposure and maintaining communication when internet access is unavailable. Integrated Monero payment requests use unique subaddresses to avoid persistent payment identifiers. Offline maps support location sharing and navigation with imported map tiles. The application provides verifiable APK releases and is distributed through F-Droid. -
12
Aster Mail for Android
Android encrypted email client for Aster
Aster Mail is a free, open-source Android email application focused on private communication through end-to-end encryption. It encrypts email messages, subject lines, and attachments locally before transmitting them. Communication between Aster users combines OpenPGP encryption with post-quantum cryptographic protection using ML-KEM-768. The service uses an X3DH and Double Ratchet protocol to strengthen message confidentiality. Users retain ownership of their encryption keys and can export them for use with compatible OpenPGP applications. Public keys are automatically distributed through Web Key Directory and key servers, simplifying encrypted communication. Its zero-access architecture prevents the service from reading protected messages. Account registration does not require a phone number or recovery email. -
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Crypter-Obfuscator-Binder
I share some good Crypter
In this Section i will add some tools for Obfuscating, Binding and what sometimes, else is needed. -
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Emojis of Death is a down and dirty browser app, written in HTML. It's HTML, so it will work on anything a web browser can run on. It's purpose is to hide text strings in emojis, which you can then text or email. An encoded emoji can hold quite a bit of text. The receiver will need Emojis of Death as well, to decode the emoji. The file's small size makes it perfect for your phone. Some email and text services don't work with this, so try it.
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15
Keybase client
Keybase Go library, client, service, OS X, iOS, Android, Electron
Keybase is secure messaging and file-sharing. We use public key cryptography to ensure your messages stay private. Even we can’t read your chats. Keybase works for families, roommates, clubs, and groups of friends, too. Keybase connects to public identities, too. You can connect with communities from Twitter, Reddit, and elsewhere. Don’t live dangerously when it comes to documents. Keybase can store your group’s photos, videos, and documents with end-to-end encryption. You can set a timer on your most sensitive messages. This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software. -
16
Picocrypt NG
A very small, very simple, yet very secure encryption tool
Picocrypt NG is a free, open-source file encryption utility that continues development of the original Picocrypt project. It protects individual files and folders using authenticated encryption and password-based key derivation. Users can secure information with passwords, keyfiles, or both. Its PCV3 format provides modern encryption while retaining support for reading older Picocrypt volumes. Optional Paranoid Mode adds another encryption layer for additional protection. Reed-Solomon error correction helps recover data affected by limited file corruption. The application includes a password generator, encrypted archives, and recovery tools. It provides desktop, command-line, Android, and browser-based interfaces with platform-specific capabilities. -
17
SimpleEncryptionTool
This is a simple home use Encryption tool.
This is a Application written in QT on top op the QT Simple Encryption module "http://qt-project.org/wiki/Simple_encryption" it can Encrypt Text, and Data. -
18
VaultKeepR - Password Manager
Decentralized zero-knowledge password manager with IPFS storage.
Zero-knowledge, decentralized password manager. No email, no account, no server that can read your vault: everything is encrypted on your device with XChaCha20-Poly1305 and Argon2id before it leaves, then stored on IPFS as content-addressed fragments. Metadata is encrypted too: device names, sync data and beneficiary info never exist in plaintext on any server. Sync runs on encrypted CRDTs with no server involved in the merge. Recovery is Shamir Secret Sharing (3-of-5) across five channels, no trusted third party. On-chain digital legacy: name beneficiaries and set a dead man's switch (gasless, Base L2). Built-in TOTP authenticator, breach monitoring (HIBP), passkey unlock (WebAuthn), biometrics, NFC backup keys. 12+ import formats, PGP export. Every security feature is free forever. Premium adds convenience from EUR 2.49/month; lifetime licence EUR 299 in crypto. Open-source SDK and contracts (MIT): github.com/VaultKeepR/vaultkeepr-public. Chrome, iOS, Android. -
19
androidCrypt
Android app implementing veracrypt encrypted file containers
AndroidCrypt is an open-source Android application for creating, mounting, and managing VeraCrypt-compatible encrypted file containers. It allows users to access secure volumes created on Windows, macOS, or Linux without converting their contents. The application supports AES-256, Serpent-256, and Twofish-256 encryption, including multi-cipher cascade configurations. Users can browse encrypted directories, copy files, create folders, and work with multiple mounted containers. Security features include strong password-based key derivation, multiple hashing algorithms, and hidden volume support. New encrypted containers can be created directly on Android using FAT32 formatting for cross-platform compatibility. AndroidCrypt operates entirely offline without advertisements, analytics, or telemetry, keeping sensitive information and encryption credentials on the device. -
20
antigift
antigift is simple cross-platform, files & folders encryption tool
antigift could be used for encryption files & folders on USB-flash or HDD partition. Works on Linux (including Android), Windows, Mac OS X, FreeBSD, DragonFly BSD and other on OSes. Do not required installation. Include WIPE tool for wiping free space and tool for recovery forgotten key. See documentation at http://sourceforge.net/p/antigift/wiki/Home/ antigift простой и кросс-платформенный инструмент для шифрования файлов и папок(с ccrypt в качестве основы) Подробности см. на страничке с русской документацией http://sourceforge.net/p/antigift/wiki/rus/ -
21
crocson
GUI for schollz/croc forked from howeyc/crocgui
crocson is an open-source, cross-platform communication and file-sharing application based on croc and crocgui. It transfers files and folders securely between Android, Windows, Linux, and macOS devices using encrypted relay connections. Users can exchange files without configuring port forwarding or running a local server. Its built-in WebDAV server supports file browsing, uploads, and media streaming. The application also provides peer-to-peer video calls, screen sharing, text messaging, and audio or video recording. QR codes and deep links simplify device connections and file transfers. Additional tools include customizable relay profiles, SOCKS5 proxy support, transfer compression, resumable command-line transfers, and multilingual interface themes. -
22
dCrypt - Android Encryption Decryption
An Android application for encryption and decryption
It is a simple android application for encryption and decryption of files using passphrase. Supported API levels are in the range 10 (min) and 17 (max). To encrypt a file, what you need is to share the file to "DCrypt" and enter a passphrase. To decrypt the file, you have to share the encrypted file to the application and enter the passphrase. Obviously the passphrase for encryption and decryption should be the same. Note that the file shredding is disabled by default. That means the original file won't be deleted even if you encrypt it. To enable file shredding, go to Settings-> Enable Shredding. Please use the following e-mail id to report bugs if any: dhanoopbhaskar@gmail.com Suggestions are most welcome :) Regards, Dhanoop Bhaskar http://www.theinsanetechie.in -
23
fields.awk
A flat-file database program written in bash shell and awk scripts.
Fields.awk allows users to create and work with small-to-medium databases on their home computers or a mobile device with bash shell terminal emulator. It runs on any OS compatible with bash shell, including Linux, FreeBSD, MacOSX, and Android. Certain optional features (printing/encryption) are dependent on external utilities such as lp or ccrypt. -
24
steganography
Hidding any binary flle < 64k in image
virgo-steganography Hidding any binary flle < 64k in image Require opencv on ubuntu, osx and android tested on Nougat (OpenCV Manager 3.0) armeabi To embed (output file name is o.png) ./embed image-file binary-file To extract ./extract steganography-file Compiled and run on os x, ubuntu, windows and android Most beautiful ratio image/binary 3MBytes/64KBytes https://www.youtube.com/watch?v=U--p5WoZ1mU
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