Browse free open source Security apps and projects for Android below. Use the toggles on the left to filter open source Security apps by OS, license, language, programming language, and project status.
Dynamic instrumentation toolkit for developers
Cross-platform multi-protocol VPN software
Open Source H.264 Codec
Repo for Blokada apps
A shadowsocks client for Android
For full, incremental, compressed and encrypted backups or archives
Cuckoo Sandbox is for automated analysis of malware
The Mullvad VPN client app for desktop and mobile
Extension that allows you to intercept and edit HTTP/HTTPS requests
Tool to access videos, messaging, and other popular apps
Ad-blocking for your Android
Brook is a cross-platform strong encryption and not detectable proxy
Free DNS based Ad Blocker for Android
Helps with conducting forensics of mobile devices
Turns UDP traffic into encrypted UDP/fakeTCP/ICMP traffic
Web Debugging Proxy for macOS, iOS, and Android
Manual for mobile app security testing and reverse engineering
A fast, secure, stable web browser powered by Chromium and Trident.
A protocol agnostic application layer denial of service attack.
A novel Android app store focused on security, privacy, and usability
Store all your passwords in one secure encrypted database.
Open source tool that improves identification of vulnerabilities
Vulnerable Android application that shows examples of vulnerabilities
ESP8266 firmware for performing deauthentication attacks
Keybase Go library, client, service, OS X, iOS, Android, Electron