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.
Cross-platform multi-protocol VPN software
Open Source H.264 Codec
Dynamic instrumentation toolkit for developers
Repo for Blokada apps
A shadowsocks client for Android
The Mullvad VPN client app for desktop and mobile
Extension that allows you to intercept and edit HTTP/HTTPS requests
Cuckoo Sandbox is for automated analysis of malware
For full, incremental, compressed and encrypted backups or archives
Tool to access videos, messaging, and other popular apps
Ad-blocking for your Android
Helps with conducting forensics of mobile devices
Free DNS based Ad Blocker for Android
Brook is a cross-platform strong encryption and not detectable proxy
Turns UDP traffic into encrypted UDP/fakeTCP/ICMP traffic
Vulnerable Android application that shows examples of vulnerabilities
Web Debugging Proxy for macOS, iOS, and Android
A fast, secure, stable web browser powered by Chromium and Trident.
Manual for mobile app security testing and reverse engineering
Open source secure password manager
A protocol agnostic application layer denial of service attack.
Protect personal spaces and possessions without compromising privacy
ESP8266 firmware for performing deauthentication attacks
cross-platform, encryption application
A novel Android app store focused on security, privacy, and usability