Stars
Ghidra is a software reverse engineering (SRE) framework
Open Source Identity and Access Management For Modern Applications and Services
Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.
Tsunami is a general purpose network security scanner with an extensible plugin system for detecting high severity vulnerabilities with high confidence.
Open source version of Google Authenticator (except the Android app)
Open Location Code is a library to generate short codes, called "plus codes", that can be used as digital addresses where street addresses don't exist.
GreenDroid is a development library for the Android platform. It makes UI developments easier and consistent through your applications.
OpenKeychain is an OpenPGP implementation for Android.
Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP
A Java library used to read and extract data from NFC EMV credit cards (Android/PCSC).
Astrid: Android's #1 Task Management Application
The Guacamole project is now Apache Guacamole (http://guacamole.apache.org/). This repository has been repurposed as the base for the Apache Guacamole packages built for Glyptodon Enterprise.
This project has ended, but ChatSecure iOS continues. For Android, please use Conversations or Zom instead
Extensible and flexible API Management. Add your own functionality with simple Java plugins.
TLS-Attacker is a Java-based framework for analyzing TLS libraries. It can be used to manually test TLS clients and servers or as as a software library for more advanced tools.
A port of gnupg to Android (UNMAINTAINED!)
Photo and Video Filtering App for Privacy
c99koder / lastfm-android
Forked from Ramblurr/lastfm-androidThis repository is no longer being maintained. Please visit https://github.com/lastfm/lastfm-android
Enhanced version of the popular ConnectBot SSH and telnet client
notifies android phones from irc private messages