Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Tinker is a hot-fix solution library for Android, it supports dex, library and resources update without reinstall apk.

OpenRefine is a free, open source power tool for working with messy data and improving it

🚀 Ultimate Android Reference - Your Road to Become a Better Android Developer

Open-Source Subscription Billing & Payments Platform

🔥 A library for cropping image in a smart way that can identify the border and correct the cropped image. 智能图片裁剪框架。自动识别边框，手动调节选区，使用透视变换裁剪并矫正选区；适用于身份证，名片，文档等照片的裁剪。

signal-cli provides an unofficial commandline, JSON-RPC and dbus interface for the Signal messenger.

Extract tables from PDF files

Converts a pdf file into a text file while keeping the layout of the original pdf. Useful to extract the content from a table in a pdf file for instance. This is a subclass of PDFTextStripper class…

A Layoutmanager that must be used with RecyclerView. When list is scrolled views are moved by circular trajectory

📷 Instagram private API in Java

Light version of Facebook. Light both in the weight and in the use.

A (fork of a) slick visualization for your source code

Congress for Android, an app for tracking Congress.

Source code to support the online course Start Using Selenium WebDriver with Java

Keyboard + Camera, OCR instead of typing.

Download Whatsapp Status Media of Your Friends & Family Without Asking them Directly.

Artificial Intelligence for Humans

Android app used to log and monitor activities done throughout the day

Simples aplicativo Android que obtém a posição do celular e envia as coordenadas de latitude e longitude para um servidor, criando um relatório de movimentação. Útil para em caso de perda ou roubo …

Basic location tracking app for Android