OpenStreetMap PBF format multithreaded reader

Convert coordinates between latitude/longitude and UTM or UPS

A minimal, responsive, and feature-rich Jekyll theme for technical writing.

Sudoku made for Android

A Sudoku generator and solver for Java and Android.

The smallest & fastest library for really easy, totally type-safe unit conversions in TypeScript & JavaScript.

An elegant way to convert quantities between different units.

Image loading for Android and Compose Multiplatform.

Free Tracks Optimizer Online Service

DisplayLink driver installer for Debian and Ubuntu based Linux distributions.

Ordnance Survey OpenSpace Android SDK, an alternative to Google Maps API enabling access to Ordnance Survey data for the UK

GDAL is an open source MIT licensed translator library for raster and vector geospatial data formats.

GeoPackage Core Java Library

Apache Commons Imaging (previously Sanselan) is a pure-Java image library

Multithreaded PNG optimizer written in Rust

Tools for parsing and using USGS SRTM 1 Arc-Second Global (30m) and ALOS World 3D-30m (AW3D30) elevation data

A high-level cross-platform 2D game development API

Sky Map (formerly Google Sky Map, open sourced in 2012)

A GitHub Action for installing and configuring the gcloud CLI.

Web-based Cryptocurrency miner, built with Vue.js

a programming typeface

OpenLayers

Mapbox Vector Tile specification

An Android particle system library for displaying confetti!

Multiple choice questions answer game for android (Quiz game).

An Android open source reversi game

Interactive, thoroughly customizable maps in native Android powered by vector tiles and OpenGL.

OpenMapTiles Vector Tile Schema Implementation

Protobuf Plugin for Gradle

gRPC and protocol buffers for Android, Kotlin, Swift and Java.