DAO oriented database mapping framework for Java

Insanely fast ECS (Entity Component System) for Java

A full featured, stand-alone, high-performance HTTP server and client written entirely in plain Java

An efficient map viewer for Minecraft seed in a nice GUI with utilities without ever needing to install Minecraft.

HPPC-RT, fork of CarrotSearch's for Realtime

A simple graph library for java

A very fast and lightweight (no dependency) library for creating ODS (Open Document Spreadsheet, mainly for Calc) files in Java. It's a Martin Schulz's SimpleODS fork

An extremely fast parser and formatter of standardized date and date-times supporting RFC-3339 (ISO-8601 profile) and more.

Fast simple zero-dependency Java library to parse fixed length files

Knife is a Java top-down parser generator for building parsers from grammars in BNF format.

Pyranid is a zero-dependency JDBC interface for modern Java applications.

This is a simple Gantt chart implementation used to measure performance of processes

A general purpose 2D game engine for practice and simple game implementations in Java. Using no external libraries.

JSON tiny library written in modern Java

bit manipulation library for Java and Kotlin

Expresso is a lightweight, zero-dependency Java expression evaluator library that allows you to evaluate dynamic expressions in your Java applications.

Soklet is minimalist infrastructure for Java webapps and microservices.

An Http Client for Java with no external dependencies and a fluent interface

A tiny Java class without dependencies to generate ANSI color codes

a small template engine written in java without dependency