APM, (Application Performance Management) tool for large-scale distributed systems.

🔎 Open source distributed and RESTful search engine.

1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

Leading free and open-source face recognition system

📈 Capturing JVM- and application-level metrics. So you know what's going on.

Statistical Machine Intelligence & Learning Engine

configuration library for JVM languages using HOCON files

Drools is a rule engine, DMN engine and complex event processing (CEP) engine for Java

Kafka Web UI

Thumbnailator - a thumbnail generation library for Java

A scalable, distributed Time Series Database.

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID…

Brings the popular ruby faker gem to Java

An Engine-Agnostic Deep Learning Framework in Java

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.

Extracts Exif, IPTC, XMP, ICC and other metadata from image, video and audio files

Plugin Framework for Java (PF4J)

ssh, scp and sftp for java

Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP

Distributed tracing for spring cloud

jmxtrans

A pure-Java Markdown processor based on a parboiled PEG parser supporting a number of extensions

fork of the popular jsch library

Graph+Semantics: Import/Export RDF from Neo4j. SHACL Validation, Model mapping and more.... If you like it, please ★ ⇧

A library for communication with a Minecraft client/server.

Lightning Memory Database (LMDB) for Java: a low latency, transactional, sorted, embedded, key-value store

JMX on Capsaicin

Java Agent for Memory Measurements

Java bindings for Skia

Truly open source API gateway with native OpenAPI support. Written in Java, it is easily extensible, supports legacy XML and SOAP, and is optimized for container deployments.