MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
- mock-server
- proxy
- java-client
- javascript-client
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 Transactions, Full-Text indexing and Reactive Queries.
An API Gateway built on Spring Framework and Spring Boot providing routing and more.
Cyberduck is a libre FTP, SFTP, WebDAV, Amazon S3, Backblaze B2, Microsoft Azure & OneDrive and OpenStack Swift file transfer client for Mac and Windows.
cglib - Byte Code Generation Library is high level API to generate and transform Java byte code. It is used by AOP, testing, data access frameworks to generate dynamic proxy objects and intercept field access.
Implementation of Ripple effect from Material Design for Android API 9+
Desktop app for managing BibTeX and BibLaTeX (.bib) libraries
Set of extra Transitions on top of Jetpack Transitions Library
:ballot_box_with_check: [Cheatsheet] Tips and tricks for Android Development
Ribbon is a Inter Process Communication (remote procedure calls) library with built in software load balancers. The primary usage model involves REST calls with various serialization scheme support.
A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
- cross-language
- fast
- jit
- multiple-language
A small Android library allowing you to have a smooth and customizable horizontal or circular indeterminate ProgressBar
OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.
Maxwell's daemon, a mysql-to-json kafka producer
A lightweight indicator like in nexus 5 launcher
A TextView that automatically resizes text to fit perfectly within its bounds.
The official AWS SDK for Java 1.x (In Maintenance Mode, End-of-Life on 12/31/2025). The AWS SDK for Java 2.x is available here: https://github.com/aws/aws-sdk-java-v2/
A tool to help eliminate NullPointerExceptions (NPEs) in your Java code with low build-time overhead
XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.
Traditional roguelike game with pixel-art graphics and simple interface
Phoenix Pull-to-Refresh
- android
- java
- pull-to-refresh
- animation
A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others
- java
- bitset
- roaring-bitmaps
- roaringbitmap
These are the sample Bounded Contexts from the book "Implementing Domain-Driven Design" by Vaughn Vernon: http://vaughnvernon.co/?page_id=168
Terasology - open source voxel world