Showing 43658 open source projects for "java on java"

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  • 1
    PolarDB-X

    PolarDB-X

    PolarDB-X is a cloud native distributed SQL Database

    PolarDB-X is a cloud-native distributed SQL database designed to handle high concurrency, massive storage, and complex querying scenarios. It features a shared-nothing architecture that decouples computing from storage, providing scalability and flexibility for various applications.
    Downloads: 7 This Week
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  • 2
    Source Code Hunter

    Source Code Hunter

    Source code analysis of Spring, MyBatis, Redis, Netty, and more

    ...It’s a valuable resource for Java developers preparing for interviews, system design discussions, or those looking to strengthen their ability to read and learn from production-level code.
    Downloads: 1 This Week
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  • 3
    Druid

    Druid

    Database connection pool written in Java

    Druid is an open-source database connection pool written in Java. Druid is able to provide an extensive number of powerful monitoring functionalities for database connection. Druid has been deployed to the maven central repository. Druid provides a monitoring feature that can be implemented through filter-chain. It also comes with WallFilter, that is based on the SQL semantic analysis to protect from SQL injection attacks.
    Downloads: 1 This Week
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  • 4
    RESTHeart

    RESTHeart

    Rapid API Development with MongoDB

    RESTHeart is an open-source middleware that exposes MongoDB databases as a RESTful API, allowing developers to interact with MongoDB using HTTP-based queries instead of traditional drivers.
    Downloads: 5 This Week
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  • 5
    r2dbc-postgresql

    r2dbc-postgresql

    Postgresql R2DBC Driver

    r2dbc-postgresql is a reactive PostgreSQL driver for the JVM based on the R2DBC (Reactive Relational Database Connectivity) specification. It allows non-blocking, asynchronous access to PostgreSQL databases, making it ideal for reactive Java or Kotlin applications built with frameworks like Spring WebFlux.
    Downloads: 1 This Week
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  • 6
    Discourse Network Analyzer (DNA)

    Discourse Network Analyzer (DNA)

    Discourse Network Analyzer (DNA)

    The Java software Discourse Network Analyzer (DNA) is a qualitative content analysis tool with network export facilities. You import text files and annotate statements that persons or organizations make, and the program will return network matrices of actors connected by shared concepts.
    Downloads: 4 This Week
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  • 7
    Takes

    Takes

    True object-oriented Java web framework without NULLs

    Takes is a true object-oriented and immutable Java8 web development framework. Pay attention that UTF-8 encoding is set on the command line. The entire framework relies on your default Java encoding, which is not necessarily UTF-8 by default. To be sure, always set it on the command line with file.encoding Java argument. We decided not to hard-code "UTF-8" in our code mostly because this would be against the entire idea of Java localization, according to which a user always should have a choice of encoding and language selection. ...
    Downloads: 0 This Week
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  • 8

    Yet Another Java Service Wrapper

    Install java, groovy and native applications as services or daemons

    YAJSW is an Apache licensed pure java alternative for tanuki java service wrapper. It implements a multitude of additional functions and can be easily extended with groovy scripts. JSW configurations can be easily ported.
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    Downloads: 940 This Week
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  • 9
    ViaVersion

    ViaVersion

    Allows the connection of newer clients to older server versions

    Allows the connection of higher client versions to lower server versions - it works on any platform you can think of. The base ViaVersion jar runs on Paper and Velocity. We also have projects integrating ViaVersion to run on Fabric, Forge, Bungee, Sponge, or as a standalone proxy to join from basically any client version on any server version from the past decade. See HERE for an overview of the different Via* projects. Note that ViaVersion will be able to run best on either Paper servers or...
    Downloads: 27 This Week
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  • 10
    Netty

    Netty

    An event-driven asynchronous network application framework

    Netty is an asynchronous, event-driven networking framework for the JVM that simplifies building high-performance clients and servers. It wraps Java NIO with a channel/handler pipeline model, enabling clean composition of codecs, TLS, and application logic with minimal overhead. Its ByteBuf abstractions, buffer pooling, and zero-copy techniques help reduce GC pressure and improve throughput under heavy I/O. Support for common protocols—HTTP/1.1, HTTP/2, WebSocket, and raw TCP/UDP—makes it a foundation for RPC frameworks, proxies, and messaging systems. ...
    Downloads: 14 This Week
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  • 11
    SpongeAPI

    SpongeAPI

    A Minecraft plugin API

    A mature Minecraft plugin API (not including an implementation), licensed under the MIT License. If you do not have Gradle installed then use ./gradlew for Unix systems or Git Bash and gradlew.bat for Windows systems in place of any 'gradle' command. Sponge will use a javac version of at least 11. If an older JDK is used to launch Gradle, JDK 11 will be downloaded automatically. SpongeAPI is the tool developers use to create plugins for the Sponge platform.
    Downloads: 3 This Week
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  • 12
    Sonic Agent

    Sonic Agent

    Agent of Sonic cloud real machine platform

    Agent of Sonic Cloud Real Machine Platform. Sonic is a platform that integrates remote control debugging and automated testing of mobile devices, and strives to create a better use experience for global developers and test engineers.
    Downloads: 6 This Week
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  • 13
    Zeebe

    Zeebe

    Distributed Workflow Engine for Microservices Orchestration

    Automate processes at scale with unprecedented performance and resilience. Zeebe is the workflow and decision engine that powers Camunda Platform 8. Zeebe’s cloud-native design provides the performance, resilience, and security enterprises need to future-proof their process orchestration efforts. Zeebe distributes data across all brokers in a cluster with storage directly on the server filesystem. If one broker goes down, another can replace it with no data loss. This pre-configured...
    Downloads: 18 This Week
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  • 14
    xManager

    xManager

    Ad-Free, New Features & Freedom

    xManager supports Android. Chrome OS and Windows 11 now have Android support so xManager technically works there (and any system that can emulate Android). There are no current plans to natively support Windows, MacOS, Linux, etc. Android devices have CPUs. Merged is a combination of Armeabi-v7a and Arm64-v8a architecture. Armeabi-v7a is the modern arch that supports floating point operations, and a multi-threading safe is used on multi-cpu devices. It is also 32-bit. If you are determined...
    Downloads: 18 This Week
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  • 15
    J2ME-Loader

    J2ME-Loader

    A J2ME emulator for Android

    J2ME-Loader is a J2ME emulator for Android. It supports most 2D and 3D games (including Mascot Capsule 3D ones). Emulator has a virtual keyboard, individual settings for each application, scaling support. This project is a fork of J2meLoader. Enabling filtering in some cases can greatly reduce performance. Disable this option if the game is too slow. Image flickering issues can be fixed by enabling the "Immediate processing mode" option.
    Downloads: 18 This Week
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  • 16
    OpenDataLoader PDF

    OpenDataLoader PDF

    PDF Parser for AI-ready data. Automate PDF accessibility

    OpenDataLoader PDF is an open-source document processing system designed to convert complex PDF files into structured, AI-ready formats such as Markdown, JSON, and HTML while preserving layout, hierarchy, and semantic meaning. It focuses on enabling downstream use cases like retrieval-augmented generation (RAG), knowledge extraction, and document intelligence pipelines by maintaining accurate reading order and spatial metadata through bounding boxes. The tool combines deterministic parsing...
    Downloads: 10 This Week
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  • 17
    JMusicBot

    JMusicBot

    A Discord music bot that's easy to set up and run yourself

    ...The main purpose of having the source public is to show the capabilities of the libraries, to allow others to understand how the bot works, and to allow those knowledgeable about java, JDA, and Discord bot development to contribute.
    Downloads: 1 This Week
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  • 18
    Nacos

    Nacos

    Dynamic Naming and Configuration Service

    Nacos is an easy-to-use, one-stop solution for dynamic service discovery, configuration and service management that allows you to easily build cloud native applications and microservices platforms. It supports almost all types of services, such as Kubernetes service, Spring Cloud RESTFul service, or Dubbo/gRPC service. Nacos is lightweight, easy to deploy and production-ready, having originated from time-tested internal products from Alibaba Group. It’s highly adaptive to cloud...
    Downloads: 12 This Week
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  • 19
    tigerbeetle

    tigerbeetle

    The financial transactions database designed for mission critical safe

    TigerBeetle is production-ready on Linux and seamlessly integrated with major programming languages. TigerBeetle is a financial transactions database designed for mission-critical safety and performance to power the next 30 years of OLTP. TigerBeetle redesigns the distributed database storage engine and consensus protocol for the OLTP workload. This solves the problem of OLTP write contention to unlock three orders of magnitude more performance than a general purpose (OLGP) database. The...
    Downloads: 25 This Week
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  • 20
    Siddhi Core Libraries

    Siddhi Core Libraries

    Stream Processing and Complex Event Processing Engine

    ...Agile development experience with SQL-like query language and graphical drag-and-drop editor supporting event simulation. Lightweight runtime that can natively run on Kubernetes, Docker, VM, or bare metal, and embedded in any Java or Python application. Scalable, and highly available distributed event processing on Kubernetes, with NATS Streaming and Siddhi Kubernetes Operator.
    Downloads: 3 This Week
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  • 21
    JBake

    JBake

    Java based open source static site/blog generator for developers

    JBake is a Java-based, open source, static site/blog generator for developers & designers. The project uses Gradle 4.9+ as the build system. We configured the gradle check style Plugin to run with the check task. It does not break the build if convention violations are found. But prints a warning and generates a report. Source available on GitHub, licensed under MIT License.
    Downloads: 3 This Week
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  • 22
    WebMagic

    WebMagic

    A scalable web crawler framework for Java

    WebMagic is a scalable crawler framework. It covers the whole lifecycle of crawler, downloading, url management, content extraction and persistent. It can simplify the development of a specific crawler. WebMagic is a simple but scalable crawler framework. You can develop a crawler easily based on it. WebMagic has a simple core with high flexibility, a simple API for html extracting. It also provides annotation with POJO to customize a crawler, and no configuration is needed. Some other...
    Downloads: 5 This Week
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  • 23
    OpenRocket

    OpenRocket

    Model-rocketry aerodynamics and trajectory simulation software

    OpenRocket is a free and fully featured simulation software for designing, analyzing, and optimizing model rockets before physical construction and launch. It provides a comprehensive environment where users can assemble rocket components, visualize designs in both 2D and 3D, and simulate flight behavior using accurate aerodynamic and physics models. The software incorporates six-degree-of-freedom flight simulation, allowing it to model real-world dynamics such as stability, drag, thrust,...
    Downloads: 24 This Week
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  • 24
    Fabric API

    Fabric API

    Essential hooks for modding with Fabric

    Essential hooks for modding with Fabric. Fabric API is the library for essential hooks and interoperability mechanisms for Fabric mods. Examples include exposing functionality that is useful but difficult to access for many mods such as particles, biomes and dimensions. Adding events, hooks and APIs to improve interoperability between mods. Essential features such as registry synchronization and adding information to crash reports. An advanced rendering API designed for compatibility with...
    Downloads: 24 This Week
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  • 25
    Reactor Netty

    Reactor Netty

    TCP/HTTP/UDP/QUIC client/server with Reactor over Netty

    Reactor Netty offers non-blocking and backpressure-ready TCP/HTTP/UDP/QUIC clients & servers based on Netty framework. With Gradle from repo.spring.io or Maven Central repositories (stable releases only). Reactor is a fourth-generation reactive library, based on the Reactive Streams specification, for building non-blocking applications on the JVM. Reactor is fully non-blocking and provides efficient demand management. It directly interacts with Java's functional API, CompletableFuture,...
    Downloads: 7 This Week
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