Showing 443 open source projects for "java runtime"

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  • 1
    JetBrains Runtime

    JetBrains Runtime

    Runtime environment based on OpenJDK for running IntelliJ products

    JetBrainsRuntime is the custom Java Runtime Environment (JRE) distribution maintained by JetBrains that enhances the standard OpenJDK to better support JetBrains products and provide a robust, optimized runtime for IDEs like IntelliJ IDEA, Rider, and other tools. It includes performance-tuned garbage collectors, desktop integration fixes, font rendering improvements, enhanced GTK support on Linux, and additional patches not available in stock JDK builds to ensure smoother, more stable behavior for large-scale IDE usage. ...
    Downloads: 2 This Week
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  • 2
    Android Runtime for NativeScript

    Android Runtime for NativeScript

    NativeScript for Android using v8

    Contains the source code for the NativeScript's Android Runtime. NativeScript is a framework that enables developers to write truly native mobile applications for Android and iOS using JavaScript and CSS. Each mobile platform has its own ecosystem and offers completely different development tools and language(s) - Java for Android and Objective C (Swift) for iOS. In order to translate JavaScript code to the corresponding native APIs some kind of proxy mechanism is needed. ...
    Downloads: 14 This Week
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  • 3
    AgentScope Java

    AgentScope Java

    Agent-Oriented Programming for Building LLM Applications

    ...The framework includes runtime controls such as safe interruption and graceful cancellation to manage agent execution robustly in production environments. It also supports human-in-the-loop intervention, allowing developers or users to inject guidance at any point during reasoning while preserving state and tool context. Built with enterprise needs in mind, AgentScope Java integrates into traditional Java stacks and provides structured abstractions for memory, workflows, and tool invocation.
    Downloads: 7 This Week
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  • 4
    Chicory

    Chicory

    Native JVM WebAssembly runtime

    Chicory is a WebAssembly runtime designed specifically for the Java Virtual Machine, enabling developers to run Wasm modules entirely within Java applications without requiring native dependencies or JNI. Implemented in pure Java, it provides a portable and secure execution environment that can run anywhere the JVM is available, including cloud, desktop, and embedded systems.
    Downloads: 3 This Week
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  • 5
    vfox

    vfox

    A cross-platform and extendable version manager with support for Java

    If you switch between development projects which expect different environments, specifically different runtime versions or ambient libraries, or you are tired of all kinds of cumbersome environment configurations, vfox is the ideal choice for you.
    Downloads: 72 This Week
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  • 6
    1JPM

    1JPM

    Maven/Gradle alternative with a twist: its a single Java file

    1JPM (1 Java Project Manager) is a Java-based, single-file build tool that generates Maven pom.xml files and wraps Maven execution with enhanced plugins. It offers a familiar Java code-driven configuration style, reducing verbose XML and providing better IDE integration and runtime safety features
    Downloads: 5 This Week
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  • 7
    Micronaut Data

    Micronaut Data

    Ahead of Time Data Repositories

    ...Micronaut Data instead moves this model into the compiler. Both GORM and Spring Data use regular expressions and pattern matching in combination with runtime generated proxies to translate a method definition on a Java interface into a query at runtime. No such runtime translation exists in Micronaut Data and this work is carried out by the Micronaut compiler at compilation time.
    Downloads: 0 This Week
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  • 8
    Badass JLink Plugin

    Badass JLink Plugin

    Create a custom runtime image of your modular application

    ...For JavaFX and other common stacks, it provides conveniences that smooth over typical jlink hurdles and platform differences. As a result, you get predictable, fast-starting binaries that are easy to ship across environments without requiring a preinstalled Java runtime.
    Downloads: 8 This Week
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  • 9
    J2ObjC

    J2ObjC

    A Java to iOS Objective-C translation tool and runtime

    ...J2ObjC supports most Java language and runtime features required by client-side application developers, including exceptions, inner and anonymous classes, generic types, threads and reflection. JUnit test translation and execution is also supported. J2ObjC cannot convert Android binary applications. Developers must have source code for their Android app, which they either own or are licensed to use.
    Downloads: 4 This Week
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  • 10
    AWS IoT Device SDK for Java v2

    AWS IoT Device SDK for Java v2

    Next generation AWS IoT Client SDK for Java

    Next-generation AWS IoT Client SDK for Java using the AWS Common Runtime. This SDK is built on the AWS Common Runtime, a collection of libraries (aws-c-common, aws-c-io, aws-c-mqtt, aws-c-http, aws-c-cal, aws-c-auth, s2n...) written in C to be cross-platform, high-performance, secure, and reliable. The libraries are bound to Java by the aws-crt-java package. Consuming this SDK via Maven is the preferred method of consuming it.
    Downloads: 0 This Week
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  • 11
    Light-4J

    Light-4J

    A fast, lightweight and more productive microservices framework

    Light means lightweight, lightning-fast and shedding light on how to program with modern Java SE for cloud-native deployment. I had been working on the Java EE platforms since early 2000 and suffered performance and productivity issues. In 2014, I realized that the IT industry was moving from Monolithic to Microservices and from on-premise data centers to the public clouds. To reduce the production cost for my applications, I need to find a lightweight platform that has a small memory...
    Downloads: 7 This Week
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  • 12
    x-minecraft-launcher

    x-minecraft-launcher

    An Open Source Minecraft Launcher with Modern UX

    ...Built with modern web and desktop technologies, it focuses on performance, modular architecture, and cross-platform compatibility across Windows, Linux, and macOS systems. The project also supports different authentication systems and allows advanced configuration of Java runtime parameters and game settings.
    Downloads: 122 This Week
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  • 13
    Pkl

    Pkl

    A configuration as code language with rich validation and tooling

    ...Configurations in Pkl are type-safe and support validation constraints (e.g. bounds, relations) so many errors can be caught before deployment. The language is embeddable, meaning it can run inside applications (Java, Swift, Go, etc.) to load configuration dynamically with the same safety guarantees. There’s also code generation support: writing Pkl modules can generate matching classes or data structures in target languages (Swift, Go, Java, Kotlin) so runtime config and statically typed code stay in sync.
    Downloads: 8 This Week
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  • 14
    PDFsam

    PDFsam

    PDFsam, a desktop application to split, merge, mix, rotate PDF files

    ...PDFsam Visual is a powerful tool to visually compose PDF files, reorder pages, delete pages, split, merge, rotate, encrypt, decrypt, extract text, convert to grayscale, crop PDF files. PDFsam Basic is written using JavaFX. Since version 4 it is released as a self-contained application and bundles a jlinked JDK while version 3 requires a Java Runtime Environment 8 with JavaFx installed in order to run.
    Downloads: 191 This Week
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  • 15
    JITWatch

    JITWatch

    Log analyser / visualiser for Java HotSpot JIT compiler

    Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.
    Downloads: 3 This Week
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  • 16
    Micronaut

    Micronaut

    Micronaut Application Framework

    ...With Micronaut you can build message-driven applications, command-line applications, HTTP servers, and more whilst for Microservices in particular Micronaut also provides distributed configuration. This is achieved by pre-computing the framework infrastructure at compilation time which reduces the logic required at runtime for the application to work. Compatible with Java, Groovy, and Kotlin, with Scala on the roadmap.
    Downloads: 0 This Week
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  • 17
    JUnit 5

    JUnit 5

    Programmer-friendly testing framework for Java and the JVM

    The 5th major version of the programmer-friendly testing framework for Java and the JVM. JUnit 5 is the next generation of JUnit. The goal is to create an up-to-date foundation for developer-side testing on the JVM. This includes focusing on Java 8 and above, as well as enabling many different styles of testing. Official CI build server for JUnit 5. Used to perform quick checks on submitted pull requests and for build matrices including the latest released OpenJDK and early access builds of...
    Downloads: 87 This Week
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  • 18
    VisualVM

    VisualVM

    VisualVM is an All-in-One Java Troubleshooting Tool

    ...You can also define applications manually by JMX connection. For each process VisualVM shows basic runtime information: PID, main class, arguments passed to java process, JVM version, JDK home, JVM flags and arguments and System properties.
    Downloads: 18 This Week
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  • 19
    JSON Schema Validator

    JSON Schema Validator

    A fast Java JSON schema validator that supports draft V4, V6, V7, V201

    ...As it is a key component in our light-4j microservices framework to validate request/response against OpenAPI specification for light-rest-4j and RPC schema for light-hybrid-4j at runtime, performance is the most important aspect in the design.
    Downloads: 16 This Week
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  • 20
    GraalPy

    GraalPy

    A Python 3 implementation built on GraalVM

    GraalPy is a high-performance implementation of the Python language for the JVM built on GraalVM. GraalPy is a Python 3.11 compliant runtime. It has first-class support for embedding in Java and can turn Python applications into fast, standalone binaries. GraalPy is ready for production running pure Python code and has experimental support for many popular native extension modules.
    Downloads: 24 This Week
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  • 21
    XXPermissions

    XXPermissions

    Android Permissions Framework, Adapt to Android 16

    XXPermissions is an Android runtime permission management framework designed to simplify how developers request and handle permissions across different Android versions. The project focuses on providing a unified API that abstracts the complexity introduced by evolving Android permission models, including newer platform requirements. It aims to improve developer productivity by reducing repetitive permission-handling code and minimizing compatibility issues. The library emphasizes...
    Downloads: 1 This Week
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  • 22
    BotCity Framework Core Python

    BotCity Framework Core Python

    BotCity Framework - Python

    ...Operate any UI interface independent of the technology or platform (desktop, web, terminal). BotCity is a platform to develop, deploy, manage and maintain automation. Automation can be developed in Python or Java using open-source libraries that are market standard. Develop, deploy, manage and scale your Automation Ops using All in One platform that provides task queue, runtime environment management, reports, alerts, logs and much more.
    Downloads: 1 This Week
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  • 23
    testng

    testng

    TestNG testing framework

    TestNG is a testing framework inspired from JUnit and NUnit but introduces some new functionalities that make it more powerful and easier to use. Run your tests in arbitrarily big thread pools with various policies available (all methods in their own thread, one thread per test class, etc...).
    Downloads: 11 This Week
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  • 24
    J2CL

    J2CL

    Java to Closure JavaScript transpiler

    J2CL is a lightweight transpiler developed by Google that converts Java source code into highly optimized JavaScript designed to work seamlessly with the Closure Compiler. It allows developers to write applications in Java while targeting web environments, enabling strong type safety and code reuse across platforms. Unlike monolithic frameworks, J2CL focuses purely on transpilation, leaving optimization, bundling, and runtime concerns to the broader toolchain, which provides flexibility in modern development workflows. ...
    Downloads: 2 This Week
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  • 25
    CPU Features

    CPU Features

    A cross platform C99 library to get cpu features at runtime

    cpu_features is a cross-platform C library developed by Google that provides a simple and efficient way to detect available CPU features at runtime across a wide range of architectures and operating systems. It enables applications to determine which instruction sets (such as SSE, AVX, or NEON) are supported on the host machine, allowing developers to optimize performance dynamically. The library supports numerous architectures—including x86, ARM, AArch64, MIPS, POWER, RISCV, LoongArch, and...
    Downloads: 3 This Week
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