Open Source Java Software Development Software - Page 9

Java Software Development Software

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Browse free open source Java Software Development Software and projects below. Use the toggles on the left to filter open source Java Software Development Software by OS, license, language, programming language, and project status.

  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

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  • 1
    HikariCP

    HikariCP

    A solid, high-performance, JDBC connection pool at last

    HikariCP is a high-performance JDBC connection pooling library designed to offer minimal overhead and maximum throughput. It aims for simplicity and stability, concentrating on fast connection acquisition and minimal latency under load. Its internals manage a pool of connections aggressively but smartly, with options such as leak detection, timeout thresholds, and adaptive connection retirement. Because it avoids heavy internal locking, it scales well in high-concurrency environments, making it a popular choice in microservices and high-throughput web backends. Metrics and instrumentation hooks (for example, via Dropwizard or Micrometer) allow runtime visibility into pool usage and health. HikariCP’s focus is on doing the essential work of pooling correctly and efficiently, rather than bundling extraneous features.
    Downloads: 6 This Week
    Last Update:
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  • 2
    ImGui Java

    ImGui Java

    JNI based binding for Dear ImGui

    imgui-java is a comprehensive Java binding for Dear ImGui, the popular immediate-mode GUI library used for real-time tools and debug interfaces. This binding allows Java applications—including those using LWJGL or JOGL—to leverage ImGui’s fast and flexible GUI features without switching languages. With support for native backends and OpenGL rendering, imgui-java is perfect for game engines, development tools, and editors that need an intuitive GUI system. It includes integrations for multiple platforms and rendering contexts, with regular updates to match upstream ImGui releases.
    Downloads: 6 This Week
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  • 3
    Java Design Patterns

    Java Design Patterns

    Design patterns implemented in Java

    A comprehensive, community-maintained collection of design pattern implementations in Java, offering well-documented, educational examples to help developers understand and apply common architectural solutions. All designs should be as simple as possible. You should start with KISS, YAGNI, and Do The Simplest Thing That Could Possibly Work principles. Complexity and patterns should only be introduced when they are needed for practical extensibility. The design patterns are now available as an e-book. Design patterns can speed up the development process by providing tested, proven development paradigms.
    Downloads: 6 This Week
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  • 4
    Kafdrop

    Kafdrop

    Kafka Web UI

    Kafdrop is a web UI for viewing Kafka topics and browsing consumer groups. The tool displays information such as brokers, topics, partitions, and consumers, and lets you view messages. This project is a reboot of Kafdrop 2.x, dragged kicking and screaming into the world of Java 17+, Kafka 2.x, Helm and Kubernetes. It's a lightweight application that runs on Spring Boot and is dead-easy to configure, supporting SASL and TLS-secured brokers.
    Downloads: 6 This Week
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  • Fully Managed MySQL, PostgreSQL, and SQL Server Icon
    Fully Managed MySQL, PostgreSQL, and SQL Server

    Automatic backups, patching, replication, and failover. Focus on your app, not your database.

    Cloud SQL handles your database ops end to end, so you can focus on your app.
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  • 5
    OpenRewrite

    OpenRewrite

    Automated mass refactoring of source code

    The OpenRewrite project is a mass source code refactoring ecosystem. Reduce 1000s of hours of static code analysis fixes to minutes. Turn a four-month migration project into four hours of work. Patch security vulnerabilities across 100s of repositories at once. OpenRewrite automates code refactoring and remediation tasks for you, enabling developers to deliver more business value. OpenRewrite's refactoring engine and recipes will always be open-source. Build tool plugins like OpenRewrite Gradle Plugin and OpenRewrite Maven Plugin help you run these recipes on one repository at a time. Moderne is a complementary product that executes OpenRewrite recipes at scale on hundreds of millions of lines of code and enables mass-committing of results. Moderne freely runs a public service for the benefit of thousands of open-source projects.
    Downloads: 6 This Week
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  • 6
    Rakudo

    Rakudo

    Rakudo – Raku on MoarVM, JVM, and JS

    This is Rakudo, a Raku Programming Language compiler for the MoarVM, JVM, and Javascript virtual machines. Rakudo is distributed under the terms of the Artistic License 2.0. For more details, see the full text of the license in the file LICENSE. This directory contains only the Rakudo compiler itself; it does not contain any of the modules, documentation, or other items that would normally come with a full Raku distribution. If you're after more than just the bare compiler, please download the latest Rakudo Star package.
    Downloads: 6 This Week
    Last Update:
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  • 7
    google-java-format

    google-java-format

    Reformats Java source code to comply with Google Java Style

    google-java-format is a program that reformats Java source code to comply with Google Java Style. The formatter can act on whole files, on limited lines, on specific offsets, passing through to standard-out (default) or altered in-place. There is no configurability as to the formatter's algorithm for formatting. This is a deliberate design decision to unify our code formatting on a single format. The formatter can be used in software that generates java to output more legible java code. Just include the library in your maven/gradle/etc. configuration. A google-java-format IntelliJ plugin is available from the plugin repository. To install it, go to your IDE's settings and select the Plugins category. Click the Marketplace tab, search for the google-java-format plugin, and click the Install button.
    Downloads: 6 This Week
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  • 8
    iText

    iText

    iText for Java represents the next level of SDKs for developers

    iText for Java represents the next level of SDKs for developers who want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit, and enhance PDF documents, iText can be a boon to nearly every workflow. iText Suite refers to the complete line of products comprising the open-source iText Core PDF library and its add-ons. The iText Suite is a fully-featured SDK for PDF development that allows you to seamlessly embed extensive PDF functionality into your software or workflows. The iText Suite builds on over a decade of lessons learned from iText 5 (and iTextSharp) development. The latest release of iText, version 8, is a simpler, more performant and extensible library that is ready to handle the increased challenges of today's document workflows, one add-on at a time.
    Downloads: 6 This Week
    Last Update:
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  • 9
    SDK Manager

    SDK Manager

    Manager for the Android SDK, wraps 'sdkmanager' and 'avdmanager'.

    Manager for the Android SDK, wraps 'sdkmanager', 'avdmanager' and 'emulator'. Packages: List, install, uninstall and update packages. Option to choose Channel. AVDs: Create, list and start AVDs. Many options to launch. After you check "Accept licenses" it will automatically accept them.
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    Downloads: 158 This Week
    Last Update:
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  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

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  • 10
    JCppEdit v4.0

    JCppEdit v4.0

    Best IDE for Beginners

    JCppEdit is a free as well as "best IDE for Beginners" and is your one-stop IDE for all your coding needs. Whether you need to finish your Java project or submit your first HTML web page or perhaps have a need to code in C language while executing a java program into a Java IDE, JCppEdit will help you achieve your goals easily. Exploring your project and detecting an error in your code is much easier. You will not waste time detecting errors before compiling codes because you will get a real-time notification whenever you are making any mistake in your C, C++, and Java codes. You can also create multiple projects, delete, rename, cut and copy multiple files and folders in your project folder using project explorer. The programming languages that can be compiled and executed include; C, C++, Java, Java applet, C graphics, HTML, CSS, JavaScript and XML. If you are looking for a hassle-free, coding experience, then JCppEdit is the best option for you. The smooth interface and lig
    Downloads: 55 This Week
    Last Update:
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  • 11
    Jython is a Java implementation of the Python language. It allows users to compile Python source code to Java byte codes, and run the resulting bytecodes on any Java Virtual Machine. It is the successor to JPython.
    Downloads: 31 This Week
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  • 12
    Publish your junit test report in pdf format. Plug and Play integration. Home page: http://junitpdfreport.sourceforge.net/
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    Downloads: 86 This Week
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  • 13
    MOA - Massive Online Analysis

    MOA - Massive Online Analysis

    Big Data Stream Analytics Framework.

    A framework for learning from a continuous supply of examples, a data stream. Includes classification, regression, clustering, outlier detection and recommender systems. Related to the WEKA project, also written in Java, while scaling to adaptive large scale machine learning.
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    Downloads: 37 This Week
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  • 14
    Jasmin is a Java Assembler. It takes ASCII descriptions for Java classes, written in a simple assembler-like syntax. It converts them into binary Java .class class files suitable for loading into a Java Virtual Machine implementation.
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    Downloads: 80 This Week
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  • 15

    ConcatPDF

    PDF Concatenation Tool

    ConcatPDF is the tool to concatenate PDF files. It can concatenate, extract, encrypt, decrypt, configure PDF files, convert image files to PDF. GUI version and CUI version are both available. iText.NET is iText porting on .NET Framework by J#. This library allows you to generate PDF, (X)HTML, XML, RTF files on Microsoft.NET Framework including ASP.NET.
    Downloads: 35 This Week
    Last Update:
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  • 16

    JPerf

    Java Performance and Scalability Testing

    JPerf is a simple framework for writing and running automated performance and scalability tests. It's like JUnit but for performance. Simple write a class that implements PerfTest then create a PerfTestRunner instance to run the test. *** JPerf has moved! Please go to https://github.com/andygrove/jperf for the current version ***
    Downloads: 77 This Week
    Last Update:
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  • 17

    OpenXava

    Automatic frontend engine for Java

    Automatic frontend engine for Java. Write just the domain classes in plain Java. Get a web application ready for production.
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    Downloads: 24 This Week
    Last Update:
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  • 18
    Eclipse 4diac

    Eclipse 4diac

    Eclipse 4diac the open source solution for industrial automation

    Eclipse 4diac is an open source PLC environment allowing to implement industrial control solutions in a vendor neutral way. 4diac implements IEC 61499 extending IEC 61131-3 with improved support for controller to controller communication and dynamic reconfiguration. With that 4diac provides the infrastructure for Industrie 4.0 and industrial IoT. Further information and the latest versions can be found here: https://eclipse.dev/4diac/
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    Downloads: 31 This Week
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  • 19
    Niagara AX Community Modules
    A library of modules for the Tridium Niagara AX platform. AX programmers are encouraged to use and expand the library.
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    Downloads: 46 This Week
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  • 20
    AnySoftKeyboard

    AnySoftKeyboard

    Android (f/w 2.1+) on screen keyboard for multiple languages

    The only Android keyboard you'll ever need. Free as in speech and Free as in beer. Android (f/w 4.0.3+, API level 15+) on screen keyboard for multiple languages.
    Downloads: 5 This Week
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  • 21
    Codenvy

    Codenvy

    Codenvy

    Cloud workspaces for development teams. One-click Docker environments to create workspaces with production runtimes. Team onboarding and collaboration with workspace automation and permissions letting devs sync their desktop IDE or use our gorgeous Eclipse Che IDE. Workspace platform for DevOps to manage workspaces at scale with programmable and customizable infrastructure.
    Downloads: 5 This Week
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  • 22
    Cucumber JVM

    Cucumber JVM

    Cucumber for the JVM

    Cucumber-JVM is a pure Java implementation of Cucumber. You can run it with the tool of your choice. Cucumber-JVM also integrates with all the popular Dependency Injection containers. It’s simple. Whether open source or commercial, our collaboration tools will boost your engineering team's performance by employing Behavior-Driven Development (BDD). And with our world-class training, take it to places it’s never been. Validate executable specifications against your code on any modern development stack. 40+ million open source downloads, the #1 tool for BDD. Define the feature files with all your stakeholders using Behavior-Driven Development (BDD). Automatically create documentation that’s up to date and easily shareable.
    Downloads: 5 This Week
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  • 23
    leetcode-editor

    leetcode-editor

    Do Leetcode exercises in IDE

    Do Leetcode exercises in IDE, support leetcode.com and leetcode-cn.com, to meet the basic needs of doing exercises.Support theoretically: IntelliJ IDEA PhpStorm WebStorm PyCharm RubyMine AppCode CLion GoLand DataGrip Rider MPS Android Studio. The login accounts of the two websites are not interoperable and the corresponding users need to be configured when switching websites. You can also refresh and load questions if you are not logged in, but you cannot submit it. Input the content and press Enter to search , press again to search for the next one. It can only search under the question bank node. Clean up the files in the configured cache directories. The cache directories of the two websites are different and only the current configured websites are cleaned up. Carefully clean up cases without submitting.
    Downloads: 5 This Week
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  • 24
    Eclipse Checkstyle Plug-in

    Eclipse Checkstyle Plug-in

    Integrates Checkstye into the Eclipse IDE

    The Eclipse Checkstyle plug-in integrates the Checkstyle Java code auditor into the Eclipse IDE. The plug-in provides real-time feedback to the user about violations of rules that check for coding style and possible error prone code constructs.
    Downloads: 21 This Week
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  • 25
    ecl1

    ecl1

    Provides a toolset for developing HISinOne extensions

    ecl1 is a set of tools, implemented as Eclipse plugin, that supports the creation of HISinOne extensions. It adds support for creating a new HISinOne Extension and special checkers for the enrollment of lectures.
    Downloads: 36 This Week
    Last Update:
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