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

  • Catch Bugs Before Your Customers Do Icon
    Catch Bugs Before Your Customers Do

    Real-time error alerts, performance insights, and anomaly detection across your full stack. Free 30-day trial.

    Move from alert to fix before users notice. AppSignal monitors errors, performance bottlenecks, host health, and uptime—all from one dashboard. Instant notifications on deployments, anomaly triggers for memory spikes or error surges, and seamless log management. Works out of the box with Rails, Django, Express, Phoenix, Next.js, and dozens more. Starts at $23/month with no hidden fees.
    Try AppSignal Free
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 1
    Configuration Repository System is a set applications and tooling to centralize configurations for applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    It is a lejos emulator for the lego RCX. It can be used to test your code without having to go through the painful process of continuously uploading the code to the RCX. It does this by providing a emulation of the major parts of the lejos library.
    Downloads: 0 This Week
    Last Update:
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  • 3
    Hayrick is a tool for finding, correlating and analyzing information in large amounts of textual input, like log files. Hayrick optionally employs Eclipse as a convenient working environment for setting up and running analysis jobs.
    Downloads: 0 This Week
    Last Update:
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  • 4
    JDiag is an open source system information/diagnostics tool written in Java. It gathers information from various places in the system and places it into one log file for easy analysis by computer professionals.
    Downloads: 0 This Week
    Last Update:
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  • Host LLMs in Production With On-Demand GPUs Icon
    Host LLMs in Production With On-Demand GPUs

    NVIDIA L4 GPUs. 5-second cold starts. Scale to zero when idle.

    Deploy your model, get an endpoint, pay only for compute time. No GPU provisioning or infrastructure management required.
    Try Free
  • 5
    "Java log viewer" is a GUI to easily view the java application logs generated by the "java.util.logging" package. The log must be formatted by the XMLFormatter class. It provides facilities in order to filter, to sort and to find log records.
    Downloads: 0 This Week
    Last Update:
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  • 6
    A generic java based distributed performance testing platform specifically for testing clustered or distributed applications and or frameworks. The framework itself is clustered and coordinated with www.terracotta.org
    Downloads: 0 This Week
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  • 7
    LabMinder is an encapsulation of the VMware Lab Manager SOAP API within Ant tasks. The intended usage of this project is to enable Lab Manager automation through Ant scripts.
    Downloads: 0 This Week
    Last Update:
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  • 8
    LogiTest is a suite of applications to aid in the testing of web sites and web based applications. Applications in the suite include: LogiTest for functional and regression testing, LogiMonitor for real-time monitoring, and LogiLoad for load testing.
    Downloads: 0 This Week
    Last Update:
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  • 9
    MQ Analyticizer
    A opensource program to collect statistics and accounting information from MQ and store it into a database, which will be displayed to the end user in a visually attractive to manner to better analyze the performance of their environment.
    Downloads: 0 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

    BigQuery automates data prep, analysis, and predictions with built-in AI assistance.

    Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
    Try Free
  • 10
    Real time micro benchmark multi-lingual suite (RTMB) provides a good way to measure the deterministic quality of hardware, an operating system, or a Java Virtual Machine. RTMB consists of benchmarks in C, C++ and Java
    Downloads: 0 This Week
    Last Update:
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  • 11
    barde
    A log player for "The Fourth Coming" ("T4C", http://www.the4thcoming.com). Given a log-file, this tool will replay a T4C game you've played before. It will have built-in functionnalities like : merging log files together, searching and cleaning
    Downloads: 0 This Week
    Last Update:
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