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

  • 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.
    Try Free
  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
    Start Free
  • 1
    Highly dynamic application generator for creating Eclipse RCPs.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    A PHP class library for writing powerfull reloadless web user interfaces using Ajax (DHTML+server-side) style
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    DruideDB is an embedded database (based on Object/XML mapping files) for Java applications. Both source code (DAO) and persistence layer (mapping) is generated. This DB stores everything as strings and handle auto-increments and multiple PKs.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    The EmfUtils provides UI enhancements for EMF (Eclipse Modeling Framework). It helps to locate the non-generated, self-written code in sources generated with EMF. You may install it from the Eclipse Update Site URL http://emfutils.sourceforge.net/updates
    Downloads: 0 This Week
    Last Update:
    See Project
  • 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
  • 5
    JAXX is a powerful XML user interface language for Java. JAXX source files compile into ordinary Java classes, making integration a snap. JAXX features advanced data binding and event handling, and uses (fully compiled) Java as its scripting language
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    phpAnnotations provides Annotations support similar to Java or C# in your PHP projects. Annotations gives you the ability to add meta information/configuration to your classes by readable at runtime using reflections.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next
MongoDB Logo MongoDB