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

  • 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
  • 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
  • 1

    XML2CSV Spreadsheet Converter

    Converts XML to CSV using a spreadsheet app

    An MS Excel VBA macro converts XML to CSV. It demonstrates this capability by converting an XML-based Continuity of Care Document (CCD) into a slim Comma Separated Value (CSV) file.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 2
    from the makers of RapidSVN Easy SVN Client for non-technical users with handy features like auto-update etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Two full-fledged object-oriented classes dealing with dates (class cDate) and spans of time (class cPeriod) written in C++. The datecalc-cpp project is a sub-project of tbvs-hr (https://sourceforge.net/projects/tbvs-hr).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Two full-fledged classes dealing with dates (class cDate) and spans of time class cPeriod) written in PHP. The datecalc project is a sub-project of tbvs (http://sourceforge.net/projects/tbvs).
    Downloads: 0 This Week
    Last Update:
    See Project
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Previous
  • You're on page 1
  • Next
MongoDB Logo MongoDB