Browse free open source PDF Readers and projects for Windows and Mac below. Use the toggles on the left to filter open source PDF Readers 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
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 1
    AlphaCentauri

    AlphaCentauri

    AlphaCentauri is a completely free Office tools application.

    AlphaCentauri is a completely free office application, with various utilities resembling those distributed commercially on Windows. Functionalities are still quite limited compared to the commercial products, but more features will be added soon. Please note that update v1.1.0 has full featured programs, however you will see a watermark with "trial version" details. This is due to some features were used through Nevron's very useful and awesome libraries. Unfortunately, these libraries and dev tools are also very expensive. This should not interfere with working comfortably and saving clean docs. This is just a release version until I get my head around building those trialed features from scratch. If watermarks turn out annoying, one can always download the v.1.0.3 with basic features and UI.
    Downloads: 0 This Week
    Last Update:
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