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

  • One Monitoring Tool for IT, OT and Cloud | Free Trial Icon
    One Monitoring Tool for IT, OT and Cloud | Free Trial

    Vendor-agnostic monitoring across on-prem servers, cloud platforms and OT devices, all in one dashboard. No more tool sprawl.

    Modern infrastructure spans data centers, cloud platforms and factory floors, and every blind spot between them is a risk. PRTG supports SNMP, WMI, SSH and other standard protocols to monitor IT, OT and hybrid environments through one customizable dashboard. Build the views your team needs, from network health to application performance, without switching tools. Try PRTG free for 30 days now.
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
    Start Free
  • 1
    NestProfessor Programmer Edition
    This is a SDK which can nest/layout the part/geometry/polygon on the material or sheet intelligently, you can get the best utilization of the materials, this SDK also support read/write DXF/DWG files and part-in-part nesting. New nesting lagorithm is implenmented, more good to support true shape part or material.
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    Downloads: 2 This Week
    Last Update:
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  • 2

    FenixSped

    Integração com Webservers do Projeto Sped, NFSe e GNRE

    Projeto inclui serviços da nota fiscal eletronica nacional, notas fiscais eletrônicas de serviços e GNRE. Pode ser utilizado como biblioteca com funções prontas ou chamar via linha de comandos para assinatura digital, validações e comunicações com webservices. NFe 3.10 NFSe Abrasf, DSF e ISS.NET GNRE-PE
    Downloads: 1 This Week
    Last Update:
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  • 3
    Almond Framework
    Almond Java Application Framework is an easy to use Swing based framework for Java applications. Almond is very much inspired by the K Desktop Environment.
    Downloads: 0 This Week
    Last Update:
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  • 4
    AndroidRate

    AndroidRate

    Library to help you promote your Android app

    AndroidRate is a library to help you promote your Android app by prompting users to rate the app after using it for a few days.
    Downloads: 0 This Week
    Last Update:
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  • Ship Agents Faster Icon
    Ship Agents Faster

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

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
    Start Free
  • 5
    This project is a Java Tag Project that will help you to mask the data into view layer, with tags that we usually need, and usually have problem to find and/or use. Another goal is to make the webdesigner work easier, faster and finally better.
    Downloads: 0 This Week
    Last Update:
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  • 6
    API Java for persistence of system settings in files, that can be recorded in the format Properties or XML, implements cryptography to protect data that will be recorded, has a graphical interface for encrypting and decrypting using one key.
    Downloads: 0 This Week
    Last Update:
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