2807 projects for "open java projects" with 2 filters applied:

  • $300 in Free Credit Towards Top Cloud Services Icon
    $300 in Free Credit Towards Top Cloud Services

    Build VMs, containers, AI, databases, storage—all in one place.

    Start your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.
    Get Started
  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

    More flexibility. More control.

    Generate interest, access liquidity without selling, and execute trades seamlessly. All in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • 1
    Open Wearables

    Open Wearables

    Self-hosted platform to unify wearable health data

    Open Wearables is an open-source initiative that aims to provide a community-driven ecosystem for wearable device software and interoperability by connecting sensor data, activity tracking, and health insights across multiple platforms and devices. Instead of relying on closed vendor ecosystems, the project provides standardized data models and APIs that let developers and hobbyists collect, sync, and analyze biometric and environmental data from wearables, DIY sensors, and open hardware projects.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 2
    Open Hospital

    Open Hospital

    Open Hospital - Hospital Information System

    ...After the successful installation and use, the St. Luke Hospital is the first of a long list of hospitals that found this software useful. All the work on this software is done as an open-source[2] project using only open-source development software. Open Hospital Web Site: https://www.open-hospital.org Support Requests: https://www.open-hospital.org/contact For latest versions: https://www.open-hospital.org/download For previous versions: https://sourceforge.net/projects/openhospital/files
    Leader badge
    Downloads: 27 This Week
    Last Update:
    See Project
  • 3
    Vikunja

    Vikunja

    The to-do app to organize your life

    Vikunja is a modern to-do list and personal organization platform designed to help individuals and teams keep track of tasks, projects, and life goals in one place with intention and simplicity. It’s a self-hosted, open-source app with a backend API and frontend clients that let you create tasks, organize them into lists or projects, set due dates and priorities, and collaborate with teammates or family members. Unlike many simplistic check-off lists, Vikunja provides options for nested tasks, recurring activities, and board views that give you flexibility in how you structure work or personal goals. ...
    Downloads: 19 This Week
    Last Update:
    See Project
  • 4
    solidtime

    solidtime

    Modern open-source time-tracking app

    solidtime is a modern open-source time-tracking application built for freelancers, agencies, and teams that need structure beyond a simple timer. It centers on fast time entry and tracking, then layers in the operational pieces that make time data useful, such as projects, tasks, and clients. It supports billable rates at multiple levels, enabling realistic billing setups that differ by project, member, or organization.
    Downloads: 4 This Week
    Last Update:
    See Project
  • Forever Free Full-Stack Observability | Grafana Cloud Icon
    Forever Free Full-Stack Observability | Grafana Cloud

    Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

    Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
    Create free account
  • 5
    Vue Manage System

    Vue Manage System

    Vue3, Element Plus, TypeScript

    Vue Manage System is a multifunctional backend admin template built with Vue 3, Element Plus, and TypeScript. It offers a rapid, developer-friendly foundation for building management system UIs. Structured admin UI framework with Vue 3 and TypeScript. Integrated Element Plus UI component library. Clean and consistent layout suitable for diverse backend apps. Well-suited for projects like ERP, CRM, CMS development. Easy customization of dashboards and components.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    timelinize

    timelinize

    Store your data from all your accounts and devices

    ...With automatic linking between events and optional categories or tags, timelines become easier to navigate and filter for large datasets, making this tool practical for history projects, product roadmaps, research archives, or personal journals.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 7
    Koito

    Koito

    Koito is a modern, themeable scrobbler

    Koito is a lightweight, self-hostable collaborative knowledge base and note-taking platform designed to help teams and individuals capture, organize, and link ideas with the reliability of a local or private server rather than relying on managed SaaS tools. It combines concepts from wikis, Zettelkasten systems, and modern note apps by letting you create interconnected notes, bidirectional links, and structured collections that mirror how knowledge naturally grows. The interface supports...
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    Siddhi Core Libraries

    Siddhi Core Libraries

    Stream Processing and Complex Event Processing Engine

    ...Agile development experience with SQL-like query language and graphical drag-and-drop editor supporting event simulation. Lightweight runtime that can natively run on Kubernetes, Docker, VM, or bare metal, and embedded in any Java or Python application. Scalable, and highly available distributed event processing on Kubernetes, with NATS Streaming and Siddhi Kubernetes Operator.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    FFTW.jl

    FFTW.jl

    Julia bindings to the FFTW library for fast Fourier transforms

    This package provides Julia bindings to the FFTW library for fast Fourier transforms (FFTs), as well as functionality useful for signal processing. These functions were formerly a part of Base Julia. Users with a build of Julia based on Intel's Math Kernel Library (MKL) can use MKL for FFTs by setting a preference in their top-level project by either using the FFTW.set_provider!() method, or by directly setting the preference using Preferences.jl. Note that this choice will be recorded for...
    Downloads: 1 This Week
    Last Update:
    See Project
  • 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
  • 10
    Frankfurter

    Frankfurter

    Currency data API

    Frankfurter is an open-source currency exchange rate API that provides reliable financial data based on reference rates from institutional sources such as the European Central Bank. It is designed to be simple, transparent, and free to use, with no API key requirements or usage limits, making it particularly attractive for developers and small projects.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Apache Polaris

    Apache Polaris

    Apache Polaris, the interoperable, open source catalog

    Apache Polaris is an open-source metadata catalog and data management service designed to manage Apache Iceberg tables in modern data lakehouse environments. It provides a centralized catalog that allows multiple compute engines and analytics systems to interact with the same datasets through a standardized interface. By implementing the Iceberg REST catalog API, Polaris enables distributed data platforms to access shared table metadata without tightly coupling storage systems and query...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    Apache Seata

    Apache Seata

    High-performance, open source distributed transaction solution

    Seata is a distributed transaction solution for microservices that provides consistent, cross-service commits without forcing every team to adopt the same persistence model. Its architecture separates responsibilities into a global coordinator and per-service participants, so business services remain decoupled while transactions are orchestrated centrally. Multiple modes are supported—AT (automatic, SQL-based with undo logs), TCC (try-confirm-cancel), Saga (long-running compensation), and...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    Java-Kalender

    Java-Kalender

    Platformunabhängiger Kalender zum Eintragen von Ereignissen

    Platformunabhängiger Kalender zum Eintragen von Ereignissen mit Erinnerungsfunktion. Beinhaltet alle deutschen Feiertage. Zwischen den Ansichten Jahresansicht, Monatsansicht, Wochenansicht und Tagesansicht kann umgeschaltet werden. Der Kalender kann im Hintergrund laufen und ist personalisierbar. Automatische Erinnerungsfunktion für nahende Ereignisse / Feiertage. Synchronisation über einen FTP-Server möglich.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    Java Treeview - An Open Source, Extensible Viewer for Microarray Data in the PCL or CDT format
    Leader badge
    Downloads: 35 This Week
    Last Update:
    See Project
  • 15
    Mifos - Open Source Core Banking

    Mifos - Open Source Core Banking

    Democratizing Financial Services Worldwide

    The Mifos Stack provides API-driven core banking infrastructure in the cloud. Apache Fineract (https://github.com/apache/fineract/) is the back-end core banking platform originated by the Mifos Initiative. Mifos X acts as the reference web and mobile apps for staff and customers providing an out of the box ready-to-deploy solution on top of Apache Fineract along with reporting, payments orchestration and other ancillary solutions. More than 20 million customers are reached by 400+...
    Leader badge
    Downloads: 183 This Week
    Last Update:
    See Project
  • 16
    GeoTools, the Java GIS toolkit

    GeoTools, the Java GIS toolkit

    Toolkit for working with and mapping geospatial data

    GeoTools is an open source (LGPL) Java code library which provides standards compliant methods for the manipulation of geospatial data. GeoTools is an Open Source Geospatial Foundation project. The GeoTools library data structures are based on Open Geospatial Consortium (OGC) specifications.
    Leader badge
    Downloads: 301 This Week
    Last Update:
    See Project
  • 17
    GeoServer
    GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. Designed for interoperability, it publishes data from any major spatial data source using open standards: WMS, WFS, WCS, WPS and REST
    Leader badge
    Downloads: 46,635 This Week
    Last Update:
    See Project
  • 18
    Calcoo is a scientific calculator (with both RPN and algebraic modes) designed to provide maximum usability.
    Leader badge
    Downloads: 39 This Week
    Last Update:
    See Project
  • 19
    Django-CRM - Free Open Source  Software

    Django-CRM - Free Open Source Software

    Enterprise CRM software + Tasks management, Email marketing and more!

    Django CRM system is easy to use and can be run on a personal laptop for a private entrepreneur (for example) or on a cloud web server for a large enterprise. Written in Python, CRM is an open-source software package for managing customer interactions and sales. This free CRM software is a powerful tool designed to optimize workflows, and support data-driven decisions. Key features include role-based access control, intuitive navigation, powerful filtering, and search functionalities. The...
    Downloads: 35 This Week
    Last Update:
    See Project
  • 20
    Java 2D & 3D visual entity relationship design & modeling (ERD,SQL) for Oracle,MSSQL,Postgres,MySQL,...,Database change&dictionary management, Swing Data Binding, Apache FOP Renderer for dot matrix printers,Sparx Enterprise Architect Reports + more
    Downloads: 3 This Week
    Last Update:
    See Project
  • 21
    Freeplane

    Freeplane

    Application for Mind Mapping, Knowledge and Project Management

    Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way. -> https://freeplane.org/ -> https://github.com/freeplane/freeplane
    Leader badge
    Downloads: 6,056 This Week
    Last Update:
    See Project
  • 22
    ProjeQtOr - Project Management Tool

    ProjeQtOr - Project Management Tool

    Quality based Open Source Project Organiser.

    Complete, Collaborative, Quality based Open Source Project Organizer. ProjeQtOr (formely Project'Or RIA) is a collaborative project management software. It's a tool designed to be a Project Organizer as a Rich Internet Application. Web based, it is very easy to use and targets to include every feature needed to the management of your projects. Listed as one of the underdogs project management softwares, the frequent updates, the very active support and the growing community refers to it as a tool that is worth a try.
    Leader badge
    Downloads: 396 This Week
    Last Update:
    See Project
  • 23
    DavMail POP/IMAP/SMTP/Caldav to Exchange
    Ever wanted to get rid of Outlook ? DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP gateway allowing users to use any mail client with Exchange and Office 365, even from the internet through Outlook Web Access on any platform, tested on MacOSX, Linux and Windows
    Leader badge
    Downloads: 1,117 This Week
    Last Update:
    See Project
  • 24
    JasperReports Library

    JasperReports Library

    Free Java Reporting Library

    JasperReports Library is the world's most popular open source business intelligence and reporting engine. It is entirely written in Java and it is able to use data coming from any kind of data source and produce pixel-perfect documents that can be viewed, printed or exported in a variety of document formats including HTML, PDF, Excel, OpenOffice and Word. The project is also available at: https://github.com/TIBCOSoftware/jasperreports Jaspersoft Studio is the open source report designer for the JasperReports Library. ...
    Leader badge
    Downloads: 1,552 This Week
    Last Update:
    See Project
  • 25
    Mindwtr

    Mindwtr

    A complete Getting Things Done (GTD) productivity system for desktop a

    Mindwtr: The Privacy-First GTD System Mindwtr is a Getting Things Done (GTD) productivity tool designed for "Mind Like Water." It runs completely offline—no accounts, no tracking, and no subscriptions. The Core GTD Workflow Capture: Instantly offload thoughts to your Inbox. Clarify: Process tasks rapidly with the built-in "2-Minute Rule" timer. Organize: Sort tasks by Contexts (@work, @home), Areas, and Projects. Reflect: Keep your system trustworthy with a guided Weekly...
    Leader badge
    Downloads: 105 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next
MongoDB Logo MongoDB