Showing 12153 open source projects for "java open source"

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  • Retool your internal operations Icon
    Retool your internal operations

    Generate secure, production-grade apps that connect to your business data. Not just prototypes, but tools your team can actually deploy.

    Build internal software that meets enterprise security standards without waiting on engineering resources. Retool connects to your databases, APIs, and data sources while maintaining the permissions and controls you need. Create custom dashboards, admin tools, and workflows from natural language prompts—all deployed in your cloud with security baked in. Stop duct-taping operations together, start building in Retool.
    Build an app in Retool
  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

    Ideal for internal IT departments or managed service providers (MSPs)

    Atera’s AI agents don’t just assist, they act. From detection to resolution, they handle incidents and requests instantly, taking your IT management from automated to autonomous.
    Learn More
  • 1
    nopCommerce

    nopCommerce

    The most popular open-source eCommerce shopping cart solution

    nopCommerce is the best open-source eCommerce shopping cart solution. nopCommerce is free, and it is the most popular ASP.NET eCommerce platform. The product is being developed and supported by the professional team since 2008. nopCommerce has been downloaded more than 3,000,000 times. The active developer community has more than 250,000 members. nopCommerce runs on ASP.NET Core 5 with an MS SQL 2012 (or higher) backend database. nopCommerce is cross-platform, and you can run it on Windows, Linux, or Mac. nopCommerce supports Docker and MySQL out of the box, so you can easily run nopCommerce on a Linux machine. nopCommerce supports PostgreSQL database. nopCommerce fully supports web farms. ...
    Downloads: 5 This Week
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  • 2
    ChaosTools.jl

    ChaosTools.jl

    Tools for the exploration of chaos and nonlinear dynamics

    A Julia module that offers various tools for analyzing nonlinear dynamics and chaotic behavior. It can be used as a standalone package, or as part of DynamicalSystems.jl. All further information is provided in the documentation, which you can either find online or build locally by running the docs/make.jl file. ChaosTools.jl is the jack-of-all-trades package of the DynamicalSystems.jl library: methods that are not extensive enough to be a standalone package are added here. You should see the...
    Downloads: 7 This Week
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  • 3
    Hi.Events

    Hi.Events

    Open-source event management and ticket selling platform

    Hi.Events is an open-source event management and ticketing platform designed to help organizers manage events efficiently. It provides features for event creation, ticket sales, attendee registration, and real-time analytics. The platform is highly customizable, allowing users to set up public or private events, integrate payment gateways, and monitor event metrics through an intuitive dashboard.
    Downloads: 3 This Week
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  • 4
    OpenMeter

    OpenMeter

    Metering and Billing for AI, API and DevOps

    OpenMeter is an open-source metering and billing platform designed to collect, aggregate, and analyze usage events from APIs, cloud infrastructure, and software services in real time, enabling flexible usage-based billing for SaaS, AI, and DevOps offerings. It supports high-scale event ingestion and deduplication to accurately record how customers consume billable resources such as API calls, compute time, or storage, and then correlates that usage with payment systems and billing plans to automate invoicing and revenue recognition. ...
    Downloads: 5 This Week
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  • Grafana: The open and composable observability platform Icon
    Grafana: The open and composable observability platform

    Faster answers, predictable costs, and no lock-in built by the team helping to make observability accessible to anyone.

    Grafana is the open source analytics & monitoring solution for every database.
    Learn More
  • 5
    CocoIndex

    CocoIndex

    ETL framework to index data for AI, such as RAG

    CocoIndex is an open-source framework designed for building powerful, local-first semantic search systems. It lets users index and retrieve content based on meaning rather than keywords, making it ideal for modern AI-based search applications. CocoIndex leverages vector embeddings and integrates with various models and frameworks, including OpenAI and Hugging Face, to provide high-quality semantic understanding.
    Downloads: 5 This Week
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  • 6
    Krayin CRM

    Krayin CRM

    Free & Opensource Laravel CRM solution for SMEs and Enterprises

    Krayin CRM is a hand-tailored CRM framework built on some of the hottest open-source technologies such as Laravel (a PHP framework) and Vue.js a progressive Javascript framework. Free & Opensource Laravel CRM solution for SMEs and Enterprises for complete customer lifecycle management. We also have a forum for any type of concerns, feature requests, or discussions. Please visit: Krayin CRM Forums.
    Downloads: 5 This Week
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  • 7
    EasyAppointments

    EasyAppointments

    Easy!Appointments - Self Hosted Appointment Scheduler

    Easy!Appointments is an open-source appointment management system that helps businesses schedule and manage client appointments efficiently. It offers a web-based interface where clients can book appointments online, while administrators can manage staff schedules, services, and customer data. The system is highly customizable and can be integrated with other tools like Google Calendar, making it ideal for small businesses, clinics, and service providers.
    Downloads: 4 This Week
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  • 8
    Numaflow

    Numaflow

    Kubernetes-native platform to run massively parallel data/streaming

    Numaflow is a Kubernetes-native tool for running massively parallel stream processing. A Numaflow Pipeline is implemented as a Kubernetes custom resource and consists of one or more source, data processing, and sink vertices. Numaflow installs in a few minutes and is easier and cheaper to use for simple data processing applications than a full-featured stream processing platform.
    Downloads: 6 This Week
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  • 9
    protoactor-go

    protoactor-go

    Proto Actor - Ultra fast distributed actors for Go, C# and Java/Kotlin

    Built on cloud-native technologies. Taking advantage of proven stability and performance. Asynchronous and Distributed by design. High-level abstractions like Actors and Virtual Grains. Capable of millions of messages per second cross-process communication. Write systems that self-heal using supervisor hierarchies. The Actor Model provides a higher level of abstraction for writing concurrent and distributed systems. It alleviates the developer from having to deal with explicit locking and...
    Downloads: 0 This Week
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  • Yeastar: Business Phone System and Unified Communications Icon
    Yeastar: Business Phone System and Unified Communications

    Go beyond just a PBX with all communications integrated as one.

    User-friendly, optimized, and scalable, the Yeastar P-Series Phone System redefines business connectivity by bringing together calling, meetings, omnichannel messaging, and integrations in one simple platform—removing the limitations of distance, platforms, and systems.
    Learn More
  • 10
    Nomad

    Nomad

    Easy-to-use, flexible, and performant workload orchestrator

    A simple and flexible workload orchestrator to deploy and manage containers and non-containerized applications across on-prem and clouds at scale. Single binary that integrates into existing infrastructure. Easy to operate on-prem or in the cloud with minimal overhead. Orchestrate applications of any type, not just containers. First class support for Docker, Windows, Java, VMs, and more. Bring orchestration benefits to existing services. Achieve zero downtime deployments, improved...
    Downloads: 0 This Week
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  • 11
    DHTMLX Gantt

    DHTMLX Gantt

    GPL version of Javascript Gantt Chart

    DHTMLX Gantt is a full-featured JavaScript library for creating interactive Gantt charts in web applications. It supports drag-and-drop, critical path visualization, and customizable task hierarchies, making it ideal for project planning tools. Its modular architecture and API provide extensive customization for developers.
    Downloads: 5 This Week
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  • 12
    Wealthfolio

    Wealthfolio

    A Beautiful Private and Secure Desktop Investment Tracking Application

    Wealthfolio is a simple, desktop-based investment tracker. Your financial data is stored safely on your own computer Ditch the spreadsheets, forget about those pesky subscription fees, and no more worries about SaaS services playing around with your data. Forget juggling spreadsheets or compromising privacy with online apps. Choose Wealthfolio's simple, secure approach to manage your finances. Gather all your investment and savings accounts in one place. See everything at a glance, from...
    Downloads: 7 This Week
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  • 13
    EC2Instances.info

    EC2Instances.info

    Amazon EC2 instance comparison site

    ec2instances.info is an open-source project that powers an intuitive, searchable comparison site for Amazon EC2 instance types, helping developers and cloud architects quickly evaluate compute options without the friction of navigating multiple AWS console screens. The site aggregates key metrics — including CPU, memory, storage, networking specs, and pricing — across many instance families, and lets users filter, sort, and visually compare configurations side by side. ...
    Downloads: 5 This Week
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  • 14
    OpenOps

    OpenOps

    The batteries-included, No-Code FinOps automation platform

    OpenOps is an open-source, no-code FinOps automation platform designed to help organizations manage and optimize cloud financial operations with minimal manual effort. At its core, OpenOps provides a visual workflow builder that lets teams construct automated processes for cloud cost optimization, budgeting, tagging, allocation, forecasting, and anomaly management without writing code, making complex financial workflows approachable for both technical and financial users. ...
    Downloads: 5 This Week
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  • 15
    Strapi

    Strapi

    API creation made simple, secure and fast

    Strapi is the most advanced open-source headless CMS for creating powerful and customizable APIs with no effort. Built with 100% JavaScript, Strapi lets you easily create self-hosted, customizable, and performant content APIs. Strapi projects can be hosted on any platform of your choice, and you can work with any database you prefer. All your favorite dev tools-- from static site generators and databases to hosting platforms work with Strapi, so you're never locked in. ...
    Downloads: 5 This Week
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  • 16
    Request Tracker (RT)

    Request Tracker (RT)

    Request Tracker, an enterprise-grade issue tracking system

    Request Tracker is an open-source, enterprise-grade issue and ticket tracking system. It helps organizations manage workflows, customer requests, and internal project tasks efficiently.​
    Downloads: 3 This Week
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  • 17
    folium

    folium

    Python data, Leaflet.js maps

    folium builds on the data wrangling strengths of the Python ecosystem and the mapping strengths of the leaflet.js library. Manipulate your data in Python, then visualize it in on a Leaflet map via folium. folium makes it easy to visualize data that’s been manipulated in Python on an interactive leaflet map. It enables both the binding of data to a map for choropleth visualizations as well as passing rich vector/raster/HTML visualizations as markers on the map. The library has a number of...
    Downloads: 8 This Week
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  • 18
    PyTorch Forecasting

    PyTorch Forecasting

    Time series forecasting with PyTorch

    PyTorch Forecasting aims to ease state-of-the-art time series forecasting with neural networks for both real-world cases and research alike. The goal is to provide a high-level API with maximum flexibility for professionals and reasonable defaults for beginners. A time series dataset class that abstracts handling variable transformations, missing values, randomized subsampling, multiple history lengths, etc. A base model class that provides basic training of time series models along with...
    Downloads: 7 This Week
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  • 19
    Mautic

    Mautic

    Mautic, open source marketing automation software

    Mautic is the world’s largest open source marketing automation project. With over 200,000 organizations using Mautic and over 1,000 community volunteers, we empower businesses by making it easy to manage their marketing across a range of channels. Stay up to date about initiatives, releases and strategy via our blog. Mautic began with a single focus, equality. The Mautic community believes in giving every person the power to understand, manage, and grow their business or organization. ...
    Downloads: 7 This Week
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  • 20
    Notes

    Notes

    Note taking application, write down your thoughts.

    Notes is an open source, cross-platform note-taking application. Write down your thoughts with ease, and always have them with you with this simple, streamlined app.
    Downloads: 2 This Week
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  • 21
    arcgis-rest-js

    arcgis-rest-js

    compact, modular JavaScript wrappers for the ArcGIS REST API

    Compact, modular JavaScript wrappers for the ArcGIS REST API that run in Node.js and modern browsers. ArcGIS REST JS is supported in Node.js 8.x and above. It requires additional packages to polyfill Fetch and FormData. ArcGIS REST JS is supported in the same browsers as the ArcGIS API for JavaScript. ArcGIS REST JS takes advantage of web standards that are supported in all modern desktop browsers and most mobile browsers. ArcGIS REST JS can be deployed with a variety of build tools.
    Downloads: 6 This Week
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  • 22
    F2

    F2

    An elegant, interactive and flexible charting library for mobile

    F2 is an out-of-the-box visualization engine focused on the mobile terminal, oriented to conventional statistical charts, perfectly supporting the H5 environment and compatible with multiple environments (Node, applet), complete graphics grammar theory, to meet your various visualization needs , professional mobile design guidelines to bring you the best mobile graphics experience. Best practices for moving side charts around design, performance and heterogeneous environments. Based on the...
    Downloads: 6 This Week
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  • 23
    Pejota

    Pejota

    The ERP and CRM, multi language, for freelancers

    PeJota is a Freelancer/solo entrepreneur‑focused ERP/CRM built on PHP/Laravel with FilamentPHP UI. It includes client/project/contracts/tasks/timesheets and invoice management in a lightweight monolithic app, ideal for multilingual SMB use.
    Downloads: 3 This Week
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  • 24
    Barcode

    Barcode

    Laravel Barcode Generator

    This is a barcode generation package inspired by https://github.com/tecnickcom/TCPDF. Actually, I use that package's underline classes for generating barcodes. This package is just a wrapper of that package and adds compatibility with Laravel 5.
    Downloads: 3 This Week
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  • 25
    AbstractAlgebra.jl

    AbstractAlgebra.jl

    Generic abstract algebra functionality in pure Julia

    AbstractAlgebra is a pure Julia package for computational abstract algebra. It grew out of the Nemo project and provides all of the abstract types and generic implementations that Nemo relies on. It was originally developed by William Hart, Tommy Hofmann, Fredrik Johansson and Claus Fieker with contributions from others. Current maintainers are Claus Fieker, Tommy Hofmann and Max Horn.
    Downloads: 4 This Week
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