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

  • Our Free Plans just got better! | Auth0 Icon
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  • Automate contact and company data extraction Icon
    Automate contact and company data extraction

    Build lead generation pipelines that pull emails, phone numbers, and company details from directories, maps, social platforms. Full API access.

    Generate leads at scale without building or maintaining scrapers. Use 10,000+ ready-made tools that handle authentication, pagination, and anti-bot protection. Pull data from business directories, social profiles, and public sources, then export to your CRM or database via API. Schedule recurring extractions, enrich existing datasets, and integrate with your workflows.
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  • 1
    Vtiger CRM

    Vtiger CRM

    An enterprise-class CRM and more!

    Vtiger CRM enables sales, support, and marketing teams to organize and collaborate to measurably improve customer experiences and business outcomes. Vtiger CRM also includes email, inventory, project management, and other tools, providing a complete the business management suite. Download Vtiger CRM here or sign up for a free 15-day free trial of the cloud-based application with free updates and support at https://www.vtiger.com/
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    Downloads: 709 This Week
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  • 2
    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.
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    Downloads: 432 This Week
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  • 3
    GanttProject

    GanttProject

    Free project scheduling and management tool

    GanttProject is a project scheduling application written in Java and featuring Gantt chart, resource management, calendaring, import/export (MS Project, HTML, PDF, spreadsheets). Learn more on http://ganttproject.biz
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    Downloads: 378 This Week
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  • 4
    MRBS is a system for multi-site booking of meeting rooms. Rooms are grouped by building/area and shown in a side-by-side view. Although the goal was initially to book rooms, MRBS can also be used to book any resource; computers, planes, whatever you want
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    Downloads: 200 This Week
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  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
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  • 5
    OpenProj - Project Management

    OpenProj - Project Management

    Open Source desktop project management

    OpenProj is an open-source desktop project management application similar to Microsoft Project. OpenProj has a familiar user interface and even opens existing MS Project files. OpenProj is interoperable with Project, Gantt Charts and PERT charts.
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    Downloads: 298 This Week
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  • 6
    FET- Free timetabling software
    FET is free timetabling software for schools, high-schools and universities. Scheduling is done automatically. Please visit the project web site https://lalescu.ro/liviu/fet/ to be sure you always have the latest version
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    Downloads: 259 This Week
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  • 7
    Group Office groupware and CRM

    Group Office groupware and CRM

    Take your office and CRM into the cloud!

    Installation instructions can be found here: https://groupoffice.readthedocs.io/en/latest/install/install.html Group Office is an open source groupware application. It makes your daily office tasks easier. Share projects, calendars, files and e-mail online. It is a complete solution for all your online office needs. From a customer phone call to a project and finally an invoice. The support system helps to keep your customers happy. Group Office is fast, secure and has privacy by design. You can stay in full control of your data by self hosting your cloud and e-mail. Our document editing solution keeps all data on the secured server instead of synchronising it to all user devices. GroupOffice is open source and modular. Which means it’s easy to customise and extend. You can turn off and on features and it enables any developer to create new modules for the platform.
    Downloads: 86 This Week
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  • 8

    SO Planning

    Simple Online Planning

    SO Planning is a Simple Online Planning tool. Allows you to plan working periods for each person of your team, in a visual / printable result. Shows a line by person and the corresponding working days. Who does what, when and on what project? SOPlanning is an online planning tool, designed to efficiently organize projects and tasks. Assign work for each member of your teams, regardless of your field of activity. The keys to the tool: a list of projects, a list of users, and tasks assigned to the various projects, all online on the web and in complete security. SO Planning allows you to have real staff management on the internet via your computer or your phone. You can work by department, and organize your project very simply. The management of schedules within several teams is thus facilitated, a global dashboard helps you to visualize the complete schedule of your project. More details on our website : https://www.soplanning.org
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    Downloads: 59 This Week
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  • 9
    EspoCRM - Open Source CRM

    EspoCRM - Open Source CRM

    Moving in the right direction together!

    EspoCRM software is that it’s fully customizable. We strive to create a solution that fits different business and industry needs, without having to rely on a “one size fits all” approach or make you spend a fortune on customization. Demo: https://www.espocrm.com/demo/ Installation: https://docs.espocrm.com/administration/installation/ Customer relationship management (CRM) software is developing every day due to ever-changing global business environment and rapid advances in digitalization of the whole sales process. Being only a basic customer information database in the very beginning of its existence, CRM systems have evolved into something more than just sales software. Today, CRM is considered to be the entire approach to managing interaction with current and potential clients. The system fosters customer loyalty, automates the sales pipelines, streamlines business processes and provides powerful insights into sales performance. Apache / PHP / MySQL
    Downloads: 20 This Week
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  • Nonprofit Budgeting Software Icon
    Nonprofit Budgeting Software

    Martus Solutions provides seamless budgeting, reporting, and forecasting tools that integrate with accounting systems for real-time financial insights

    Martus' collaborative and easy-to-use budgeting and reporting platform will save you hundreds of hours each year. It's designed to make the entire budgeting process easier and create unlimited financial transparency.
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  • 10
    Zentyal, Linux Small Business Server

    Zentyal, Linux Small Business Server

    Zentyal is a Linux Small Business Server

    Zentyal Server is an easy to use and affordable Linux server, specially designed to meet the needs of small and medium businesses Thanks to Zentyal's Samba integration, Zentyal provides native compatibility with Microsoft Active Directory, allowing you to join Microsoft clients to a domain and manage them easily. Zentyal Server incorporates all the network services required in a small and medium business environment: * Directory & Domain Server with native compatibility with Microsoft Active Directory * Mail Server with ActiveSync and webmail * Gateway with firewall and proxy * Infrastructure Server with DNS/DHCP server, Certification Authority and Virtual Private Networks For more information and download, please access the project's home page.
    Downloads: 20 This Week
    Last Update:
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  • 11
    TimeTrex Time and Attendance

    TimeTrex Time and Attendance

    TimeTrex is a complete web-based payroll and time management suite.

    TimeTrex is a complete web-based payroll and time management suite which offers employee scheduling, time & attendance (timeclock, timesheet), job costing, human resource management (HRM), invoicing and payroll all in tightly integrated package. [Timesheet,payroll,timeclock,payroll,timesheet,hrm,human resource management, workforce management]
    Downloads: 14 This Week
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  • 12
    qOrganizer is a general organizer that includes a calendar with schedule,reminders,journal/notes for every day, to-do list.But provides features useful for students such as:timetable and a booklet for marks and absences.It's designed to be easy to use.
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    Downloads: 12 This Week
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  • 13
    WebCalendar
    Project has moved to github: https://github.com/craigk5n/webcalendar WebCalendar is a PHP application used to maintain a calendar for a single user or an intranet group of users. It can also be configured as an event calendar.
    Downloads: 13 This Week
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  • 14
    EventGhost
    EventGhost is an automation tool for MS Windows, that can be extended through plug-ins. Please visit http://www.eventghost.net/ to find more info and the latest release.
    Downloads: 63 This Week
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  • 15
    PHP web-based project management framework that includes modules for companies, projects, tasks (with Gantt charts), forums, files, calendar, contacts, tickets/helpdesk, multi-language support, user/module permissions and themes
    Downloads: 7 This Week
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  • 16
    BORG is a calendar and task tracking system written in Java. The calendar provides a nice month view, month-print, email reminders, popup reminders and to do list. The task tracker tracks issues through various states.
    Downloads: 43 This Week
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  • 17
    Kimai - Time Tracking Software

    Kimai - Time Tracking Software

    Time-Tracking for companies and teams with up to 250+ users

    Kimai is web based software that tracks work time, and classifies it. It tracks time and prints out a summary of your activities on demand. Yearly, monthly, daily, by customer, by project, by action. FETCH THE LATEST DOWNLOAD FROM GITHUB: https://github.com/kimai/kimai/releases Record expenses and print customizable invoices in different formats. For further information visit: - https://www.kimai.org - https://www.kimai.cloud - https://github.com/kimai/kimai
    Downloads: 7 This Week
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  • 18
    Sinal Musical 3.1

    Sinal Musical 3.1

    Programa para tocar sinal musical no intervalo de aulas

    Para testes de 30 dias. (Português, Inglês e Espanhol) Atualizado 14.01.2026 https://www.instagram.com/sinalescolarmusical/ Contato: programa.sinal.escolar.musical@gmail.com Agora com botão comprar para facilitar. Pagamento com Mercado Pago: Pix, Boleto e Cartão. https://sinalescolarmusical.netlify.app/ Novidades: - Ajuste o volume da música e corta o MP3 automaticamente - Playlist para horário do recreio, você adiciona várias playlists e o programa sorteia a playlist e as músicas -Anuncie o horário! Antes de cada toque, o programa pode informar a hora falada. -Dias programáveis: Escolha quais dias da semana um toque específico será reproduzido. -Controle manual: Toque qualquer som a qualquer momento com apenas um clique. -Toques personalizados: Crie alertas especiais para eventos e momentos únicos. Desde 2017, transformando a rotina com música.
    Downloads: 18 This Week
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  • 19
    Lifeograph

    Lifeograph

    Advanced personal note taking application

    Lifeograph is a diary program to take personal notes on life. It has all essential functionality expected in a diary program and strives to have a clean and streamlined user interface.
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    Downloads: 24 This Week
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  • 20
    LibrePlan

    LibrePlan

    Open Web Planning

    LibrePlan is a collaborative tool to plan, monitor and control projects and has a rich web interface which provides a desktop alike user experience. All the team members can take part in the planning and this makes possible to have a real-time planning. LibrePlan is open source and you can download, install and customize it for free. Highlights: * Open source solution * Collaborative & web based software * Multiproject focus * Real time planning * Collaborate with other companies * A comprehensive set of features Useful links: * Homepage: http://www.libreplan.com/ * On-line demo: http://demo.libreplan.org/ * Ask a question: http://ask.libreplan.org/ * Bugtracker: http://bugs.libreplan.org/ * IRC channel: http://webchat.freenode.net/?channels=#libreplan * Development wiki: http://wiki.libreplan.org/ * Mailing lists: http://sourceforge.net/p/libreplan/mailman/ * Source code: http://github.com/Igalia/libreplan
    Downloads: 21 This Week
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  • 21
    IGSuite - Integrated Groupware Suite

    IGSuite - Integrated Groupware Suite

    IGSuite is a web-ajax-based Integrated Groupware Suite

    IGSuite is a web-based Integrated Groupware Suite oriented to be a CRM solution. In the Suite you can find: IGWebMail, IGCalendar, IGContacts, IGArchive, IGWiki, IGTodo, IGChat, Projects, IGFax an HylaFax client, IGFileManager, IGMsg and many other.
    Downloads: 4 This Week
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  • 22
    RemoteCalendars is a COM-.NET Add-in for Outlook 2003/2007, written in C#. After installing this plugin, every Outlook user should be able to subscribe, reload and delete a generic remote iCalendar (RFC 2445) from Outlook 2003/2007.
    Downloads: 2 This Week
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  • 23
    Rapla, resource scheduling
    Rapla is a flexible multi-user resource and event planing system. It features multiple calendars views, conflict-management, fully configurable resource and event types and many import/export functions.
    Downloads: 2 This Week
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  • 24
    A tool to support individuals and teams using high-maturity, metrics-intensive project management methodologies [such as PSP(SM) and TSP(SM)]. Supports personal and team earned value tracking and forecasting; simplifies metrics collection and analysis.
    Downloads: 2 This Week
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  • 25
    Bugzilla spanish localization
    Downloads: 3 This Week
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