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OpenProject

OpenProject is an open-source, web-based designed to support classic, agile, and hybrid methodologies for organizing tasks, timelines, and team collaboration. Founded in 2012 by OpenProject in , , it is led by CEO and founder Niels Lindenthal and has grown into a community-driven with over 20 million downloads, 270 contributors, and more than 99,300 commits to its codebase as of November 2025. The software's core functionality revolves around work packages, which serve as flexible units for tasks, bugs, or features, allowing users to assign responsibilities, track due dates, and monitor change history while configuring custom workflows. Key features include Gantt charts for scheduling and dependency visualization, agile boards supporting and processes, and a team planner for workload management. It also facilitates time and cost reporting, document management, and integrated forums for discussions, making it suitable for both small teams and large organizations. OpenProject is licensed under the GNU General Public License version 3 (GPLv3), enabling free use, modification, and distribution for the community edition, which requires self-hosting on or environments. For users seeking enhanced capabilities, editions offer on-premises or cloud-hosted options with professional support, advanced security modules, and add-ons like multi-project dashboards, starting at subscription fees from $7.25 per user per month. This dual-model approach has positioned OpenProject as a leading alternative to proprietary tools, emphasizing data and for organizations handling sensitive information.

Overview

Description and purpose

OpenProject is a free and open-source, web-based project management software released under the GNU General Public License version 3 (GPLv3). It focuses on promoting transparency, data sovereignty, and collaborative workflows, supporting deployment options in the cloud or on-premises environments. This design allows users to maintain control over their data while facilitating seamless team interactions across distributed settings. The software's primary purposes include enabling effective project planning, tracking, and execution for teams in diverse industries, with an emphasis on customizable workflows that boost productivity and adaptability. OpenProject targets companies and organizations looking for versatile tools that avoid , serving everyone from small teams to large enterprises seeking scalable solutions without restrictive licensing. For instance, it supports core functionalities like work packages for and timelines for scheduling, aiding overall project oversight. OpenProject's initial release, version 1.0.0, took place in October 2012 as a fork of ChiliProject, which itself derived from . As of November 2025, the latest stable release is version 16.6.1, issued on November 13, 2025. It offers cross-platform compatibility, particularly for on-premises installations on supported distributions. The official website is www.openproject.org.[](https://www.openproject.org/)

Available editions

OpenProject provides three primary editions tailored to different user needs: the free edition for self-hosted deployments, and the paid editions available in both on-premises and cloud-hosted formats. These editions build upon the core open-source foundation, with the Enterprise variants offering additional capabilities and services to support larger organizations or those requiring professional assistance. The edition is a free, open-source version of OpenProject designed for users seeking basic functionality without ongoing costs. It supports unlimited users and projects, including essential tools such as , Gantt charts, and access for integrations, all under the GNU General Public License Version 3. Deployment is limited to self-hosted on-premises installations on servers via DEB/RPM packages, containers, or , requiring users to handle their own server administration and maintenance. While it receives regular updates from the core development team and community contributors, it lacks premium support, advanced security features, and certain enterprise add-ons, making it suitable for smaller teams or those prioritizing and cost savings. In contrast, the Enterprise edition serves as a commercial extension of the edition, available through subscription-based plans that unlock enhanced features, professional , and optional hosting. It includes all Community functionalities plus add-ons such as improved security measures (e.g., encrypted backups and regular privacy assessments), integrations (e.g., LDAP/AD, OpenID Connect), and advanced tools like custom reporting and (BIM) integration for IFC model uploads. starts at €7.25 per user per month for the plan (minimum 25 users for on-premises or ), scaling to higher tiers like (€19.50/user/month, minimum 100 users) and Corporate (custom ), with BIM as an additional €1.25/user add-on. varies by plan, from email assistance in Basic to dedicated engineers in Corporate, and a 14-day free trial is offered. Enterprise deployments differ significantly by hosting model: the on-premises option allows full control over and on the user's servers, ideal for compliance-heavy environments, while the edition—hosted in centers by OpenProject—eliminates maintenance burdens with automatic updates, scalable storage, and easier setup, starting from a minimum of 25 users at the same base . Both Enterprise formats emphasize reduced administrative overhead compared to the edition, with providing further convenience for teams without dedicated IT resources.
EditionDeploymentKey FeaturesPricingSupport
CommunityOn-premises (self-hosted)Basic , API, unlimited users/projectsFreeCommunity forums, user guides
Enterprise BasicOn-premises or Community features + security, SSO, custom reporting€7.25/user/month (min. 25 on-prem/cloud)Email support
Enterprise PremiumOn-premises or Basic + advanced s (e.g., ), BIM add-on€19.50/user/month (min. 100 users)Remote assistance, training
Enterprise CorporateOn-premises or Premium + openDesk , dedicated features (min. 1000 users)Dedicated engineer, SLAs

Features and capabilities

Core functionalities

OpenProject's core functionalities revolve around flexible tools for managing elements, enabling teams to track progress, allocate resources, and collaborate effectively. Central to this is the work package, which serves as a customizable unit representing tasks, bugs, features, risks, user stories, or change requests within a . Each work package includes key attributes such as type, unique ID, subject, status, assignee, priority, and estimated time or due date, allowing users to define and update these details to reflect real-time needs. These attributes support hierarchical structures, relations between packages (e.g., parent-child or blocking dependencies), and comparisons for tracking changes over time. Visual planning is facilitated through timelines and Gantt charts, which provide an interactive representation of work packages over time to manage dependencies, milestones, and . In Gantt charts, work packages appear as bars spanning start and finish dates, with drag-and-drop functionality to adjust schedules; dependencies are visualized as connecting lines, ensuring that successor tasks cannot begin before predecessors are completed. As of OpenProject 15.4 (March 2025), an automatic scheduling mode allows work packages to be scheduled to start as soon as possible based on predecessor and child relations, with options for single-date mode defaulting to finish dates only. Milestones are denoted by icons and can be aggregated across multiple projects, while views can be configured to include labels for dates, assignees, or priorities, supporting multi-project overviews for broader planning. Scheduling and are enhanced by integrated and modules, which allow for the creation and visualization of events tied to project timelines. The displays work packages as color-coded strips based on type, with month or week views, filters (e.g., by author or ), and drag-and-drop editing to create or reschedule items directly. Meetings support both one-time and recurring events, where users can define agendas, invite participants, , and generate minutes to document outcomes, decisions, and assigned actions, all linked to relevant work packages for seamless follow-up. As of OpenProject 15.4 (March 2025), meeting outcomes can be set for agenda items, automatically updating linked work packages' status; recurring meetings support moving items to the next instance. Additionally, since OpenProject 16.0 (May 2025), meeting backlogs enable flexible agenda topic management. Project tracking encompasses modules for roadmaps, budgets, and time logging, complemented by customizable fields and workflows to adapt the system to specific needs. Roadmaps provide an alphabetical overview of project versions with assigned work packages, enabling progress visualization through charts that compare open versus closed items and filter by attributes like status or . Budgets allow users to set planned costs (including unit and labor rates) and monitor spent amounts against work packages, offering a project-specific view of financial progress. Time logging enables detailed recording of hours spent on work packages, aggregated for reporting on labor resources. Since OpenProject 16.0 (May 2025), a dedicated time tracking module includes a view with daily, weekly, monthly, and work week options for logging and reviewing time entries. Customizable fields extend core attributes with user-defined options, such as text, date, list, or user formats, which can be activated per work package type and project for tailored data capture. Reporting tools deliver actionable insights through customizable dashboards and queries, focusing on progress overviews without delving into methodology-specific adaptations. The project overview page acts as a central , configurable with widgets for summaries, member lists, and work package tables filtered by criteria like or assignee. Burndown-style charts, available via work package widgets, visualize metrics such as percentage complete over time using line, bar, or pie formats, while custom queries support sorting, grouping, and exporting up to 100 items for detailed analysis. Configurability ensures adaptability across projects via role-based permissions, custom fields, and automation rules. Roles—such as project-specific ones like "Manager" or global ones like "Viewer"—bundle permissions (e.g., edit work packages or view reports), assignable to users or groups at the project level, with administrators able to customize these via the administration interface. rules define permitted status transitions (e.g., from "New" to "In Progress") based on role and work package type, allowing bidirectional changes and the copying of existing setups for efficiency; these can be further automated with actions that update multiple attributes in bulk. Such features support hybrid methodologies by enabling universal tools to flex across traditional and agile approaches.

Supported methodologies

OpenProject provides flexible support for multiple project management methodologies, enabling teams to adapt the software to their specific workflows through configurable modules and views. This versatility allows users to implement classic, agile, or hybrid approaches within the same platform, leveraging core elements like work packages to represent tasks across different structures. For classic or waterfall methodologies, OpenProject facilitates linear project planning with Gantt charts that visualize timelines, dependencies, and phases in a hierarchical structure. Users can define sequential stages, assign durations to tasks, and track progress against baselines, making it suitable for traditional projects requiring upfront planning and documentation. This approach is particularly effective for industries like construction, where detailed scheduling of building phases ensures compliance and resource allocation. In agile and Scrum environments, OpenProject supports iterative development through backlog management, where user stories and tasks are prioritized in product or sprint backlogs. Sprint planning is enabled via version-based boards, allowing teams to assign story points and monitor progress with automated burndown charts that display remaining effort over time. These features promote collaborative refinement and adaptation, commonly used in projects to handle evolving requirements. For methodologies, OpenProject offers visual boards that map workflows into columns representing stages such as "To Do," "In Progress," and "Done," with drag-and-drop functionality to update task statuses. Work-in-progress (WIP) limits can be applied to columns to enforce continuous flow and prevent bottlenecks, supporting principles for ongoing without fixed iterations. Hybrid methodologies are accommodated by combining waterfall and agile elements, such as using Gantt charts for high-level timelines alongside agile boards for daily execution within phases. This mixed approach allows projects to maintain structured overviews while incorporating iterative flexibility, ideal for complex endeavors blending predictive and adaptive practices. Customization enhances adaptability across methodologies via modules for time and cost tracking, which log labor hours and budgets against work packages regardless of the approach. For instance, in , time tracking integrates with for effort estimation, while in , cost reports align with phase-based budgeting to monitor expenditures. These tools ensure methodological neutrality, permitting tailored workflows without altering core project structures.

Development and technology

Technical stack

OpenProject employs the framework as its backend, utilizing the Model-View-Controller (MVC) pattern to manage server-side logic, database interactions, and HTTP request handling through the application server. The frontend is developed with , which replaced the earlier in 2018, enabling a modern, responsive with UI-Router for ; certain pages incorporate Rails views enhanced by and ViewComponents for dynamic elements. For data persistence, OpenProject requires PostgreSQL version 13.0 or higher, with version 16.0 mandated starting from release 16.0; it is the sole supported database for production use, emphasizing encrypted TCP connections and performant storage like SSDs for optimal scaling. Key components include a RESTful API (version 3) that supports HATEOAS principles for frontend interactions and external integrations, alongside built-in support for two-factor authentication (2FA) via time-based one-time passwords and LDAP authentication for enterprise identity management and group synchronization. The architecture adopts a modular hybrid monolith design, facilitating extensions through plugins that integrate seamlessly with the core codebase; background workers handle asynchronous tasks, while security is reinforced by guidelines for , input validation, and session management, with TLS termination typically managed by a load balancer or . Performance optimizations include application-level caching with , , or file-based systems, and Puma's multi-process, multi-threaded configuration to support workloads scaling to thousands of users. Deployment is cross-platform, running on (via DEB/RPM packages on supported distributions), Windows, and macOS, with containers recommended for simplified installation, orchestration via docker-compose, and compatibility including architectures like Apple M1.

Community involvement

OpenProject maintains its primary source code repository on GitHub at github.com/opf/openproject, where the project employs active issue tracking for bug reports and feature requests, alongside pull requests for code submissions. This repository hosts over 269 contributors who have participated in development efforts. The project's contribution guidelines emphasize a structured approach to involvement, including adherence to a code of conduct adapted from the Contributor Covenant, which promotes respectful collaboration and prohibits harassment or unprofessional behavior. Contributors are encouraged to improve documentation by fixing errors or adding content, participate in translation efforts via the Crowdin platform to support localization in multiple languages, and follow community standards outlined in the project's development documentation. Development follows a git-based primarily led by the OpenProject team, yet remains open to external contributions such as fixes submitted against release branches, new features targeting the development branch, and localization updates. All submissions require a to ensure compatibility with the project's open-source licensing. As of 2025, OpenProject sustains an active comprising hundreds of contributors and thousands of users, evidenced by extensive interactions including over 5,800 posts in the category alone. Support channels include dedicated on community.openproject.org for discussions on , plugins, and topics, enabling user and . While formal mailing lists and IRC channels are not prominently featured, the facilitates through these and occasional project-related events.

Organization and governance

OpenProject Foundation

The OpenProject Foundation e.V. was established in October 2012 by the project's developers and users to govern participation and ensure the long-term sustainability of the open-source software. It was officially registered in June 2013 as a non-profit organization in Berlin at the Amtsgericht Charlottenburg (local court), under register number VR 32487 B. This registration solidified its status as an eingetragener Verein (registered association), a legal form in Germany typically used for non-profit entities focused on communal goals. The foundation's primary objectives center on fostering an active open-source community without economic motives, emphasizing independence and ethical standards. It promotes the growth of developers, users, and companies contributing to OpenProject's continuous development, while defining the project's overarching vision and to guide collaborative efforts. Additionally, it establishes development policies to maintain consistency and provides to the source code and platform, ensuring transparency and inclusivity for all participants. In its role, the OpenProject Foundation oversees adherence to licensing requirements and manages community resources, operating distinctly from any commercial operations to preserve the project's non-profit ethos. This separation allows it to prioritize sustainability and ethical guidelines, safeguarding the initiative's integrity as it supports global collaboration on the software.

OpenProject GmbH

OpenProject GmbH was established in 2012 in , , serving as the primary developer behind the OpenProject . The company leads the core development of OpenProject, while also offering enterprise support, cloud hosting services, and commercial editions tailored for professional use. Its operations are centered in , with a global remote-first spanning multiple countries, where a team of over 50 members focuses on , programs, and custom integrations to enhance user adoption and functionality. This structure supports a remote-first spanning multiple countries, enabling efficient on software improvements. OpenProject maintains a balanced relationship with the open-source community by contributing to the project's while ongoing through subscription-based offerings. The company collaborates with the OpenProject Foundation and open-source community by contributing to the project's while through offerings. Key activities include managing regular software releases and providing timely security updates, with multiple versions issued in 2025 to address features, bug fixes, and vulnerabilities.

History

Founding and early development

OpenProject's development began in 2011, initiated by a group of contributors who were seeking improvements in performance and security for open-source tools derived from . These early efforts were closely tied to the parallel development of ChiliProject, a of aimed at enhancing usability and community features, but contributors identified ongoing limitations in extensibility and maintenance that hindered adoption. In 2012, OpenProject emerged as a deliberate from ChiliProject, driven by the need for a more modular and secure alternative suitable for environments while preserving open-source principles. The fork addressed specific shortcomings, such as inadequate support for advanced accessibility, robust security protocols, and performant plugin integration in the existing Redmine/ChiliProject ecosystem, which could not meet the demands of professional users without compromising core values. This decision was motivated by a desire to create a reliable, community-governed tool that rivaled proprietary solutions like or , offering and flexibility for data-conscious organizations. The initial development was led by Berlin-based developers, who coordinated remotely to build a for scalable . The project's first release, version 1.0.0, occurred in October 2012, marking the official launch of OpenProject as an independent platform. Concurrently, the OpenProject Foundation (OPF) was established in October 2012 by the core developers and early users to provide neutral governance, ensure sustained development, and foster community participation, inspired by models like the and Foundations. This parallel formation underscored the commitment to open governance from the outset, with the association formally founded in April 2013 and registered as a non-profit in Berlin-Charlottenburg in June 2013.

Key milestones and releases

OpenProject began its release cycle with early versions focused on essential features, evolving rapidly in its first years. By 2015, it had reached 4.0.4, demonstrating active development and improvements in areas like integration. OpenProject launched its enterprise edition, providing hosted options with enhanced and for commercial users alongside the . The transition to a modern frontend framework took place in early 2018, when the application migrated from to , enabling better performance and maintainability over several releases. OpenProject supports hybrid project management methodologies, allowing users to combine classic elements with agile practices like and within the same platform. In 2020, OpenProject introduced its BIM module, extending the software for construction and projects with features like IFC model viewing and BCF issue management, initially available on-premises. The project maintained a steady release cadence, with 28 versions issued in 2024 alone, comprising 2 major releases, 10 minor updates, and 16 patches, reflecting ongoing improvements in and stability. In early 2025, version 16.0.0 was released on May 21, introducing significant features such as meeting backlogs for better agenda management and internal comments to streamline team communication, marking a major advancement in collaboration tools. Development continued with further releases through November 2025, including version 16.6.1 on November 13, enhancing and stability. By 2025, OpenProject had grown substantially, powering numerous projects across various scales.

Recognition

Awards and accolades

OpenProject has garnered recognition for its innovative approach to open-source , particularly in and innovation. In 2017, OpenProject received the Great User Experience Award from FinancesOnline, which evaluates software based on ease of , intuitive interfaces, and overall user satisfaction, underscoring its strengths in delivering accessible tools for collaborative workflows. In April 2018, it won the INNOVATIONSPREIS-IT 2018 in the category, awarded by the Initiative to honor outstanding IT solutions that promote efficiency and innovation for small and medium-sized enterprises. In 2018, OpenProject earned the Silver Open Source Business Award (OSBAR), often called the "OpenSource-Oscar," from the Open Source Business Alliance, presented in February 2019, specifically for its pioneering that balances open-source principles with sustainable enterprise support. In 2024 and 2025, OpenProject received further accolades from Digital Markets, including Category Leader status on GetApp in 2025, Front Runner designation on Software Advice in 2025, and Best Customer Support from Software Advice in 2024, highlighting its ongoing excellence in . These accolades, driven by efforts from , highlight the software's excellence in open-source development, superior , and practical applicability in enterprise environments.

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    Feb 27, 2019 · One of the best open source projects in 2018. Every year, the price honors outstanding and innovative open source ideas and projects. The Jury ...