10 Best Open Source Project Management Software of 2026

Plane ranks first because it pairs a clean, keyboard-first tracker with a genuinely free self-hosted edition and the cheapest paid tier on this list. The Community Edition is licensed under AGPL-3.0 and covers work items with custom states, cycles and modules for timeboxed work, five layout views, project pages and an intake queue for incoming requests. Teams can install it with one Docker Compose command or run it on Kubernetes with Helm charts. If you would rather not run servers, Plane Cloud is free for up to 12 users, and Pro costs $6 per seat a month on annual billing, adding a workspace wiki, time tracking, dashboards, initiatives and teamspaces. Business at $13 adds project templates, recurring work items and email intake. The limits are in governance: SAML, OIDC and LDAP sign-in, audit trails and approval gates belong to the paid Commercial Edition, so regulated teams should budget for it.

OpenProject is the most complete self-hosted option here for organizations that plan projects with dates, dependencies and budgets. The free Community edition has no minimum user count and includes work packages, Gantt charts with automatic and manual scheduling, agile boards, Scrum backlogs, a wiki, meetings, and time and cost tracking with budgets. Its documentation also covers portfolio management, project life cycle phases with phase gates, and file storage integrations with Nextcloud, OneDrive and SharePoint, which matter for public sector and European teams that keep files on their own infrastructure. Enterprise plans add support and Enterprise add-ons, but they start at 25 users, and Premium needs 100. The pricing page offered both EU and US currency views, yet it loaded in euros from our location, so we mark the USD price as pending. The trade-off is complexity: a small team that only needs a board will find OpenProject heavier than Plane or Kanboard.

Huly takes a different approach from the other tools here: it is an open source platform that combines a task tracker with chat, documents, a team planner and a virtual office with audio and video calls. For developer teams, the most useful piece is two-way synchronization with GitHub Issues and GitHub Projects, which lets Huly act as a front end for several repositories. Pricing is per workspace rather than per seat. The free Common plan allows unlimited users with 10GB of storage and 10GB of video and audio traffic, Rare costs $19.99 a month for 100GB of each, and Epic costs $99.99 for 1TB of storage. Huly says charges cover consumed cloud resources: storage, network and compute. The catch is breadth. Teams that only want a board will find more to set up than in Taiga or Kanboard, and AI features are still marked as to be determined on the pricing page.

Taiga is the easiest pick on this list for teams that run Scrum or Kanban and do not want to design workflows from scratch. Its Kanban board includes WIP limits, swimlanes for multiple workflows, epics, sub-tasks and an archive for user stories, and a project can switch between Scrum and Kanban. The software is open source, and the on-premise option suits teams that must keep all data on their own servers or want to customize the code. Taiga's cloud pricing is unusual: every plan, including the free one, allows an unlimited number of users, and paid tiers rise with projects and storage rather than seats. The free cloud plan is small, at 1 public and 1 private project and 10MB of storage. Taiga's prices appeared in euros from our location, so we list the USD price as pending. Teams that need Gantt charts, budgets or a wiki-heavy setup will find more in OpenProject or Redmine.

Odoo Project suits companies that sell time, because tasks connect directly to timesheets, sales orders and invoices. The app offers Kanban, Gantt and list views, task dependencies, subtasks, recurring tasks, milestones and templates, and it can generate project updates showing profitability, milestones and resources. Customers can be invited into a project with controls over what they view and edit. Odoo's pricing lets you run one app free forever with unlimited users, which makes Project alone a no-cost option, but adding Timesheets, Accounting or another app moves you to a paid Standard or Custom plan. Odoo's code is published on GitHub and the software can be downloaded for self-hosting, while the hosted version is Odoo Online. The pricing page loaded in euros from our location, so we mark the USD price as pending. Teams that only need a tracker will find Odoo broader than necessary.

Worklenz focuses on teams that deliver client projects and need to see time and money alongside tasks. The cloud Free plan covers up to 5 team members and 3 active projects with task lists, Kanban boards and templates. Pro, at $8 per active user a month billed monthly or $6 billed annually, removes those caps and adds time tracking, timesheets, project and time reports, workload views and custom fields. Business at $12 adds a client portal, project finance, full Gantt and schedule editing and unlimited guests. Billing counts only active users, so deactivated members do not add cost. For teams avoiding SaaS altogether, the Community edition runs on your own infrastructure with unlimited users, core task management and source code access. The trade-off is that the free self-hosted edition is the core product, while advanced reporting, SSO and backup tools sit in paid self-hosted editions that require a sales conversation.

Leantime stands apart because it is designed for people who do not think of themselves as project managers, with explicit support for ADHD, dyslexia and autism. Its My Work dashboard pulls tasks from every project into one view, and time blocking, notes and whiteboards help individuals plan the day. Tasks link to goals and milestones, which helps small teams keep strategy and execution together. The hosted Leantime Pro plan is a single tier with all features, 500 AI credits a month and a 14-day trial, at $10 per user billed monthly or $8 billed annually. There is no free hosted tier: Leantime says it dropped it in favor of the open source Community Edition, which is AGPLv3, self-hosted and community supported, with advanced features available as plugins. Teams that need deep agile reporting or Gantt-driven scheduling will find more in OpenProject, but for people-first planning Leantime is a strong option.

Redmine is the long-standing free option for teams that want full control and do not mind running a Ruby on Rails application. It is released under the GNU General Public License v2 with no paid edition, so the only costs are hosting and admin time. The feature list covers what most technical teams need: multiple projects with role-based access, configurable issue tracking with custom fields, Gantt charts and calendars, per-project wikis and forums, time tracking, and integration with Subversion, Git, Mercurial, Bazaar and CVS. Issues can be created by email and users can sign in through several LDAP directories. Plugins and themes extend it further. The project is still maintained, with versions 6.0.12, 6.1.6 and 7.0.3 released on November 1, 2026. The drawbacks are support and polish: help comes from volunteers in forums and chat, and the default interface takes more training than Plane or Taiga.

Vikunja is the lightest self-hosted option here and the easiest to adopt for a person or small team moving off a SaaS to-do app. It is licensed under AGPLv3 and is free to self-host with Docker or native binaries. Projects can be viewed as a list, Kanban board, Gantt chart or table, and it supports reminders, repeating tasks, labels, saved filters and CalDAV, so tasks can sync to calendar apps. Built-in importers bring over tasks from Todoist, Trello and Microsoft To-Do. Vikunja Cloud is a paid managed service made and hosted in the EU, with Personal, Family and Organization plans and a 14-day trial; prices appeared in euros from our location, so the USD price is pending. The Organization plan adds unlimited teams, 50GB storage and a GDPR data processing agreement. Vikunja is a task manager first, so teams that need budgets, roles per project or reporting should look at OpenProject or Redmine.

Kanboard is the simplest tool on this list and that is the point: its site says the number of features is voluntarily limited and the interface avoids anything fancy. What you get is a Kanban board with drag-and-drop tasks, columns you can add or rename at any time, WIP limits that highlight a column when it is over capacity, swimlanes, subtasks with time or complexity estimates, attachments and Markdown descriptions. Automatic actions can change assignees, colors or categories when events happen, and a small query language filters the board. It supports LDAP or Active Directory and OAuth2 providers including Google, GitHub and GitLab, and the documentation covers Docker, SQLite, MySQL and PostgreSQL installs. Kanboard is released under the MIT License and there is no paid tier or hosted plan. It ranks last because it lacks Gantt charts, docs and reporting depth, but for a small team that wants a board on its own server it costs nothing.