Plane Open Source Issue Tracker

Plane is an open-source project management tool that helps teams plan, track, and manage software development projects, designed as a free, self-hostable alternative to Linear, Jira, and Asana. Founded by Anmol Krishan and Vivek Rathi and launched in 2023, Plane is developed in Python (Django) and TypeScript (Next.js), with PostgreSQL as the database. The project has gained rapid adoption with over 25,000 stars on its repository. Key features: issue tracking with custom issue types, priorities (urgent, high, medium, low, none), and states (backlog, todo, in progress, done, canceled) with customizable state groups. Cycles (sprints) for time-boxed iteration planning with burndown charts, velocity tracking, and progress analytics. Modules for grouping related issues by feature, component, or milestone with custom start/end dates. Views: custom list, Kanban board, calendar, spreadsheet, and Gantt views, each with configurable properties, filters, and groupings. Rich text editor (Tiptap-based) with Markdown support, code blocks, images, tables, and mentions. Issue relationships: blocking, blocked by, duplicate, relates to, and parent/child issue hierarchies with sub-issues. Command palette (Cmd+K) for rapid navigation, issue creation, and actions. Notifications: email and in-app notifications for mentions, assignments, and updates. Labels with custom colors for categorization. Attachments: drag-and-drop file uploads with image preview. Import from popular issue trackers, CSV, and Excel. REST API and webhooks for integrations. Authentication: email/password, Google, GitHub, GitLab OAuth, and SAML SSO (enterprise). Multi-workspace support. Dark and light themes. Mobile-responsive web interface. Self-hosted via Docker Compose or Kubernetes. Cloud edition with managed hosting. Open source under Apache-2.0.