makeplane
🔥🔥🔥 Open-source Jira, Linear, Monday, and ClickUp alternative. Plane is a modern project management platform to manage tasks, sprints, docs, and triage.
hcengineering
Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)
opf
OpenProject is the leading open source project management software.