Verdict: In the Plane vs Jira vs Linear comparison for 2026, Plane is the strongest open-source Jira alternative and our pick for most small and mid-sized teams. It covers the core of Jira (work items, sprints, roadmaps, triage) in a modern, Linear-style interface, can be self-hosted for free with unlimited users, and its cloud Free plan allows 12 users. Pick Jira only if you are deep in the Atlassian ecosystem, and Linear if you run a product engineering team that prizes speed over data owners...