Comparison

OpenProject.org vs Plane

OpenProject.org and Plane both land on Depends.

OpenProject.org

Depends

Confidence: Medium

Buy it if you want a full open-source PM suite and can self-host or administer it.

Depends

Confidence: Medium

Buy if you're an engineering-heavy or self-hosting team that wants an open-source Jira/Linear alternative.

OpenProject.org versus Plane
Compare	OpenProject.org	Plane
Verdict	Depends	Depends
Best for	Public institutions and enterprises needing on-prem	Engineering teams fleeing Jira costs
Who it's not for	Small teams wanting a simple to-do list . this is a heavy suite	Non-technical teams wanting polished zero-setup SaaS
Privacy	Transparent CVE disclosure with external audits, but a real history: SQL injection, XSS, data exposure, and a Docker default-secret RCE . patch promptly.^⁵	Multiple CVEs disclosed in 2025-2026, including authorization bypass and unauthenticated information disclosure; vendor maintains a trust center.
Support quality	Trustpilot 4/5 but tiny 11-review sample	No evidence in reviewed sources
Public sentiment	Reviews skew positive on Capterra and GetApp, but G2 sits near 3.8/5 and some users find it heavier than they need.^²	Genuine user feedback is scarce in reviewed sources . most search results matched the 2023 film 'Plane' . leaving only sparse positive G2 sentiment.
Biggest gotcha	Self-hosting means you own patching; known CVEs make lagging updates genuinely risky	Self-hosting means you own patching; six CVEs surfaced, several high severity