Design and diagrams

Miro alternatives

2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.

The full assessment →

The projects

lovasoa/whitebophir2,627AGPL-3.0Collaborative online whiteboard with drawing, shapes, and real-time collaboration.Open on GitHub spacedeck/spacedeck-open1,132AGPL-3.0Web-based real-time collaborative whiteboard supporting rich media and live collaboration.Open on GitHub

What you give up either way

Scale and global low-latency infrastructure for hundreds of thousands of concurrent users
250+ built-in third-party integrations and prebuilt templates
Enterprise-grade security, compliance and governance controls
AI workflows, agent orchestration, and bundled AI credits
Polish: mobile apps, device integrations, and long-tail feature set

An open-source project doing the core job proves a replacement is possible. It does not prove it matches Miro, and it does not prove anyone has run it for a month. How we decide.