Prototyping tools
Tools for interactive interface prototypes and product flows.
Excalidraw
Prototyping
Penpot
Prototyping
Open-pencil
Prototyping
Plasmic
Prototyping
Whitebophir
Prototyping
Openflowkit
Prototyping
Drafft-ink
Prototyping
Whiteboard
Prototyping
How to choose open-source Prototyping software
Start with the workflow you need to replace, then compare feature coverage, deployment documentation, project activity, data portability, and support. Repository popularity is useful context, but it should not outweigh fit or the project's maintenance history.
Capabilities and use cases
Across the reviewed tools, common documented capabilities include Collaborative whiteboard canvases from ideation to aligned workshop board, Real-time canvas collaboration, Collaborative design workflows, Collaborative implementation diagrams, Collaborative interface designs on a shared canvas, Design systems, Infinite canvas boards, Interactive prototyping. Verify the exact workflow on each profile before migrating production data.
Licensing considerations
Licenses represented in this category include AGPL-3.0, MIT, MPL-2.0. Check redistribution, modification, and hosted-service obligations against your intended use.
Self-hosting tradeoffs
8 of 8 reviewed tools are confirmed as self-hostable, and 3 document Docker support. Compare upgrade, backup, monitoring, and security work alongside hosting cost.