Open-source alternatives to Miro

Excalidraw is an MIT collaborative whiteboard with an infinite canvas, diagrams, flowcharts, wireframes, workshops, encrypted collaboration, shape libraries, embeds, PNG/SVG export, and .excalidraw files.

Pricing: Free and open source under MIT; hosted and self-hosted deployments are available.

• Infinite canvas and multiplayer editing
• No account required for basic use
• Hand-drawn diagrams, libraries, and exports
• Less structured than Miro
• Limited project-management features
• Hand-drawn style is not ideal for every use case

AFFiNE Community Edition is an MIT local-first workspace combining documents, whiteboards, databases, Kanban boards, AI, and real-time collaboration. Its Edgeless mode provides an infinite canvas.

Pricing: Community Edition is open source and self-hostable; cloud and enterprise features may be separate.

• Infinite Edgeless canvas
• Documents, databases, and whiteboards together
• Local-first, AI, and self-hosting
• Broader than a dedicated whiteboard
• Smaller template ecosystem
• Some cloud and enterprise features are separate

Penpot is an MPL-2.0 collaborative design platform for UI/UX, wireframes, prototypes, components, design systems, tokens, developer handoff, plugins, and self-hosting.

Pricing: Open source and self-hostable under MPL-2.0; hosted plans may be available.

• Collaborative design and prototypes
• Components, tokens, and developer handoff
• Self-hosting and open web standards
• Not a general-purpose workshop whiteboard
• Less suited to free-form brainstorming
• Smaller template ecosystem than Miro

tldraw is a polished infinite-canvas editor and SDK with shapes, arrows, sticky notes, embeds, snapping, multiplayer capabilities, and extensive customization. The current SDK is source available rather than open source.

Pricing: Source available; production use requires an appropriate tldraw license.

• Excellent canvas experience
• Real-time collaboration and embeds
• Strong developer SDK
• Not currently open source
• Production licensing required
• More SDK-focused than workspace-focused

draw.io/diagrams.net is an Apache-2.0-published diagramming application for flowcharts, architecture, networks, UML, organization charts, technical documentation, desktop use, and offline editing.

Pricing: Published application source is Apache-2.0; bundled assets and hosted-service licensing have additional nuances.

• Mature technical diagrams
• Large shape library
• Desktop, offline, storage integrations, and self-hosting
• Less fluid for informal workshops
• Open-source build has licensing nuances
• Real-time collaboration is not central to the standalone version

LearnHouse is an AGPL-3.0-core learning management system with block-based content, communities, assignments, analytics, AI, and collaborative learning spaces. It is adjacent to Miro rather than a direct whiteboard replacement.

Pricing: Open-source core is self-hostable; enterprise functionality may be separately licensed.

• Self-hosted learning spaces
• Block editor, communities, assignments, and analytics
• AI and white-labeling
• Not a direct Miro replacement
• Primarily an LMS
• No comparable general-purpose infinite canvas

Quant-UX is a GPL-3.0 prototyping and research platform for interactive wireframes, usability testing, behavioral analytics, heatmaps, and self-hosted UX validation.

Pricing: Free and self-hostable under GPL-3.0.

• Interactive prototypes and wireframes
• User testing and behavioral analytics
• Self-hosting and Docker
• Not a general-purpose whiteboard
• Less useful for brainstorming
• More specialized than Miro