Best Open Source Miro Alternatives for Self-Hosted Teams

Self-hosting a whiteboard tool is a fundamentally different decision from self-hosting a task manager or wiki. Whiteboards generate large collaborative sessions, depend on real-time synchronization between participants, and are often the first tool people expect to “just work” in a meeting. The operational requirements are higher than they appear.

This guide covers the open-source Miro alternatives that can genuinely be self-hosted, what that deployment requires, and who should actually consider this path in 2026.

Why self-host in the first place?

The reasons to self-host a whiteboard tool are narrower than for other software categories. They typically come down to one of:

• Data sovereignty: regulated industries, government agencies, or organizations that cannot allow whiteboard content (which may include strategic plans, diagrams, and design work) to reside on a third-party server
• Air-gapped or restricted environments: internal networks that cannot connect to external SaaS services
• Cost at scale: large teams where per-seat SaaS pricing becomes prohibitive and internal infrastructure is already available

If none of these apply, Miro’s free tier (three editable boards) or Excalidraw’s free browser version likely covers the actual need without any infrastructure commitment.

Excalidraw

Excalidraw is the easiest path to a self-hosted whiteboard. The self-hosted version is a standard web app that runs in Docker, uses WebSockets for real-time collaboration, and deploys in about an hour on a VPS with 1GB+ RAM. The source is on GitHub, deployment documentation is clear, and updates are straightforward.

What you get: an infinite canvas with basic drawing tools (shapes, arrows, freehand, text), real-time multiplayer editing, a hand-drawn visual aesthetic, and the ability to share rooms by URL. What you don’t get: templates, facilitation tools, sticky note voting, or advanced layout tools. Excalidraw is a sketching and diagramming tool, not a workshop platform.

For teams that need to host whiteboard sessions internally without sending content to an external server, Excalidraw self-hosted is the lowest-friction path. The trade-off versus Miro is significant in feature depth, but the deployment simplicity is unmatched in this category.

AFFiNE

AFFiNE is self-hostable via Docker and combines document editing, databases, and an infinite canvas (Edgeless mode) in one workspace. The self-hosted version (AFFiNE Self-Hosted) gives you the full application including real-time collaborative editing, local data storage, and the whiteboard canvas alongside your notes and databases.

Deployment requires Docker and Docker Compose, a domain, and SSL. The recommended minimum server spec is 2GB RAM. AFFiNE’s documentation for self-hosting has improved significantly over the past year.

The whiteboard experience in AFFiNE is more capable than Excalidraw but less polished than Miro. The canvas supports embedded documents, database views, and sticky notes that can convert to tasks — useful for teams that want whiteboarding to connect with their documentation workflow rather than existing as a separate tool.

Consideration: AFFiNE’s self-hosted collaboration features, particularly real-time sync across multiple users, depend on the server infrastructure you provide. Performance in a self-hosted environment is tied to your server capacity and network, unlike managed SaaS where the vendor handles this.

Penpot

Penpot is primarily a design and prototyping tool — an open-source Figma alternative — but its infinite canvas and vector-based drawing tools make it relevant for teams that need whiteboarding to connect directly with UI/UX design work. Wireframes, user flow diagrams, and interface sketches done in Penpot are SVG-based and can be handed off to developers directly.

Self-hosting Penpot requires Docker Compose and has well-maintained documentation. The deployment is more involved than Excalidraw but follows a standard pattern: Docker Compose file, domain configuration, email setup.

Who this fits: teams where whiteboarding is primarily for design and development workflows, and who want to eliminate the “hand-off gap” between ideation sketches and actual design files. Non-technical users (HR, marketing, sales) may find Penpot’s design-tool interface harder to pick up than Miro’s general-purpose whiteboard.

OpenBoard

OpenBoard is a desktop application — not a web app — designed for presentation and education contexts. It runs on Windows, macOS, and Linux, works fully offline with no server required, and supports stylus and touch input well. It mirrors the experience of a physical interactive whiteboard.

OpenBoard is not a real-time collaboration tool. It’s a presentation and annotation tool for a single user presenting to others. There’s no multi-user editing over a network, and no cloud sync. It’s the right choice for educators or presenters who need a reliable offline whiteboard application, not for teams doing distributed collaborative work.

What self-hosting a whiteboard server actually requires

For Excalidraw or AFFiNE: a VPS or dedicated server with 1–4GB RAM (2GB minimum for AFFiNE), Docker and Docker Compose, a domain name with DNS pointing to the server, SSL/TLS certificate (Let’s Encrypt works), and a responsible person for monitoring, updates, and backups.

Real-time collaborative whiteboarding requires WebSocket connections. If you’re deploying behind a corporate proxy or firewall, confirm that WebSocket connections are allowed. This is a common deployment blocker that isn’t obvious until you test actual collaborative sessions.

The practical decision

Simple self-hosted whiteboarding with easy deployment: Excalidraw. Whiteboard plus docs, databases, and notes in one self-hosted workspace: AFFiNE. Design and prototyping alongside whiteboarding for technical teams: Penpot. Offline presentation and annotation without server infrastructure: OpenBoard.

For teams not in regulated environments or without strong data sovereignty requirements: Miro’s free tier and Excalidraw’s hosted version together cover most whiteboard use cases without infrastructure maintenance. The operational cost of self-hosting is real — budget time for it, not just the initial deployment.

See also: Guides and Picks.