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A free, open-source Miro alternative with unlimited boards

Miro's free plan gives you three editable boards. Odinote gives you as many as you want, stores them on your own machine, and costs nothing — because it's open source.

Try it in your browser Download for Windows

Where Miro's free plan runs out

Miro is an outstanding tool for teams — whiteboarding, workshops, retrospectives, enterprise integrations. But it is built and priced for teams, and the free tier reflects that: three editable boards. If you are one person mapping out a game, a novel, a thesis or a product, three boards disappear almost immediately, and the upgrade is priced per user per month.

Odinote takes the parts a solo creative actually needs — the infinite canvas, spatial thinking, connectors between ideas — and removes the ceiling entirely.

Odinote vs Miro at a glance

 OdinoteMiro (free plan)
PriceFree foreverFree tier, then per-user pricing
Editable boardsUnlimited3
Open sourceYes — MIT licenseNo
Account requiredNoYes
Works fully offlineYes (desktop app)No
Where your data livesYour device (optional: your own Google Drive)Their cloud
Boards nested inside boardsInfinitely recursiveFrames, not true nesting
Live multi-user collaborationBasic (shared Drive folders)Best in class
Integrations (Jira, Slack…)NoneExtensive
Mobile appsNot yetYes
An honest note. If your work is a team of people editing the same board at the same time, with Jira and Slack hooked in, Miro is the right tool and Odinote will disappoint you. Odinote is aimed at the solo creative or small group who wants unlimited space, files that stay on their own disk, and software they can audit and fork.

Built for thinking, not for meetings

Miro's centre of gravity is the workshop: sticky notes, voting, timers, facilitation. Odinote's centre of gravity is the long-lived personal project — the design document you return to for a year, the worldbuilding bible, the art reference library.

That difference shows up in nested canvases: any board can contain a complete canvas, which can contain more boards, without limit. Instead of one enormous board you pan across forever, you get a tree you can walk into and out of, with breadcrumbs showing exactly where you are.

What you get

  • 16+ node types — rich-text notes, to-do lists, long-form documents, images with cropping and mirroring, audio, link previews, colour palettes, tables, calendars, frames and comments.
  • Connectors between any two nodes, curved or right-angle, with labels and styles.
  • Columns that physically hold cards, for kanban-style grouping inside a canvas.
  • Local vault — media saved as real files in a folder you choose, plus one-click JSON backup and restore.
  • Optional sync through your own Google Drive, so the same workspace opens on the web version and the desktop app.

No signup, no trial, no card

Open the web version and start dragging nodes onto the canvas. Nothing to register, nothing expiring in 14 days. See the user guide for everything it can do, or read why the project exists.

Open the web version View the source on GitHub