A Miro alternative that builds the diagram for you
An alternative to Miro — online whiteboard and collaboration platform
OpenCharts pairs an infinite whiteboard with AI that turns PDFs, decks, and prompts into structured flowcharts — plus notes and presentations in the same free workspace.
Why teams are switching from Miro
AI that builds the diagram, not just sticky notes
Miro AI mostly clusters sticky notes and summarizes boards. Drop a PDF, a slide deck, or a rough prompt into OpenCharts and Theo generates a fully structured, editable flowchart — swimlanes, decision branches, and all — in 5–15 seconds.
One workspace instead of stacking tools
Miro is a whiteboard. The moment you need docs or a deck, you're opening Notion and Google Slides too. OpenCharts bundles whiteboards, structured flowcharts, notes, and AI presentations under one login — so a brainstorm turns into a shipped deck without leaving the tab.
A free plan that doesn't cap your team
Miro's free plan caps you at 3 editable boards and limits collaborators per board. OpenCharts' free plan ships unlimited real-time collaborators, threaded comments, and version history — AI generation included — with no credit card required.
Built for AI agents, not just humans
OpenCharts exposes a public MCP server (19 tools) so Claude Desktop, Cursor, Warp, and VS Code can read and write your projects directly. Miro has no equivalent for AI-agent workflows.
See it in one workspace
Whiteboards, flowcharts, notes, and decks — the same canvasesMiro makes you split across tools.
OpenCharts vs Miro, at a glance
Pricing that doesn't punish you for growing
Every canvas, AI on every plan, unlimited real-time collaborators.
Billed per seat — cost climbs as your team grows.
- ·Free plan caps you at 3 editable boards
- ·AI features are a limited assist layer, not full diagram generation
- ·No notes editor or presentation builder — you'll need separate tools
- ·No public API or MCP server for AI agents
Prefer per-seat billing for a larger team? OpenCharts Teams is $14.99/user/month — 25% less than Miro Business's $20/user/month.
Switch from Miro in 3 steps
Export your Miro board
Open any Miro board and export it as a PDF or PNG from the board menu.
Drop it into OpenCharts
Create a new whiteboard or flowchart project and drag the exported file onto the canvas.
Theo rebuilds the structure
Theo extracts the shapes, sticky notes, and connections into native, editable elements — ready to theme, collaborate on, and export.
- ·Miro's facilitation suite (timers, voting, breakout rooms) is more mature for large, live workshops.
- ·If your team depends on Miro's marketplace of third-party workshop apps, that ecosystem doesn't carry over.
Frequently asked questions
What is the best free alternative to Miro?
OpenCharts is a free-forever alternative to Miro: an infinite whiteboard plus AI flowchart generation, notes, and presentations, with unlimited real-time collaborators and no credit card required. Miro's free plan caps you at 3 editable boards and limits collaborators per board.
Is OpenCharts really free, or is AI a paid add-on?
AI generation is included on every plan, including the free one. You get monthly AI credits at no cost — it's never a separate paid add-on the way Miro AI is layered on top of a Miro subscription.
Can I import my existing Miro boards?
Yes. Export your Miro board as a PDF or PNG, drop it into OpenCharts, and Theo rebuilds the structure as native, editable nodes and edges you can theme, collaborate on, and re-export.
How is OpenCharts different from other Miro alternatives like Mural or FigJam?
Most Miro alternatives are still whiteboard-only. OpenCharts adds AI document extraction (PDF/PPTX/image → flowchart), a real notes editor, an AI presentation builder, and a public MCP server for AI agents — all in the same workspace, not a separate tool.
Does OpenCharts replace Miro for team workshops?
For brainstorming, mind maps, retros, and journey maps, yes. OpenCharts doesn't yet match Miro's dedicated facilitation suite (timers, voting widgets, breakout rooms) for very large, live workshops — see the honest notes above.
Can AI agents like Claude or Cursor connect to OpenCharts?
Yes. The public OpenCharts MCP server exposes 19 tools with bearer-token auth, so Claude Desktop, Cursor, Warp, and VS Code can read and write your projects directly. Miro has no equivalent.
Go deeper
Make the switch from Miro
No credit card required. Free real-time collaboration, AI generation, and full export on every plan.