21st vs Miro
Which Design AI tool is better in 2026?
21st
Infrastructure and UI building blocks for the agentic internet
Miro
AI-powered visual collaboration and online whiteboard platform for distributed teams
Side-by-side
Miro leads on both fronts — more capital raised ($476M) and a lower entry price than 21st.
| Metric | 21st | Miro |
|---|---|---|
| Taglinei | Infrastructure and UI building blocks for the agentic internet | AI-powered visual collaboration and online whiteboard platform for distributed teams |
| Foundedi | 2026 | 2011🏆 |
| HQi | San Francisco, US | San Francisco, United States |
| Employeesi | 1-10 | 2840🏆 |
| Neuron scorei | 50 | 77🏆 |
| Total fundingi | $500K | $476M🏆 |
| Latest roundi | Seed · Jan 2026 | Series C · Jan 2022 |
| Valuationi | — | $17.5B🏆 |
| Cheapest paid plani | Pricing not disclosed | From $8/mo🏆 |
| Free plani | ✗ | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Pricing not listed | Free · From $8/mo |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for 21st and Miro.
| Capability | 21st | Miro |
|---|---|---|
| MCP support | ✗ | ✓ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✓ |
| OAuth 2.0 | ✗ | ✓ |
| SDK languages | — | 2 (JavaScript, Web SDK) |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of 21st
- Newer company (2026)
🔵 Strengths of Miro
- Has raised more capital ($476M vs $500K)
- Higher Neuron score (77 vs 50)
- Offers a free plan
- Offers a free trial
Which should you choose?
Choose Miro if price matters most — it starts at Free · From $8/mo, which is friendlier for teams watching burn. Both AI Design tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Miro if you want the most established option — it has raised $476M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
21st vs Miro — which is better?
It depends on your priority. 21st is the leaner option; Miro is cheaper to start. See the side-by-side table above.
Is 21st cheaper than Miro?
No — Miro's cheapest paid plan is Free · From $8/mo, while 21st's is Pricing not listed.
Do 21st and Miro offer free plans?
21st: Paid only. Miro: Yes, has a free plan.
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