Free
Free
$0 entry plan on the pricing page.
- Diagrams
- 3 diagrams
- AI chats
- 5 AI conversations per day
- Export
- Low-res PNG export with watermark
Mermaid Viewer pricing
● Identity checkedAssistant · Vendor site 2026-10-04
Mermaid Viewer is a browser-based editor to preview, edit, and share Mermaid diagrams with AI assistance. Paid tiers raise diagram limits, export quality, sharing, and version history while keeping a free entry plan for light use.
- Category
- Assistant
- Free access
- Free tier includes three diagrams, five AI conversations per day, and low-resolution PNG export with watermark.
- API access
- Not confirmed
Understand the total cost
Mermaid Viewer pricing & plans
Starter
$6.99 /mo
$6.99 per month on the monthly Starter pricing toggle.
- Diagrams
- 30 diagrams
- AI chats
- 500 AI conversations per month
- Export
- High-res PNG export without watermark
Pro
$11.99 /mo
$11.99 per month on the monthly Pro pricing toggle.
- Diagrams
- Unlimited diagrams
- AI chats
- Unlimited AI conversations
- Formats
- PNG, JPG, PDF, and SVG exports
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
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