Free
PrivyMermaid
Private diagramming essentials, always on your device.
- Offline Mermaid preview
- Live Mermaid source editing
- Theme selection
- Export SVG, PNG and
.mmd
Choose your Mermaid workspace.
Start with a complete, offline diagram editor. Choose Pro when you want local AI assistance from the Ollama server you control.
Pro
Local AIPrivyMermaid Pro
Everything in Free, plus AI that stays on your local network.
- Generate diagrams from a description
- Fix Mermaid syntax and improve layouts
- Connect to Ollama over your LAN
- See AI responses stream into the editor
Free and Pro, side by side
Both editions keep diagram creation, rendering and export on your iPhone or iPad. Pro adds optional AI through your own Ollama server.
| Capability | Free | Pro |
|---|---|---|
| Offline diagram preview | Included | Included |
| Mermaid source editing | Included | Included |
| Theme selection | Included | Included |
| Export (SVG, PNG, .mmd) | Included | Included |
| AI Ask — generate diagrams from a description | — | Included |
| AI Fix — auto-correct syntax and layout | — | Included |
| LAN Ollama connection | — | Included |
| Streaming AI responses | — | Included |
Free and Pro capabilities as published for iPhone and iPad.
Your model. Your network.
Ask, fix and refactor without sending diagrams to a hosted AI service.
Pro connects directly to the Ollama endpoint you choose. Describe a workflow to create a starting diagram, repair Mermaid syntax, or refine a busy layout—all with your local model.
AskTurn a description into Mermaid
FixCorrect syntax and layout issues
LANUse the Ollama server you run
Available for iPhone and iPad
Free and Pro are separate App Store downloads for iOS and iPadOS. PrivyMermaid on macOS and Chrome has its own local-AI workflow, while Android remains a developer preview.
See every PrivyMermaid platform