A private screenplay production workspace for film and television
Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports
Stage
Not given
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Founded
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Based in
DE
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Pricing model
Free trial
Freemium
Pricing
Not given
Free: unlimited editor and preview, 3 saved diagrams, 5 AI uses total, PNG export 1× with watermark. Starter: $6.99/month or $69.90/year; 30 saved diagrams, 500 AI conversations per month, PNG export up to 4× without watermark. Pro: $11.99/month or $119.90/year; unlimited diagrams, unlimited AI, PNG
Key features
Scene recognition and parsing in four heading conventions
OCR for scanned PDF screenplays
Department markup with colour-coded text highlighting
Cost estimation per scene and department
Running time and story day tracking
Reference images and notes per scene
Revision history with coloured page markers
PDF and Excel export with filtering
Semantic search across the screenplay
Sync across Mac, iPad and iPhone
Live preview of Mermaid code as you type
AI diagram generator, editor and syntax fixer
PNG export on every plan; JPG, SVG and PDF on Pro
All 22+ Mermaid diagram types supported
Share diagrams via public links and embeds
Save diagrams to cloud with folders and version history
Keyboard shortcuts and autocomplete
Mobile-responsive editor with pan and pinch-zoom
What makes it different
Completely on-device with no cloud or account required
Designed specifically for department crew, not production management
Handles real messy production drafts in multiple formats without retyping
Scene preparation survives draft revisions without losing work
Integrates breakdown, costing and schedule in one place with no separate spreadsheet
No account or sign-up required to start editing diagrams
Affordable pricing: Starter at $6.99/month, Pro at $11.99/month
Diagrams render in your browser; nothing stored unless you choose to save
Fast editor with instant rendering and clear error messages
Mermaid Viewer