A free and open source math plotter, easy to pick up
HTML design in. Editable InDesign out.
Stage
Established
Startup
Founded
2011
2026
Based in
Not given
ZA
Pricing model
Open source
Paid
Pricing
Not given
Free preview: two most detailed pages of any design, twice, no account needed. $49 lifetime license: unlimited full conversions, activate on up to 10 browsers or devices, works in browser and from AI agents over MCP.
Key features
Natural function notation like f(x) = 2 + cos(x)
Sequences from recurrence relations
Parametric equations with custom intervals
CSV data import and spreadsheet editing
Animated constants and variable families
Vector and image exports (SVG, PDF, PNG, JPEG, BMP, PPM)
Grid customization with π multiples for ticks
Interactive navigation with drag and zoom
Multi-language support in 9 languages
Built-in manual and automatic work saving
Converts HTML to native .idml files that open in Adobe InDesign
Real text frames with reflowable content
Named paragraph and character styles automatically created
Charts and tables as editable vector objects
Images placed and linked in a Links folder
Free preview of two most detailed pages without account
MCP server integration with Claude, Cursor, and other AI agents
14-day fix-or-refund guarantee on licensed conversions
Supports output in Affinity Publisher as well as InDesign
Works with all CSS frameworks including Tailwind and Bootstrap
What makes it different
Draws mathematical objects exactly as written on paper with natural notation
Handle CSV files of several million cells
Objects can build on each other in expressions
Exports with exact size in real centimeters
Fully free and open source under GNU AGPL license
Deterministic conversion engine—no machine learning, same input always produces same output
Files deleted immediately after conversion—complete privacy, no storage or training
Native InDesign files, not PDFs—fully editable text, styles and charts
Direct integration with AI design tools through MCP protocol
ZeGrapher
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