A free and open source math plotter, easy to pick up
Free browser-based Roblox thumbnail maker with no sign-up, no watermark, no AI generation
Stage
Established
Startup
Founded
2011
2026
Based in
Not given
Not given
Pricing model
Open source
Not given
Pricing
Not given
Free: 3 watermark-free exports a day, no account required. Pro: $4.99/month or $29/year (or $49 lifetime) for unlimited exports and batch export of all sizes at once.
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
Upload and edit screenshots locally in browser without uploading to server
Add bold headline text with outline and shadow effects
Drag-and-drop sticker overlay system
Export at multiple sizes: 1920×1080, 1280×720, 512×512
8 headline text styles and 38 backdrop presets
Support for PNG, JPG and WEBP file formats
Export as clean PNG with no watermark or branding
Pro plan enables batch export of all sizes in one click
22 free template presets for quick start
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
No account or sign-up required—open the page and start immediately
Never uploads your files to a server—all processing happens on your device
Not AI-generated—uses your actual screenshot, not synthesized imagery
Three free watermark-free exports daily on the free plan
Works on any device with a browser—no installation or updates needed
ZeGrapher
ThumbBlitz