Self-contained single-file HTML+JS tools built to solve specific problems.
Each tool is a standalone .html file — no build step, no dependencies, runs anywhere.
Inspired by Simon Willison's approach to HTML tools.
Banner generator for the March meetup of Creative Coding Amsterdam
→Hershey CalendarGenerate plottable SVG and printable PDF calendars (month, quarter, year) at A6–A4 or custom sizes, portrait or landscape. Text uses Hershey or EMS SVG vector fonts.
→Pixel Art PrintPrint-sized pixel grids — A6/A5/A4 or custom, image and text layers rasterized to the grid with threshold dithering, IBM Plex Mono text, noise tints, step or sine wave animation, fast preview, and GIF / MP4 or WebM export.
→Plot PrepSVG decorator for pen plotting — adds paper outline, calibration markers, and page boundary layers.
→PTPX Postcard PlotterPostcard back generator — lays out 4× A6 cards on A4 with Hershey single-stroke text, address lines, stamp boxes, and Inkscape layers ready for plotting.
→Webcam adaptive Voronoi hatch (conference)Conference mode wrapper: opens adaptive Voronoi hatch with stage/fullscreen controls and MIDI mapping enabled.
→Webcam adaptive Voronoi hatchWebcam → body segmentation → Voronoi hatch; optional gradient relief or TensorFlow.js AR portrait depth for shading; spacing min/max mm; A6–A3 SVG export.
→Webcam Silhouette MosaicWebcam + ml5 BodyPix person mask, grid or Voronoi planes, hatch pattern fills, and SVG export for pen plotters.
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