Predict React Native text heights before rendering. Native TextKit/TextPaint measurement + ~0.0002ms JS layout. FlashList, streaming AI chat, typewriter, pinch-to-zoom, obstacle reflow, Dynamic Type, Expo Web. 386 tests. MIT.

DOM-free text measurement playground for React — 13 animated text effects built with CSS and requestAnimationFrame, powered by @chenglou/pretext

Hobby/learning project — a small geometry layer on top of @chenglou/pretext: turn any 2D shape (holes, concave polygons, glyphs, image masks) into per-row spans, plus cursor↔point mapping. Not a Pretext replacement.