An open textbook for Discrete Mathematics, as taught at the University of Northern Colorado

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.

Open-Source Collection of Social Engineering Pretexts

LayoutSans — Pure TypeScript 2D flex/grid layout engine powered by Pretext. Zero DOM. Zero WASM. Gives exact pixel positions for any flex/grid tree. Full canvas text interaction: selection, copy, Ctrl+F search, hyperlinks, and screen-reader a11y. Runs everywhere (Node, Bun, Deno, Workers, browser).

Pure JavaScript/TypeScript CSS layout engine — no browser DOM required

Universal text preparation and line layout for any SkiaSharp-based UI, with grapheme-aware wrapping, locale-aware segmentation, bidi support, and streaming line walking.

A curated list of demos, community projects, tips, tutorials, and news for @chenglou/pretext — the 15KB DOM-free text layout engine that's 500x faster than browser layout

Curated ecosystem list for projects built on Pretext, with live demos and community examples.

Bad Apple!! Rendering using Cheng Lou's Pretext library

The Community Tweet Wall — a curated, newspaper-style wall of tweets from the community.

Embed anything in text, now without the geometry code. The missing abstraction layer for @chenglou/pretext. One function call to flow text around circles, rectangles, ellipses, and polygons at 60fps.

Dive into a realistic fishing experience right in your browser - no installation required, no restrictions. Dynamic weather changes, lifelike fish behavior, and sophisticated physics create a fully immersive experience. Here, every cast counts, and every fish is the result of your strategy, patience, and skill.

Discrete Math for Shockers - textbook for Math 321 at Wichita State University

An article introducing you to fundamentals concepts of programming.

Multi-CLI skill bundle and npm CLI for Pretext-driven text layout, typography, and frontend motion.

Pinterest-style masonry grid with Pretext height prediction. 10K+ cards virtualized.

Another attempt to make modern UIs accessible

PDF document builder & npm library with pixel-perfect text wrapping. Powered by Pretext.