Fast handwritten LaTeX symbol recognition (Rust/WASM)
I use Detexify (https://detexify.kirelabs.org/classify.html) a bunch when writing in LaTeX, which lets you draw a symbol and gives you the LaTeX command. But it's quite slow - it takes ~2s to load the page and ~1s to classify each symbol. So I made a faster version using Rust and WASM, running entirely in browser. This cuts the classification time down to ~7ms - fast enough to run on every mouse move, giving you live predictions as you draw.
Does the same job
all alternatives →
- RARinohType – A modern LaTeX in 6500 lines of Python2013 · mos6581.org · ▲153
- IWI wrote a rust program to translate images into textual line art2021 · github.com · ▲70
- IMI made a collaborative ASCII editor2021 · ▲53
I made a website for drawing ascii art with other people https://ascii-collab.app/ It's been online for a little over a year so there's a fair bit of stuff to browse if you want to look around (so much that I even made a poster https://ascii-collab.app/poster.png) There are other websites like yourworldoftext that do this but ascii-collab has some extra features like per-user undo/redo, box selection, a color highlight mode to see who made particular changes, and there's admin tools so I can remove spam. The code is open sourced here…
More dev tools this month
the category →
Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com
Launched alongside, January 2026
the whole month →- IN
Hey HN! I wanted to share something I built over the last few weeks: isometric.nyc is a massive isometric pixel art map of NYC, built with nano banana and coding agents. I didn't write a single line of code. Of course no-code doesn't mean no-engineering. This project took a lot more manual labor than I'd hoped! I wrote a deep dive on the workflow and some thoughts about the future of AI coding and creativity: http://cannoneyed.com/projects/isometric-nyc
AI · Jan 2026 · cannoneyed.com
Automatic AI-powered code reviews the moment you open a PR
Dev tools · Jan 2026 · kilo.ai
