About
Joseph Kato
Applied Mathematician /Computational Linguist
I'm Joseph Kato, an applied mathematician and computational linguist. I build open-source tools for working with natural language.
This site is where I write about language, public data, and data visualization — usually alongside a tool or dataset.
What I build
Vale CLI
A markup-aware linter for prose built with speed and extensibility in mind.
5,586 Stars 9.89M Downloads
Recognition
Book 2026
Write Better with Vale — Brian P. Hogan, The Pragmatic Bookshelf
Cited 2026
Linting Style and Substance in READMEs — arXiv — Vale cited as closest prior art
Grant 2025
FLOSS Fund — $10,000 — With FFmpeg, Zig, and Blender
Grant 2023
Appwrite OSS Fund — With Algolia, MongoDB, Fastly, and DigitalOcean
Award 2023
Google Open Source Peer Bonus — Nominated by Googlers for exceptional open-source contributions
Golang Weekly — A newsletter about Go with ~80,000 subscribers