Solo developer building open utilities for everyday devs.

Shipping small useful tools, one at a time. Currently focused on yutils, a free collection of browser-based dev utilities and long-form guides.

Projects

yutils Live

66 free dev tools and 26 guides. JSON formatting, JWT decoding, Kubernetes YAML visualization, regex testing, and more — all running entirely in your browser. Available in Korean and English.

yutils.jdgrid.com →