What this site is

I work with Korean studies materials and classical medical texts.

That work keeps producing jobs no one can reasonably do by hand.
Erasing the black borders from several hundred scanned pages.
Typing Hanja that has to match down to the code point.
Pulling index terms out of a manuscript and tagging every one of them.

Nothing I found quite fit. What existed was hard to install, or wanted me to upload
the material to someone else’s server. So each time, I built a small tool that runs in the browser.

This site is the manual for those tools.
Not just how to use them, but why each one works the way it does and where people get stuck.

What you’ll find

Software — guides to the tools I built

They open in a browser with nothing to install.
Most of them process your files inside the browser, so nothing is uploaded to a server.

Technical skills — working with text

Mostly regular expressions: how to replace hundreds of things at once instead of fixing them one by one,
with exercises you can follow along.

Recipes — Korean home cooking

Only dishes I actually cook.
Every quantity, time, and heat level is written down, and what I learned making it goes in a separate “Points” section.

How these are written

  • Only what I’ve done myself. Tool guides are checked against the program’s own code; recipes are dishes I’ve cooked.
  • Limits and defaults come with reasons. Where you’d wonder why a number is what it is, I say why.
  • Written in Korean and English. The English is not a translation — it’s rewritten for its readers.
  • No padding. When there’s nothing more to say, the post stays short.

Get in touch

If a tool misbehaves, if something here is wrong, or if you want a tool that doesn’t exist yet,
tell me on the contact page. I built these, so I can fix them.

Every post and every tool on this site was written and built by me.