Small tools for everyday jobs.
Craftory is a one-person studio making free web apps. Each one does a single job, and does it without an account.
Recipe to shopping cart
Cartify
Paste a recipe link. Get every ingredient as a search link on your grocery store, in your country.
LiveOpen CartifyWord search book maker
Bookgen
Pick a theme and a word list. Get a print-ready word search book as a PDF, answer pages included.
Early accessOpen BookgenNext tool in progress
A new app goes on this board every few weeks.
From the workbench
How the apps are built, what broke, and what got fixed.
My SSRF guard blocked 127.0.0.1 and almost nothing else
Cartify fetches URLs that strangers paste in. Here is every hole my first SSRF guard missed, from bracketed IPv6 to redirects, and how each one got closed.