Just build.
ThreadCraft Labs builds local-first hardware and software that earn their place in the room, and still work in ten years. No cloud, no account, hand-finished in Wisconsin.
Products
6 in allHardware and software that earn their place in a home, and keep working for years.
FinchCalc
Free calculators and quick file tools, right in your browser.
Learn moreFeatherPDF
Simple PDF tools that work right in your browser.
Learn moreLinden
The air in your home, made visible.
Learn moreLedger
Bookkeeping that quietly runs itself.
Learn moreSightline
Home camera software that keeps everything on your own device.
Learn moreMaterials Tracker
Keeps track of every part that goes into a build.
Learn more
About
ThreadCraft Labs is a Milwaukee studio building local-first hardware and software. The flagship is Linden, an air monitor and purifier with a friendly e-ink face and no cloud. Alongside it is a family of small, honest software tools. The throughline is simple: build things that earn their place in a home and keep working for years, with your data staying on your own devices.