Tartan / Plaid Generator
Build a tartan from a sett — the list of threads that defines the cloth. Each colour repeats for a thread count, then the sett runs both across and down the fabric, and the crossings are woven with a real over/under twill so mixed threads blend to their average colour.
Classic setts
Sett editor
Sett width: 82 threads · 656 px · repeated period 163 threads (mirrored)
Thread sequence (one full period)
Weave & output
Turn the twill off to compare with a flat grid: identical colours stay solid, and every crossing collapses to the plain average of the two threads.
About this tool
A sett is read across the warp and down the weft, so every crossing of two threads is evaluated individually: matching threads keep their colour, differing threads average, and a 2/2 twill shifts the over/under diagonal one cell per row to reproduce the woven texture of real cloth. Widen a colour to two or four threads and you get the fine guard lines that make tartan recognisable. The whole fabric is rendered on an HTML canvas in your browser — nothing is uploaded anywhere.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Tartan Generator really free?
Yes. Tartan Generator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Tartan Generator upload my data?
No. Tartan Generator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Tartan Generator is ready to use on desktop or mobile.
Does Tartan Generator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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