Convert any thread across all 6 brands here, free — and let StitchThis track your real stash so the answer to "do I already own something close?" is one click, not a search through 12 storage boxes.
The converter is the free taste. Inside StitchThis, your collection becomes a living inventory that converts, substitutes, shops and tidies itself — so "do I already own something close?" is answered before you ever open a chart.
One tidy stash across all 6 brands — counts, colors and what's running low. Add a skein once and StitchThis remembers it everywhere.
This whole tool, built in. Any pattern in any brand instantly maps to the threads you actually have — with the same accuracy you see above.
Generate a pattern and StitchThis quietly favors the floss you already own — fewer trips to the store, less money on near-duplicate shades.
Mark a pattern complete and the floss it used comes off your count automatically — so your stash always reflects what's really in the box.
Members can upload a spreadsheet or snap a photo of the floss box — StitchThis reads the numbers and builds your stash for you.
Old conversion charts give you a single one-to-one swap and call it a day. The problem: no two brands dye to exactly the same color, so a "matching" number can be noticeably off — sometimes a full shade lighter or warmer. That's fine for a background, and a real problem for skin tones or gradients.
This converter measures every match the way your eye actually sees color, then turns it into a simple % match so you know at a glance how safe a swap is:
| % match | What you'll see | Good for |
|---|---|---|
| 98–100%Identical | The eye can't tell them apart | Anything, including skin & blends |
| 93–97%Excellent | A trained eye might spot it side-by-side | Almost any project |
| 86–92%Great | Visibly different on close inspection | Fills & backgrounds |
| <86%Closest | The nearest the brand makes | When you just need something near |
Under the hood, every color is compared in CIELAB color space (the same ΔE measurement the textile industry uses) — we just translate it into a percentage so you don't have to think about the math. Showing the two closest colors per brand lets you trade a hair of accuracy for a thread you may already own.