From Thrift Store Sweater to Perfect Crochet Project.
Rewind Yarn turns thrifted knitwear into reclaimed yarn skeins, calculated yardage, and crochet patterns that are mathematically guaranteed to add up.
Crafted for Thrifters & Crocheters
Everything you need to confidently turn second-hand wool into heirloom pieces.
Three-Photo Scan
Snap photos of the whole sweater, the care label, and an inside seam. Rewind Yarn helps identify the fibre composition, yarn weight, seam type, and whether it unravels cleanly.
Deterministic Engine
AI only reads the tag; our deterministic maths engine calculates the yardage and verifies every single stitch count so your yarn never runs out halfway through a project.
Row & Stitch Tracker
An interactive counter designed for hands-on crafting: keep screen awake, highlighted row tracking, secondary repeat counters, and instant stash booking when finished.
The Four-Step Recipe
How a 5-euro thrift sweater becomes your next favourite scarf or beanie.
Find & Weigh
Pick a sweater in a thrift shop and weigh it on a kitchen scale. Look for good fibres like pure wool, alpaca, merino, cotton, or linen.
Scan & Confirm
Take 3 photos in the app. Confirm the fibre percentage and seam construction. The app calculates estimated meters or yards available.
Unravel & Cake
Undo the chain stitch at the collar and cuff, wind into cakes or hanks, and wash to relax the yarn's crimp.
Crochet with Confidence
Select a matched pattern from your stash. Every pattern is scaled to your exact yarn weight and meter reserve.