The complete knitter's toolkit

Your entire knitting life,
beautifully organised.

Stop juggling apps, spreadsheets and sticky notes. Woolwise is the only tool you'll ever need โ€” stash manager, substitution calculator, pattern library, project tracker and smart matcher, all in one place.

One payment. No subscription. Yours forever. Free to try, ยฃ9.99 to unlock everything.
Substitution result
6
skeins to buy
US 7โ€“9
4.5โ€“5.5mm needles
1,240
adjusted yards
Stash matcher โ€” Riverside Cardigan
Cascade 220 Superwash94%
Malabrigo Rios71%
My stash
24
yarns logged
ยฃ186
estimated value
Eight tools in one app
Every feature a knitter or crocheter actually uses, built to work together seamlessly.
โš–๏ธ
Yarn Substitution Calculator
Enter your pattern's yarn and what you have. Get the gauge-adjusted yardage, exact skein count, and needle size in seconds โ€” in US, UK, Japanese or metric sizes.
๐Ÿงถ
Stash Manager
Log every yarn you own with weight, fibre, colour, yardage and skeins. See your total yardage and estimated stash value at a glance. Your whole collection, organised.
๐Ÿ“ฆ
Yardage Estimator
No pattern yet? Pick a project type and size to get an estimated yardage range. Perfect for buying yarn at festivals before you've chosen what to make.
๐Ÿ“‹
Pattern Library
Save your favourite patterns with their yarn requirements โ€” weight, yardage, gauge. Pull them straight into the calculator or send them to the matcher with one click.
๐Ÿชก
Project Tracker
Track everything you're making, paused, or have finished. Log yardage as you go and watch the progress bar fill up. Never lose track of a WIP again.
โœจ
Smart Stash Matcher
The feature that changes everything. Every saved pattern is scored against your entire stash โ€” weight compatibility + yardage coverage โ€” so you always know what you can make right now.
๐Ÿ’ก
Beginner's Guide
Plain-English explanations of gauge, yarn weight, yardage, substitution โ€” everything a new knitter needs without the jargon. Plus a full glossary of knitting terms.
๐ŸŒ
Global Needle Sizes
Switch between US, UK/Canada, Japanese, and metric needle size systems. Results always shown in your system, with mm equivalents alongside.
๐Ÿ”ฎ
Coming soonโ€ฆ
Yarn label scanner, Ravelry pattern import, blocking calculator, colourwork yardage splitter, and more. All included in your one-time purchase.
Free calculators exist.
This is different.
01

It knows your stash

Free calculators make you type in numbers every time. Woolwise remembers every yarn you own. Substitution takes seconds, not minutes.

02

It tells you what you can make

The Matcher reverses the question โ€” instead of "can I use this yarn for that pattern?" it asks "which of my patterns could I start right now?" Game-changing for stash-busting.

03

Everything talks to everything

Save a pattern, match it to your stash, pull the yardage into the calculator, track the finished project. No copying numbers between tabs.

04

One payment, forever

No monthly fees. No "premium tier". ยฃ9.99 once and every feature โ€” including everything we build in the future โ€” is yours.

Woolwise vs. everything else
โœ“

Gauge-adjusted yardage calculation

Not just "divide by skein length" โ€” accounts for the area difference when gauge changes.

โœ“

Stash-aware substitution

Picks from your logged yarns automatically. No more hunting through your stash manually.

โœ“

Works for knitting AND crochet

Yardage estimates, project tracker, and pattern library all cover both crafts.

โœ“

International needle sizes

US, UK, Japan, and metric โ€” the right sizes for crafters everywhere.

โœ“

Built for the stash addict

Track value, yardage, fibre and colour for every skein. Know exactly what you have.

From the community
โ˜…โ˜…โ˜…โ˜…โ˜…
"I've been knitting for 20 years and I've never had a tool that does all of this. The matcher alone is worth it โ€” I found three patterns I could start immediately from my stash."
Sarah M. โ€” Worsted weight devotee
โ˜…โ˜…โ˜…โ˜…โ˜…
"The substitution calculator is so much smarter than anything I've used before. It actually accounts for gauge โ€” I got the right amount of yarn for the first time ever."
Emma T. โ€” Lace knitter, Leeds
โ˜…โ˜…โ˜…โ˜…โ˜…
"I crocheted for years with no idea what yarn weight meant. The help section explained everything without making me feel stupid. Bought Pro immediately."
Priya R. โ€” Recent convert to crochet
Simple pricing
Everything. Once.
No subscription. Ever.
Pay once, use forever. Every feature we add in the future is included. No monthly fees, no premium tiers, no catches.
ยฃ9.99
One-time payment ยท Lifetime access
Unlimited substitution calculations
Full stash manager with colour tracking
Yardage estimator for 12 project types
Unlimited pattern library
Project tracker with progress
Smart stash-to-pattern matcher
Beginner's guide & full glossary
US, UK, Japanese & metric needle sizes
All future features included
Get Woolwise Pro โ€” ยฃ9.99 โ†’
๐Ÿ”’ Secure payment via Stripe ยท Instant access ยท No subscription