The Modern Knitware Replacement

Garment math,
finally in the browser.

KnitWare Modern brings the precise garment mathematics serious knitters have relied on for decades — gauge, stitch counts, sleeve shaping, yardage — into a clean, modern web app. No Windows XP required.

See what it does
1 free project · No credit card · Works on Mac, Windows, iPad
22+
Garment styles
100%
Browser-based
PDF
Pattern download
Free
To start
What it does

Everything you need to design a garment.

From your gauge swatch to a print-ready PDF pattern — KnitWare Modern does all the math, so you can focus on the knitting.

📐

Gauge Calculator

Enter your swatch measurements and KnitWare Modern calculates exact stitches and rows per inch. The foundation of every accurate garment.

🧮

Garment Math Engine

Cast-on counts, body rows, sleeve shaping, armhole depth — all calculated automatically. Uses the same Diophantus Magic Formula as the original Knitware 2.50.

📊

Schematic Diagrams

Your garment pieces drawn to scale with dimension annotations — front/back panel and sleeve — exactly as the original Knitware produced them, included in every PDF.

🧶

Yarn Yardage Estimator

Accurate yardage and skein counts based on garment type, yarn weight, and finished measurements. Know exactly what to buy before you cast on.

📄

PDF Pattern Download

Download a clean, print-ready PDF of your complete pattern — gauge, stitch counts, sleeve shaping, yardage, schematics, and written instructions. All in one document.

📁

Saved Projects

Save as many garment projects as your plan allows and return to them any time. Measurements, yarn, and calculations are always there.

"Finally — everything Knitware always gave me, but I can actually open it on my Mac."
Kaye McGregor · Longtime Knitware user · KnitWare Modern Beta Tester
Pricing

Simple. No surprises.

Start free with 1 project. Upgrade when you're ready for unlimited garments.

Free
$0
3 projects · No card needed
  • 3 saved projects
  • Sweater garment type
  • Gauge calculator
  • Yarn yardage estimator
  • PDF pattern download
  • Schematic diagrams in PDF
MOST POPULAR
Pro · Monthly
$9.95
per month · Cancel anytime
  • Unlimited projects
  • All garment types
  • Full garment math engine
  • Schematic diagrams in PDF
  • Pattern library access
  • New features as released
Pro · Annual
$89
per year · Save 25% vs monthly
  • Unlimited projects
  • All garment types
  • Full garment math engine
  • Schematic diagrams in PDF
  • Pattern library access
  • New features as released

All Pro plans include unlimited projects and every garment type. Equivalent to $7.42/month on the annual plan.

Common questions

Is this a replacement for the original Knitware 2.50?
Yes, in spirit. KnitWare Modern uses the same core methodology — including the Diophantus Magic Formula for sleeve shaping — and runs entirely in your browser. No CD-ROM, no Windows XP.
What garment types are supported?
Free accounts include the sweater garment type. Pro accounts unlock all types: sweaters, cardigans, vests, hats, mittens, socks, and baby garments. Each type automatically adjusts ribbing depth, wrist circumference, and ease.
Can I cancel my monthly plan?
Yes, at any time. Your projects remain saved and readable for 30 days after cancellation.
Does it work on Mac and iPad?
Yes — it runs in any modern browser. Chrome, Firefox, Safari, and Edge on any device.

Ready to try it?

Start free — 1 project, no credit card required.