7 craft modules. Deterministic maths. Camera scanning. Photo-to-pattern. PDF and Word export. This is what world-class craft tooling looks like.
Every other yarn substitution tool asks AI to estimate your stitch counts. AI can get this wrong — especially on complex patterns with raglan shaping, waist darts, or intricate sleeve caps.
StitchPlus runs a deterministic JavaScript calculator first. It computes your stitch ratio, row ratio, and tension adjustment to 4 decimal places. The AI receives those precise numbers and uses them to rewrite your pattern instructions. The code does the maths. The AI adds the expertise.
Each module is built with deep knowledge of that craft's specific maths — different units, different gauging systems, different finishing requirements. Not a generic calculator painted a different colour.
The flagship module. Designed for the full complexity of knitted garments — from simple scarves to shaped raglan sweaters with multi-size grading.
All the same precision as the knitting module — but calibrated for crochet's specific characteristics, including the 30% extra yarn crochet typically requires vs equivalent knitting.
Fabric substitution is the sewing equivalent of yarn substitution — and it's equally maths-heavy. Bolt widths, stretch percentages, seam allowances, and grain direction all affect how much fabric you need.
Quilting has its own unique maths — ¼" seam allowances, block-based construction, and fabric requirements that cascade across dozens of cuts. StitchPlus handles all of it.
Two dedicated modules for needle arts — with the specific unit systems each discipline uses (fabric count, strand count, stitch types) rather than a generic calculator.
For pattern designers who need to produce technically correct multi-size patterns for publication. StitchPlus generates the full graded spec from your gauge and size chart — ready to build instructions around.
Photograph any garment — in a store, in a magazine, on a mannequin. AI identifies construction details, you confirm, enter your measurements, and get a complete pattern.
Paste any confusing instruction, abbreviation, or technique — AI explains it in clear plain English with step-by-step guidance. Free and unlimited on Standard and Unlimited.
Describe your project, budget, and preferences — get 5 specific yarn recommendations with brand names, prices, and reasons why each one works. Free and unlimited.
Photograph a yarn label — AI reads care symbols, weight, gauge, and fibre content and explains everything in plain English. Tells you if the yarn suits your project. Free and unlimited.
Paste any pattern in any language — Japanese, German, Dutch, French, Italian, English. AI identifies every abbreviation and symbol and rewrites the instructions in clear plain English. Unlimited plan.
Describe your yarn, style, and measurements — StitchPlus generates a complete, ready-to-use pattern including materials list, gauge, abbreviations, full row-by-row instructions with every stitch count, all shaping, finishing, and blocking notes. Export as PDF or Word. Pro Add-On (+$5/month) — 5 per month.
You already have a pattern — resize it to completely different measurements. Children's to adult, S to 3XL, any size to any other size. Handles gauge changes at the same time. Pro Add-On — 5 resizes per month.
Every calculation exports as a branded PDF or .docx — with measurement tables, gauge verification, yarn comparison, and full instructions ready to take to your needles.
Save measurements for every family member. Load any profile in one tap — bust, body length, arm length, ease, and tension all fill instantly. Available on Standard and Unlimited.
Install from your browser — no app store. All offline tools (needle chart, gauge scaler, unit converter, row counter) work without internet. On Android it's virtually native.
Generate a QR code for your PDF patterns and an embed for your website. Customers self-serve every yarn substitution. Your gauge pre-loaded. Your inbox quiet.