Your pattern PDF,
transformed into a tracker.
Import any knitting or crochet PDF. InterTwined reads the instructions, organizes them into sections with row counts, and tracks your place stitch by stitch. No manual setup. Just drop it in and start knitting.
From PDF to first stitch in minutes
Drop in any pattern PDF. InterTwined extracts sections, row counts, gauge, and sizing — no manual setup, no spreadsheets, no sticky notes. You're ready to cast on before your coffee gets cold.
A tracker that knows your pattern
See the exact instruction and stitch count for every row. Watch your progress on a garment schematic built from real stitch math. Close the app, come back tomorrow — your place is saved.
We don't generate patterns. We help you follow yours.
Every word you see in InterTwined comes from the pattern designer — not generated. We don't create instructions, invent stitches, or replace anyone's work. Your original PDF is always visible right beside the tracker.
What InterTwined does is read — it identifies sections, counts rows, detects sizing, and organizes what's already on the page so you can track your place without losing your mind. The designer wrote the pattern. We just help you not lose your spot in it.
Your patterns are not used to train language models. InterTwined uses Anthropic's commercial API, where all data is automatically deleted within 7 days and is never used for model training — by policy, not just by promise. No tech company is learning to write patterns from your PDFs.
From PDF to first stitch in under a minute
Import your pattern
Drop in any PDF — from your files, your Ravelry library, or a link. The on-device parser instantly shows what it found.
One tap to analyze
The engine receives pre-extracted checkpoints as anchors from your PDF, then structures every row around them. Scored for quality.
Knit with confidence
Follow along row by row with your instruction, stitch count, and position on the garment schematic. Your PDF is always one glance away.
PDF and tracker, side by side
Turn your phone sideways or open on iPad — the pattern PDF sits on the left, your tracker on the right. Resize the split to your preference. No more switching between apps.
Pre-analyzed before extraction even starts
12 feature dimensions extracted in milliseconds: cast-on, gauge, sizes, pieces, stitch checkpoints, shaping math, chart references, and more.
Never lose your place again
Each row shows the exact instruction and stitch count. Tap to advance, swipe to go back, or use voice commands hands-free. Works for knitting, crochet, and amigurumi.
See your garment take shape
Generated from real stitch counts — not a generic illustration. Highlights your current position as you knit. Best experienced in landscape.
Your pattern. Your PDF.
Your place, never lost.
InterTwined isn't a PDF reader with a counter bolted on. It understands what your pattern says — sections, shaping, stitch counts — and keeps your place through every row, every session, every frog-and-restart.
PDF and tracker, always together
Turn your phone sideways. Your original PDF sits on the left. Your tracker on the right. Drag the divider to fit your preference. No app-switching. No losing your place. The designer's words are always one glance away.
One row at a time. That's it.
See exactly what to do on this row — the instruction, the stitch count, and where you are in the section. Tap to advance. Swipe to go back. Close the app, come back tomorrow. Your place is saved.
"Next row." Voice commands keep your hands on the needles. Works with AirPods, your phone speaker, or just the built-in mic. No wake word.
Two things that used to be on you
Charts that follow along
When your pattern says to work a chart, InterTwined finds that chart in your PDF, works out which chart row belongs to the row you are on, and marks it on the chart itself.
Advance a row and the chart advances with you — through repeats, and across sections that pick the chart up exactly where the last one left off. No sticky notes down the side of the page.
Know how much yarn before you cast on
Enter your yarn and the estimator works out how many skeins the project calls for, with a safety buffer built in.
Better to find out at the yarn store than three rows from the bind-off, hunting a dye lot that sold out in March.
We don't guess. We verify.
Before the AI ever sees your pattern, a deterministic parser has already extracted every verifiable fact — cast-on count, gauge, stitch checkpoints, shaping math, section headers. These become anchors. The AI structures the rows around facts it can't argue with.
Chain-of-thought math. The model shows its stitch arithmetic before outputting counts. If it can't explain the math, it can't fake the number.
7-dimension quality score. Every extraction is scored across stitch math, section integrity, instruction quality, and four more dimensions. You see the score before you start knitting.
Auto-fix when needed. If the score is below threshold, the engine identifies exactly which rows have issues and re-analyzes them. Most patterns land at A or A+ on the first pass.
Watch your garment take shape
The garment schematic is generated from real stitch counts — not a stock illustration. Every piece is shaped to actual proportions. As you knit, your current position highlights on the shape.
Sweater body, sleeves, yoke, collar — all mapped. For amigurumi, each part (head, body, legs, ears) tracks separately.
Changed your mind on size?
Re-extract for any size in the pattern. Each extraction is saved separately — switch between them without losing progress on either. Because gauge swatches lie sometimes.
Browse Ravelry, import in one tap
Search free patterns by category. Sort by rating or popularity. See star ratings and project counts. Tap to import — the PDF downloads and your project is created. Connect your account to browse your purchased library too.
The stuff you actually need at 11pm
Four modes. Enter your swatch, get exact numbers.
Stuck on a confusing instruction? Ask. It sees your pattern and your current row.
US, metric, UK. No more mental math at the yarn store.
Set reminders at specific rows. The app tells you when you get there.
Track hours, see your pace, estimate completion.
Ready to stop losing your place?
2 free extractions. A free pattern assistant. 125+ curated patterns. No subscription.
Download for iOS125+ curated patterns, ready to knit
Every pattern pre-analyzed, quality-scored, and validated. Import one and start tracking — no extraction credit needed.
Browse, tap, start knitting
Every pattern shows the designer, difficulty rating, yarn weight, gauge, and a quality score. Tap "Start This Project" and you're tracking rows in seconds.
We're adding new patterns every week from free sources across the web — always with designer attribution and links to the original source.
12 categories and growing
Plus mittens, cowls, bags, and more added regularly.
Every pattern credits its designer
Our library only includes freely available patterns, always with full attribution and a link to the designer's original source. We're here to help you follow patterns, not take credit for them.
Don't see your pattern? Import any PDF — DROPS, Yarnspirations, Ravelry, Etsy designers. If it's a knitting or crochet pattern, InterTwined can read it.
Download FreeNo subscription. No surprises.
Every download includes 2 free pattern extractions. Need more? Buy credit packs — use them whenever you want, they never expire.
We're building this for crafters, not shareholders
Every dollar from credit packs goes back into expanding the curated pattern library — more patterns, better extraction quality, and a better app for you. We want to build the best crafting companion we can afford.
No venture funding. No ads. No subscription. Just a small team that knits.
Download Free• Pattern assistant — free
• Unlimited row tracking
• Garment schematics
• On-device pattern pre-scan
• 125+ curated library
• Credits never expire
• No subscription
• Buy as many packs as you need
Scored and transparent
Every extraction is validated and scored out of 100 across seven dimensions. You see the score and a detailed breakdown before you start knitting — full transparency on what the extraction found.
Extractions use advanced language models, which cost real money to run — there's no way around it. We price with modest margins to keep the lights on, not to profit off your craft. You're paying for the best models available, not a markup.
A problem decades in the making
Automated knitting pattern parsing has been called unsolvable. Here's why — and why we think we're close.
The academic attempts
In 2019, MIT's CSAIL published "Neural Inverse Knitting" — a system that could look at a photograph of knitted fabric and reverse-engineer the machine knitting instructions. Impressive, but it solved image-to-machine-code, not human-pattern-to-structured-data.
Other efforts formalized knitting as a topological problem — modeling yarn as curves in 3D space, building formal grammars for notation. Beautiful mathematics. None of it helps a knitter follow a DROPS pattern on a Tuesday night.
Why the apps gave up
KnitCompanion, Row Counter, StitchFiddle — every existing app requires manual entry. They're PDF readers with counters bolted on. One startup, Knitrino, attempted interactive patterns in 2020. Their founders said it plainly: "Each pattern has to be manually built by us." The problem beat them.
The seven hard problems
What changed
Large language models. Not as a magic wand — a raw language model makes mistakes on stitch math. What works is a hybrid approach: a deterministic parser extracts every verifiable fact from the PDF (cast-on counts, gauge, checkpoints, shaping math), then feeds those as anchors to the most capable language models available. The parser keeps the model honest. The model handles the ambiguity the parser can't.
We validate every extraction across seven quality dimensions and score it out of 100. Today, 98% of patterns in our library score A or A+. The hardest patterns — DROPS sweaters with 8 charts and simultaneous shaping — went from failing grades to 97/100.
Three ways to track — each one a safety net
Every extraction gives you all three modes. Start where you're comfortable. Step up when you're confident. Fall back when you'd rather just read the PDF. You're always covered.
The full picture
Row-by-row extracted instructions with computed stitch counts, shaping events highlighted, and a live garment schematic that tracks your position.
Works great on most patterns. The most detailed knitting tracker available — when the extraction nails it, nothing else comes close.
The reliable middle
Your original pattern text, organized by section with completion checkmarks and row counts. The designer's words — we just keep your place in them.
Battle-tested on every pattern we've thrown at it. Most crafters will live here. Your PDF is always one glance away.
The safety net
Your PDF on top, a counter and garment schematic below. The extraction organized your pattern into sections with the right row counts — tap Next Row and read along.
If anything's off, edit the row count with one tap. The simplest possible tracker. It always works.
All three modes use the same extraction and the same credit. Switch between them anytime — your progress carries over.
We think we're close. We need your help.
No one has shipped automated pattern extraction at this level before. We're confident in the engine, but every pattern is different — every designer has their own style, notation, and quirks. The more patterns our system sees, the better it gets.
That's where you come in. Import your patterns. Tell us when something doesn't look right. Every piece of feedback makes the extraction better for everyone.
If a row looks wrong, tell us — flag it in the tracker, or email us. That is the whole feedback loop, and it is the fastest way a stubborn pattern gets fixed for everyone else too.
You're not just using an app — you're helping solve a problem that researchers and developers have been working on for decades.
2 free extractions included