Stitch-perfect patterns, with copilot.
FFCopilot analyzes your crochet patterns for stitch-count errors so you can focus on creating, not recounting.
Currently optimized for amigurumi patterns. More pattern types coming soon.
Three simple steps to stitch-perfect patterns.
Upload a crochet pattern PDF and let FFCopilot do the reading.
Every row is checked for stitch-count accuracy, increases, decreases, and repeats.
Get a clear, row-by-row report highlighting any errors or ambiguities.
Built by crocheter, for crocheters. Every feature exists because I've lived the pain of finding errors after publishing.
Every row is validated against the previous one. Increases, decreases, repeats, magic rings, all checked automatically so the numbers always add up.
Upload your PDF, get your report back in under 3 seconds. No waiting, no queues. Your file is processed the instant it arrives.
Off-by-one errors, miscounted repeats, ambiguous stitch totals. FFCopilot flags issues that are easy to overlook after hours of writing.
Works with the file formats designers actually use. Upload straight from your desktop, no copy-pasting or reformatting needed.
Beyond math errors, FFCopilot spots inconsistencies in formatting and wording, like a second pair of eyes before you hit publish.
Set your own conventions: whether slip stitches count, or how turning chains are handled. FFCopilot adapts to your style. (Pro)
See FFCopilot in action: upload, analyze, and review.
We know your patterns are your livelihood. Here's how we protect them.
Your uploaded file is processed in a temporary workspace and permanently deleted the moment your results are ready. Nothing is stored on our servers.
Your pattern is never stored, never used for training, and never shared with anyone. We check the math and delete the file. That's it.
Only you see your results. We don't peek at your patterns, don't build a library from them, and don't share data with anyone, ever.
Start free, upgrade when you need more.
Pro at 50% off: April & May 2026
Lock in €5/month for your first 6 months. Renews at €10/month after that. Cancel any time.
€0
3 patterns per month
€5
€10
/monthFirst 6 months · then €10/month · billed monthly · cancel any time
FFcopilot is in active development. You may occasionally encounter parsing quirks. Report them and they get fixed fast. Early access pricing reflects that.
Get Early AccessCustom
For publishers & platforms
The Frogging Fabulous suite is growing.
Pattern editing and reformatting tools. Clean up stitch abbreviations, standardize row numbering, and export publish-ready patterns.
Design assistance tools. Generate stitch charts, visualize color changes, and prototype new patterns from scratch.