StitchProof founding preview

Check the math. Compare the revision. Keep the report.

StitchProof reviews supported amigurumi round math in your browser, tracks corrections, and compares pattern versions without uploading your pattern.

No accountBrowser-local processingDeterministic checks only

Private by design: pattern text, titles, names, notes, corrections, and stitch values stay in this browser. FiberTools does not upload them or include them in analytics. Nothing is saved unless you explicitly choose browser-local saving or download a backup.

Record a correction

Corrections override parsed values for recalculation while preserving the original pasted line and original parsed values.

Correction history

No corrections recorded. History remains in memory unless you explicitly save or export the project.

What notation should StitchProof support next?

Optional: send one broad category only. Do not paste an instruction or any pattern text. Analytics consent and privacy controls still apply.

Local project controls

Saving is off by default. A saved project exists only in this browser on this device. Clearing browser data removes it, and other devices cannot access it.

Changes since page load or the last local save or restore: none detected.

Enable browser-local saving on this device

JSON backup files contain the full pattern, metadata, notes, and corrections. Keep them somewhere private. Restore reads the selected file in this browser; it is not uploaded.

Designer pattern