Free Crochet Tools

Tools for Crocheters

A small collection of focused, browser-based tools. No signups, no subscriptions — just open and use.

Calculator

Amigurumi Yarn & Resizing Calculator

Work out exactly how much yarn you need and what the finished size will be when you change hook size, switch yarn weight, or scale a whole pattern up or down.

  • Linear scaling for hook/yarn changes
  • Cubic scaling for whole-pattern resizing
  • Built-in yarn weight gauge table
  • Instant PDF export
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Generator

Photo-to-Pattern Studio

Turn any photo into a pixel-perfect crochet pattern with row-by-row instructions, custom yarn kits, and corner-to-corner tutorials.

  • AI colour quantisation & stitch mapping
  • Row-by-row + C2C instructions
  • Custom yarn kit matching
  • PDF / PNG / CSV export
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