Plan it.Chart it.Make it.

Free knitting and crochet calculators for the numbers, editable Pixel Charts for the colourwork, and projects that keep the whole make together.

Free account includes a Pixel Chart trial. Calculators never need one.

Stittli Pixel Chart editor showing Milo's 48 by 48 tabby portrait chart with a 12-colour palette
Pixel ChartMilo's portrait, translated into an editable grid48 × 48 · 12 colours

02 Free tools

Calculate with confidence

Eight calculators, no account, and every result shows its formula and rounding.

A clearer next step

Start with the number you need.

Eight free tools, with the formula and rounding shown in every result.

Free · no account needed

Explore the toolkit8 tools
View all calculators

Before you cast on

Gauge calculator

What does my swatch measure?

Measure a swatch once, then carry a reliable stitch and row gauge into your next pattern.

Worked example22 sts over 4 in = 5.5 sts/in
Use Gauge calculatorFree · no sign-in
Made for the moment you are in.

03 Pixel Charts

From picture to a chart you can make from

Upload an image, pixelate it, edit the grid, and keep your place with work mode. Conversion happens in your browser — the picture never leaves your device.

Stittli Pixel Chart editor with active drawing tools and Milo's 48 by 48 tabby portrait chart
  1. 01

    Upload a picture

    Start with a favourite portrait, like Milo in the window light.

  2. 02

    Pixelate and edit the grid

    Refine the 12-colour palette and redraw the fur stripes until it feels right.

  3. 03

    Work from the chart

    Keep your place row by row while you make — 22 of 48 is already underway.

04 How it works

One workspace, cast-on to cast-off

  1. 01

    Calculate

    Gauge, resize, and yarn math with the formula shown.

  2. 02

    Save your project

    Keep the numbers, yarn, and notes together.

  3. 03

    Create a Pixel Chart

    Turn an image into an editable chart grid.

  4. 04

    Make from the chart

    Work mode tracks your row as you go.

05 Your workspace

Pick up exactly where you left off

Projects keep gauge, yarn, calculations, charts, and row progress together on this device — no account, nothing uploaded.

Stittli work mode showing Milo's tabby portrait chart at row 22 of 48 and 46 percent progress
Milo tabby chartA 12-colour portrait, chart, notes, and row progress in one place.Create your free workspace

06 Trust & privacy

Built to show its work

No account to calculate. Projects stay on this device unless you choose to sync them.

  • Eight free calculators
  • No account to calculate
  • Every result shows the formula
  • Private by default — stored on your device

Shown with every result

gauge = 22 sts ÷ 4 in
5.5 sts/in
cast on = 5.5 sts/in × 18 in
99 sts
The formula and its rounding, next to every answer.

07 Pricing

Free value, project value, Pixel value.

Calculators stay free without an account. Premium adds bigger charts and production exports when you need more room. Choose a Premium billing plan when you are ready.

See plans