Create knitting colourwork charts and printable PDFs. Draw a colourwork chart cell by cell, choose colours, repeat a motif and export a chart with a colour legend as PDF.
You are planning stranded colourwork (for example Fair Isle or Nordic patterns) and want a clean, printable chart with stitch counts.

Buy and extract the Frigella ZIP, then open its Frigella folder. Install Node.js 20.12 or newer. In this extracted folder run: node start.mjs
Open http://127.0.0.1:8787/ in desktop Google Chrome. Keep the terminal open; Ctrl+C stops it. The same workflow can be explored in the online browser preview.
In your open local copy, follow the controls described below. The toolbar holds the drawing tools, Export PDF..., New, Open..., Save, Save as..., the Load a sample chart... list, Undo, Redo and zoom.
Choose a sample in Load a sample chart... (Nordic star band (flat), Snowflake yoke (in the round) or Chevron repeat (raport practice)), or click New. Under Chart size set Width (stitches) and Height (rows), from 1 to 200, and click Apply size.
Pick a colour in Palette (keys 1–9 and 0 select the first ten), then use Pencil (P), Line (L), Rectangle (R) or Fill (G) on the chart. Eraser (E) clears and Pick colour (I) copies a colour. Each colour has a Colour name, a Colour and a one-character Symbol that is printed in the cells.
Use Select (S) to mark an area, then Transform (Mirror across (H), Mirror down (V), Rotate 90 deg) or Repeat (Mark as repeat, Copies across (total), Copies down (total), Tile whole chart). Reading direction sets flat or in-the-round knitting and where row 1 is.
Click Export PDF... to open the export settings: Page (A4 or US Letter), Orientation, Scaling (Fit the chart on one page, or Fixed cell size that tiles over pages), colour or black and white, symbols and grid lines. Click Export PDF to download the chart.
Click Save or Save as... to write a .frigella.json chart file. Chrome opens a save dialog so you can choose the folder; browsers without that dialog download the file instead. Use Open... to load a saved chart.
Input: No file needed: the built-in sample Chevron repeat (raport practice). A saved copy to try with Open... is in examples/frigella/chevron-repeat.frigella.json.
Expected: The status reads “Loaded the "Chevron repeat" sample.” and the chart is 20 sts x 12 rows. Your browser downloads chevron-repeat.pdf. Page 1 is the chart with row and stitch numbers and page 2 is the legend (20 stitches x 12 rows, 2 colours). The saved chevron-repeat.frigella.json opens again with Open....
The save dialog was closed without saving. Click Save as... again and choose a folder.
A quarter turn needs a square area. Select a square region with Select (S) first.
Knitted stitches are usually wider than tall. Set Stitch ratio (width : height) under Stitch proportions; it changes only the drawing, never the stitch count. Print one page and check it before you knit.
Browser storage keeps only a crash-recovery draft and is not a backup. Save a .frigella.json file whenever the chart matters.
No activation key is needed for the included local features. The purchase supplies the downloadable edition, guide and examples; it does not unlock a separate Pro feature set.
Guide and examples: 30 September 2026. Examples are fictional or synthetic. Online guide · Support