Getting started with Color by Number

Color by Number runs entirely in your browser. There’s nothing to install. Open colorbynumber.bearwoodlabs.com and you can start building a worksheet right away in demo mode.

Create your first worksheet

1. Go to colorbynumber.bearwoodlabs.com.
2. Upload a PNG or JPG of your line art. The app auto-detects the colorable regions. If you upload artwork that’s already colored in, it detects the colors and builds a matching color key automatically.
3. Choose numbers or letters as your worksheet codes, then edit the colors, code labels, and color names in the key as needed.
4. Click any region on the artwork to repaint it, blank it out, or move its label.
5. Preview the student worksheet and the answer key in the browser.
6. Export the worksheet PNG, the answer key PNG, print both pages, or export an editable PowerPoint file.

Note

The free demo lets you build and preview a worksheet. Exporting to PNG, print, or PowerPoint is unlocked once you buy a license and enter the key in the app on that device.

Getting good region detection

Closed black outlines work best for line art, since the app uses the outlines to find each region’s edges. If a few lines are broken and colors are leaking between shapes, use the gap-repair option to tighten up the artwork before exporting.

Using already-colored artwork

If you upload artwork that’s already colored, Color by Number detects the colors in the image and builds a matching color key from them. You don’t need to build the key by hand.

Editing regions and the key

Click any region to repaint it, blank it out, or move its label. In the key, you can change colors, code labels, and color names to match what you want on the worksheet.

Exporting your worksheet

Export a student worksheet PNG, an answer key PNG, print both pages through your browser’s print dialog, or export a PowerPoint file with the worksheet and answer key on separate slides. Use the PowerPoint export if you want to add a cover page or your own styling.