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Color by Number FAQ & fixes

No. Color by Number is a web app. Open colorbynumber.bearwoodlabs.com in your browser on any computer.

Yes. Upload PNG or JPG images. Closed black outlines work best, but the gap-repair tools help if a few lines are broken. See getting started for how to use them.

Yes. If the drawing is already colored in, the app can pull the colors from the image and turn them into the answer key automatically.

Yes. You can use the worksheets you create in your own classroom resources and products, including ones sold on Teachers Pay Teachers (TPT).

The free demo is for building and previewing a worksheet. A license unlocks exporting to PNG, print, and PowerPoint on your device.

Exporting (PNG, print, or PowerPoint) requires a license unlocked on that device. If you’re still in demo mode, buy a license from the Color by Number product page or on Gumroad, then enter your key in the app.

I’m on a new computer and want my license back

Section titled “I’m on a new computer and want my license back”

Web apps don’t need reinstalling. Just open colorbynumber.bearwoodlabs.com on the new machine and unlock it with your license key again.

The background usually stays uncoded on purpose. In the Regions step, “Code regions touching the edge (background)” is off by default, so the white background of your artwork doesn’t turn into a colored region on the worksheet. You can turn that checkbox on if you want the background coded too, or switch to “Leave blank” mode in the Color key step to blank out any other region by hand.

How do I change the color the app picked for a region

Section titled “How do I change the color the app picked for a region”

Click that region’s row in the color key to select its color, then click the region on the canvas. It repaints immediately and the counts on both key rows update. You don’t need to redo detection or touch any sliders.

Can I make a math facts version of a worksheet

Section titled “Can I make a math facts version of a worksheet”

Yes. In the Color key step, open “Advanced: custom region codes” and give one key color more than one code, for example 5+5, 6+4, and 7+3 all pointing at the same key entry. The student solves the problem printed on the region to figure out which color to use, so any picture becomes a math facts worksheet.

Not unless you turn it on. Regions touching the edge of the image are treated as background and left uncoded by default in the Regions step. If your artwork doesn’t have a clean border and you want the surrounding area colored, turn on “Code regions touching the edge (background)” and re-detect.

Something not covered here? See contact support.