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Line art to color

AI Colorizer for Coloring Pages

Upload a coloring page or a line drawing and pick markers, crayons, pencils or watercolor. AI fills in the color and your black lines stay exactly as they were.

Your coloring page
Look
Bright, even fills
Paper
Uses 1 of your 3 free pages · 1 without an account
Example page colored by AI with markers
Example line art before coloring
Example

Drag the slider to compare. Upload a page to color your own.

AI Colorizer

Try it with a library page

Pages from our free library. Pick one to load it into the tool above, or upload your own.

Baby dinosaur picnic
Baby unicorn
Astronaut on the moon
Dolphins over the waves

Color a page with AI in three steps

  1. 1

    Upload a page

    A coloring page, a library page or your own line drawing. Clean black lines on white paper work best.

  2. 2

    Pick a look

    Markers, crayons, colored pencils or watercolor. Add a note like “a pink sky” if you want certain colors.

  3. 3

    Download or print

    Get the colored page as a PDF or PNG in A4 or US Letter. Use it as a guide, a cover or a gift.

What you get

Your lines

The outlines never move

AI only adds the color. We lay your original black lines back on top, so every outline on the colored page is the one you uploaded.

Original linesNo new shapes
Four looks

Markers, crayons, pencils or watercolor

Each look has its own strokes: flat marker fills, waxy crayon texture, soft pencil shading or watercolor washes. Tell AI which colors to use, or leave it to AI.

MarkersCrayonsColored pencilsWatercolor
Color guides

Show kids one way to color it

Print the colored page next to the line art as a guide, or use it for a book cover, a classroom display or a shop listing.

GuidesCoversGifts

AI Colorizer FAQ

Each colored page is made by AI, so it uses 1 of your free pages: 1 without an account, 3 in total with a free account. On a paid plan it uses 1 credit and has no watermark. A page that fails doesn’t count.

No. AI adds the color, then we put your original black lines back on top. Colors can still spill over a line in small spots. Make it again for a new version.

A JPG, PNG or WebP of black lines on white paper: a page from our library, a page you made here or your own drawing. Photos of real scenes don’t work well. Turn them into line art first with Photo to Coloring Page.

Yes. Write a short note, up to 200 characters, like “a purple dinosaur and a sunny yellow sky”. Leave it empty and AI picks cheerful colors.

It is used only to color your page, never appears in the gallery and is deleted from our servers within 24 hours. The colored page stays in My pages until you delete it.

Yes. Open any line art in Color Online and fill each shape yourself. The AI Colorizer is for when you want a finished, colored page.