Colorize line art
Clean outlines from a printable coloring page or digital line art get color inside the shapes.
AI auto coloring
Free AI Auto Coloring
Upload line art, a sketch, a photo of your kid's drawing or a coloring page you started. Pick a brush, add color notes if you like, and auto coloring returns a colored picture in about a minute. Your lines stay where you drew them.
- Free to try, no sign-up
- No watermark
- PNG and PDF download
Showcase
Before and after, with the options we picked for each one.
Line art, crayon brush
Line artCrayonNo color notes
Colorize line art, sketches and kids' drawings
Four kinds of pictures that work well. Each one keeps its original lines.
Colorize a sketch
A pencil sketch keeps its shading and loose strokes, and the AI adds skin, hair and clothing colors on top of them.
Color in kids' drawings
Snap a photo of the paper. You get back just the drawing, colored, without the table or shadows. The wobbly lines are still there.
Finish a coloring page
Colored halfway and ran out of time? Parts you already colored stay as they are, and the rest gets filled to match.
Choose an auto coloring brush
One drawing, five looks. Each brush changes the texture.
Flat color
Clean digital fills with soft shading.
Crayon
Waxy strokes with a little paper showing through, like a kid's crayon box.
Watercolor
Soft washes that bleed at the edges.
Colored pencil
Fine strokes that layer into shading.
Marker
Solid, even color.
How to use AI to color a drawing
Three steps. Results take about a minute.
Upload your drawing
Use a JPG, PNG or WebP up to 25 MB. Photos over 4,096 pixels on the long side are shrunk for you before upload.
Choose a brush and colors
Pick one of five brushes. In the color notes, write something like "a pink capybara, turquoise water", or leave the box empty and let the AI pick natural colors.
Download
Save it as PNG or PDF, or color it again with another brush.
What automatic coloring does well, and where it struggles
Works best with:
- Clear outlines with closed shapes, like most coloring pages and comic line art
- Pencil sketches with visible lines, even light ones
- Phone photos of paper taken from above, in even light
- Pages that are partly colored, when you want the rest done in the same style
Can go wrong with:
- Very faint or smudged pencil, where the AI can't tell a line from a shadow
- Faces in sketches, where small details can shift
- Color notes that name things the drawing doesn't have, like "purple flowers" on a page with no flowers. The AI skips that part instead of drawing new objects.
If a result isn't right, try a cleaner photo or a simpler color note. A failed picture gives its credits back to your account automatically.
Who uses auto coloring
Parents
Kids bring home black-marker pictures every week. Color in drawings like the family dog or a rocket ship, then print one for the fridge and a few for grandparents.
Teachers
Show the class a colored example of the worksheet before they start, so kids see what "done" looks like.
Artists and comic makers
Colorize a sketch to try a few color schemes before you spend hours coloring line art by hand.
Coloring book makers
Make a colored cover or a "see it colored" sample page for each design. To sell them, use a Premium or Business plan.
Auto coloring FAQ
Is AI auto coloring free?
You can try it free without signing up. After that, each picture uses credits: 2 for Basic (1K) and 4 for Standard (2K). Results never carry a watermark.
What kinds of drawings can I colorize?
Line art, coloring pages, pencil sketches, photos of kids' drawings and pages you already started coloring. Upload a JPG, PNG or WebP up to 25 MB.
Will the AI change my lines?
The AI is told to keep your lines in place, and in our tests it did. Very faint lines and tiny details are where small changes show up, so check the result before you print a big batch.
Can I tell it which colors to use?
Yes. Write color notes like "red roof, yellow sun, purple dress", up to 200 characters. Leave the box empty for automatic coloring with natural colors.
How do I colorize a drawing from paper?
Take a photo from straight above in daylight, with the whole page in frame. The AI colors the drawing and leaves out the table and shadows.
Can I go from sketch to color before I paint?
Yes. Pencil, pen and digital sketches all work. Your shading stays and color goes on top, so it's a quick way to preview colors.
Can I sell the colored pictures?
Pictures made on a Premium or Business plan can be used commercially. Other plans are for personal use. Only upload drawings you made or have the right to use.
Is this the same as colorizing old photos?
No. This tool does line art colorization for drawings. For black-and-white photos, use a photo colorizer.
Who can see my pictures?
Your uploads and results show up in your own history, and colored results never appear in our public gallery.
Give your drawing some color
Try AI auto coloring free on your next drawing. No sign-up needed for the first one.