Always beautiful results
Color inside
the lines.
Just pick colors and enjoy. Line lock keeps everything perfect — no steady hands required.
Always beautiful results · No precision needed · No ads
AI Line Lock
Unlock the artist inside you — our AI handles the rest.
You don't need to be precise. You don't need to worry about picking the exact color. Just use your creativity, pick the palette you love, and enjoy the fun of coloring. We guarantee it'll be beautiful.
“No precision needed”
“Always beautiful results”
“Just pick colors & enjoy”
12 brushes. Each one different.
From watercolor washes to glitter sparkle.
Round
Clean, precise strokes
Soft
Soft gradient edges
Marker
Bold, flat coverage
Pencil
Fine detail work
Crayon
Textured, childhood feel
Watercolor
Translucent washes
Ink
Sharp, calligraphic lines
Spray
Speckled mist effect
Chalk
Dusty, matte finish
Oil
Thick, rich strokes
Glitter
Sparkle particles
Laser
Neon glow effect
90+ beautiful palettes
Curated color combinations across 9 categories. Find the perfect mood for every artwork.
Solid Palettes
Warm Sunset
10 colors
Ocean
10 colors
Forest
10 colors
Pastel
10 colors
Neon
10 colors
Beach
5 colors
Tropical
5 colors
Aurora
5 colors
Cherry Blossom
10 colors
Gradient Palettes
Golden Hour
Gradient
Northern Lights
Gradient
Rose Petal
Gradient
Deep Ocean
Gradient
Spring Meadow
Gradient
Cotton Candy
Gradient
Plus a custom color picker to create your own combinations.
Watch your art come to life
Every stroke is recorded. Export a timelapse video to share or keep.
Three ways to start
Pick a template, upload your own, or continue a saved piece.
Browse & pick
Browse 480+ pages across 16 categories. Find something you love and start coloring.
Upload your own
Bring any image — a coloring page, a drawing, a sketch. Line Lock works on it instantly.
Continue from collection
Every artwork saves automatically. Come back anytime and pick up where you left off.
Your browser is enough.
No app to download. No software to install. Open the link and start coloring on any device.
Desktop
Full toolkit, keyboard shortcuts
Tablet
Touch-optimized, pinch to zoom
Phone
Color on the go, landscape mode
Chromebook
Perfect for classrooms
People love coloring.
Real reactions from early testers.
“I haven't colored since I was a kid. This brought it all back. Pure joy.”
Sarah M.
Parent of two
“The line lock is magic. My 6-year-old's coloring actually looks amazing now.”
David K.
Father & designer
“I use this during work breaks. Way better than doom-scrolling.”
Mia L.
Software engineer
480+
Templates
12
Brushes
16
Categories
90+
Palettes