LINETIFY

Precision photo-to-line-art conversion for artists & illustrators — runs entirely in your browser

📚 You are editing a page of your coloring book — use the styles, sliders, pen and eraser, then save it back.

Free Limit Reached

You've used all your free conversions for this period. Upgrade to Linetify PRO for unlimited conversions and print-ready vector/PDF export.

Preview — Drag To Compare

⬆ Upload a photo to start
Your line art appears here — then shape it with the sliders below
Original Line Art Awaiting file upload...
⇔
Processing…
Pre-processing
Line Control
Manual Retouch

Closes broken outlines so colors stay inside. Bigger Gap Size = bigger holes closed.

Ready. Upload an image to begin.

Frequently asked questions

Is Linetify free?
Yes — every new device gets 100 free tokens (about 20–25 conversions, since a normal photo costs 4 tokens and a large/heavy photo costs 5). SVG and PDF export are included free while you still have tokens left. PRO removes the limit entirely for unlimited conversions and exports.
Are my photos uploaded to your servers?
No. The whole conversion happens inside your own browser, on your own device — your photos are never sent to us or stored anywhere.
How do the free tokens work?
You get 100 tokens that renew 30 days after your first conversion. A normal photo costs 4 tokens, a large file costs 5 — so roughly 20–25 free conversions per period.
What does PRO give me?
Unlimited conversions, unlimited SVG and PDF export and the Coloring Book maker, on up to 3 devices (computer, tablet, phone), with no cap — $30/month. PRO lasts 30 days from your purchase and renews by itself every 30 days; if you cancel, you keep PRO until the end of the days you paid. See plans →
Where do I find my license key?
It's in the Gumroad receipt email you got after buying, and in your Gumroad Library. Paste it into Activate key at the top of Linetify.
Can I use PRO on more than one device?
Yes — one license key works on up to 3 devices (for example your computer, tablet and phone). Just activate the same key on each one.
What happens when my subscription ends?
PRO stops, and your free-token balance picks up exactly where it was frozen (if you're still within the same 30-day window) — nothing is lost or reset early.
What image styles does Linetify support?
Portrait, Landscape, Fashion sketch, Coloring book page, ✏️ Pencil Sketch (soft graphite drawing), 🔢 Dot-to-Dot and ✍️ Trace pages for kids, and more — each with adjustable line thickness and sensitivity. The 🌿 Auto-Tune for Nature button picks good settings automatically for trees, flowers and gardens.
How do I make a whole coloring book?
Open the 📚 Coloring Book tab, press ＋ Add pictures and pick several pictures at once. Choose a style (for example Clean Sketch or ✏️ Pencil Sketch) for every page, or a different one per page, and press ✏️ Edit this page to fine-tune any page with the sliders, pen and eraser. Then download each page as PNG, or the whole book as one print-ready PDF (sized for Amazon KDP, Lulu, IngramSpark or a home printer, with optional cover page, page numbers and blank backs).
Can I sell the coloring books I make?
Yes — as long as you own the pictures you use (your own photos or drawings) or have the right to use them commercially. What you create from your own pictures is yours.
How many pages can a coloring book have?
As many as you like. Each picture you add costs tokens like one conversion (unlimited with PRO). For a smooth experience on phones, keep one book under about 60 pages and make a second book for more.
Should I choose US Letter or A4 for my book?
US Letter (8.5 × 11 in) is the standard in the USA and Canada and for most print-on-demand coloring books; A4 is the standard in Europe and most other countries. Every page is centered with a margin on both sizes.
Can I publish my book on Amazon KDP, Lulu or IngramSpark?
Yes. In Print settings, pick the platform and the book size: Linetify makes a 300 DPI PDF at exactly that size, with the bleed (when the picture fills the page), safe margins and gutter the platform asks for. On the page previews, the solid red line shows where the paper is cut and the dashed red line shows the safe margin; the red lines are never printed. Amazon KDP needs at least 24 pages.
Can I make dot-to-dot or tracing pages for kids?
Yes. 🔢 Dot-to-Dot turns the outline of a picture into numbered dots for children to join, and ✍️ Trace turns every line into dots for learning to draw. The Dots slider sets how many dots. They work best with simple pictures such as cartoons, animals and objects.
Can I print the coloring-book pages?
Yes — PDF export can add an automatic blank page after each sheet, so marker or crayon ink doesn't bleed through onto the next page when printed double-sided.
Can I export as vector (SVG)?
Yes — SVG export traces your line art into clean vector paths, so it scales to any size without pixelation. It's free to use while you have tokens left, or unlimited with PRO.
How do I cancel my subscription?
Anytime, from your Gumroad account (Library → your Linetify membership → Manage membership). PRO stays active until the end of the period you already paid for.