Screen printing
Films with no grey: every dot either prints or it does not.
Free tool
Halftone generator
online
Turn any photo into halftone dots, like a newspaper, a poster or a screen printing film. Set the dot shape, size and angle, then download a PNG.
Original
PNG size
Need 12-ink separation, an underbase or films? Open the full editor
How to use it
Three steps
- 1
Upload an image
JPG, PNG or WebP. Drag a file in, paste from the clipboard or start from an example.
- 2
Adjust
The result updates instantly. Drag the divider to compare with the original.
- 3
Download a PNG
Up to 4000 px on the long side, on a transparent or coloured background. No watermark.
Where it helps
For print, engraving
and design
Laser engraving
Photos for engraving wood, leather and metal: a laser burns dots, not shades.
Riso and zines
Halftones for spot-colour printing and self-publishing.
Posters and social
A retro print look for covers, posters and merch.
FAQ
Frequently asked questions
01What is a halftone?
A way to print shades with a single ink: dark areas get big dots, light areas small ones. Newspapers, posters and screen printing films all work this way.
02Which angle should I use?
For one ink, 22.5° or 45° is usual: at those angles the dots are least visible and less likely to moiré with the mesh.
03How many dots across?
More dots means a smaller dot and more detail. 60–100 is plenty for a poster; fine print and engraving use more. For screen printing the dot has to hold on the mesh, so very fine screens are not what you want.
04Are my photos uploaded anywhere?
No. Everything runs in your browser; the file never leaves your computer.
05Is it free?
Yes. The tool is free, with no sign-up and no watermark.
Need more than one effect?
The full editor adds separation up to 12 inks, underbase, trapping, vintage, films and SVG.