What is a halftone effect?

Halftone converts continuous-tone images into dot patterns. Larger dots represent dark areas, smaller dots represent light areas — simulating the printing technique used in newspapers and magazines since the 1880s. Today halftone is widely used for posters, zines, album art, screen printing and retro-inspired graphic design.

Halftone pattern styles

Circular dots are the classic halftone look — round dots that grow and shrink with image brightness. Line screen uses horizontal lines of varying thickness, popular in engraving-style prints. Diamond creates a rotated square grid for a modern geometric look. Cross hatch overlaps horizontal and vertical bars. Square grid uses rectangular blocks for a pixel-art hybrid aesthetic.

How to create a halftone image

Halftone for print and screen printing

Halftone patterns are essential for screen printing, risograph printing and letterpress. A higher dot frequency (smaller dot size) creates smoother gradients, while larger dots give a bold, graphic look. Adjusting the screen angle prevents moire patterns when printing multiple color separations.

Halftone vs dithering — what's the difference?

Both halftone and dithering reduce images to limited tones, but they work differently. Halftone uses varying dot sizes on a regular grid — larger dots for dark areas, smaller for light. Dithering uses fixed-size pixels arranged in error-diffusion or ordered patterns. Halftone is the standard for print reproduction, while dithering is more common in digital and retro pixel art. Try both and see which fits your project.

Export halftone as SVG for screen printing

Pro users can export halftone patterns as SVG vector files — perfect for screen printing, laser cutting and large-format printing. Every dot becomes a real vector shape (circle, square, diamond, line or cross) that scales to any size without quality loss. Import directly into Adobe Illustrator, Affinity Designer or Inkscape.

Try more free image effects

Frequently asked questions
What is a halftone effect?

Halftone converts continuous-tone images into dot patterns. Larger dots represent dark areas, smaller dots represent light areas — simulating the printing technique used in newspapers and magazines since the 1880s. Today halftone is widely used for posters, zines, album art, screen printing and retro-inspired graphic design.

Is this halftone generator free?

Yes. You can create halftone effects and download at 800px for free, no signup needed. Everything runs in your browser — your images are never uploaded to a server. Pro users get full resolution exports and SVG vector output for a one-time payment of €9.

What halftone pattern styles are available?

Circular dots are the classic halftone look — round dots that grow and shrink with image brightness. Line screen uses horizontal lines of varying thickness, popular in engraving-style prints. Diamond creates a rotated square grid for a modern geometric look. Cross hatch overlaps horizontal and vertical bars. Square grid uses rectangular blocks for a pixel-art hybrid aesthetic.

How do I create a halftone image?
  • Upload your image — click "Upload image" in the top bar, or drag and drop any JPG or PNG onto the canvas.
  • Choose a pattern — select from circular dots, line screen, diamond, cross hatch or square grid.
  • Fine-tune the effect — adjust dot size (2–24px), screen angle (0–180°) and contrast. Pick custom colors for dots and background.
  • Export — download as PNG (free at 800px) or upgrade to Pro for full resolution PNG and scalable SVG vector export.
Can I export halftone as SVG for screen printing?

Yes. Pro users can export halftone patterns as SVG vector files — perfect for screen printing, laser cutting and large-format printing. Every dot becomes a real vector shape (circle, square, diamond, line or cross) that scales to any size without quality loss. Import directly into Adobe Illustrator, Affinity Designer or Inkscape.

What is the best dot size for halftone?

It depends on your output. For screen printing, a dot size of 8–16px gives a bold, visible pattern. For subtle texture on digital designs, 3–6px works well. For a coarse, graphic poster look, go above 16px. The angle also matters — 45° is standard, but try 0° or 90° for a different grid feel.

How do I prevent moiré patterns in halftone?

Moiré patterns appear when the halftone grid interferes with existing patterns in your image. To reduce moiré: use a 45° screen angle (the default), increase the dot size, or apply a slight blur to your source image before converting. For multi-color separation printing, use different angles for each color channel (typically 15°, 45°, 75°, and 105°).

What is the difference between halftone and dithering?

Both halftone and dithering reduce images to limited tones, but they work differently. Halftone uses varying dot sizes on a regular grid — larger dots for dark areas, smaller for light. Dithering uses fixed-size pixels arranged in error-diffusion or ordered patterns. Halftone is the standard for print reproduction, while dithering is more common in digital and retro pixel art.

Is my image uploaded to a server?

No. Everything runs entirely in your browser using the HTML Canvas API. Your images never leave your device — there is no server processing, no data collection, and no signup required. This also means the tool works offline once the page is loaded.