Halftone pattern: build a seamless repeat

The generator creates a geometric tile from a blank canvas. Every mark follows the selected grid and uses the same size, shape, and color. The result works as a background, texture, color screen, poster accent, or repeating surface. It does not read the tones of a photograph, so it will not automatically turn highlights into small dots and shadows into large dots.

That distinction separates this page from the homepage photo generator. Use this halftone pattern tool for a uniform repeat. Use the photo generator when an uploaded image must remain recognizable through changing dot coverage. Use the overlay collection when you want a ready-made transparent texture placed over artwork. The visible task, rather than the file format, determines the right page.

Tile size controls the pixel dimensions of the PNG and the SVG viewBox. Choose 256 pixels for a compact raster tile, 512 for the balanced default, or 1024 when you need a larger raster source. SVG geometry remains scalable, but the chosen viewBox still defines its coordinate system and the spacing values shown by the tool.

Grid density controls how many columns and rows fit inside the square tile. Spacing equals tile size divided by columns. The default 512-pixel tile with 16 columns produces 32-pixel center spacing and 256 marks before edge copies. Changing to 32 columns produces 16-pixel spacing and 1,024 marks. The live facts below the controls report those values directly, so the interface and the exported geometry use the same calculation.

Dot size is expressed as a percentage of center spacing. At the default 40 percent, a 32-pixel cell receives a 12.8-pixel circle. Increasing the percentage fills more of each cell and makes the surface appear darker; decreasing it leaves more background visible. Because the percentage is tied to spacing, changing grid density also changes the mark size in pixels.

The reported coverage is geometric area before raster anti-aliasing. For circles it is the circle area divided by the square cell area. Squares and diamonds use the square area. The number is useful for comparing settings inside this tool, but it is not a measured ink result, a physical screen frequency, or a promise about commercial printing.

Grid aligns marks in straight rows and columns. It feels orderly and makes square or diamond shapes especially obvious. Staggered shifts every other row by half a cell, which creates a less rigid rhythm and resembles common dot arrangements. The allowed column counts are even, so the alternating row pattern returns to the same phase at the top and bottom of the tile.

Circle produces the familiar dotted screen. Square has a harder graphic edge and can suit pixel-inspired work. Diamond rotates the square by 45 degrees for an angular texture. Shape changes the covered area at the same percentage: a square or diamond fills more of its cell than a circle with the same width. Compare the live coverage figure and the repeated preview instead of assuming equal percentages will look equally dark.

Choose a transparent background when the halftone pattern will sit over a photo, color block, or illustration. The checkerboard is only a preview of transparency and is not part of the export. Choose white for a ready-to-place light background, or Custom to pick another solid color. The dot color and background remain separate in the generated SVG.

Check contrast at the final display size. A pale mark can disappear on a light background, while a dense dark pattern can compete with labels and small type. Keep the pattern on a separate layer in your design file when possible. That makes it easier to crop, recolor, mask, or remove without changing the original artwork.

The left preview shows one exported tile. Marks near a horizontal edge are copied to the opposite edge when their geometry crosses the boundary. The adjacent repeat preview places the same design in a repeated field, making an edge mismatch easier to spot. Change layout, shape, density, and size while watching both views.

A seamless tile means identical copies can meet at their edges without a visible break in the geometry. It does not mean every application will display the pattern without scaling artifacts. Fractional resizing and browser zoom can introduce temporary bands. Test the exported file at 100 percent and at the exact size used in the finished layout.

Download PNG for quick placement in raster editors, slide tools, and web compositions. The file uses the selected 256, 512, or 1024 pixel dimensions and preserves transparency when selected. Avoid enlarging a PNG far beyond its export size because added pixels do not create new edge detail.

Download SVG when you want to scale the tile or edit individual geometry in a vector editor. The SVG contains the chosen background when one is selected and the generated marks as vector shapes. Import support differs between applications, so open the saved file and confirm colors, transparency, and repeat behavior before committing a final design.

This browser tool is for decorative artwork and visual exploration. It does not choose a physical line screen, compensate for dot gain, separate process colors, set press angles, or perform print preflight. For commercial printing, use the printer’s required color space, resolution, trapping, and screen settings. Treat the downloaded pattern as source artwork that may need production preparation.

For screens, consider performance as well as appearance. A dense SVG contains many shapes, and a large repeated raster can increase file weight. Use the simplest grid that gives the intended look, crop patterns to the needed area, and export the final composition at an appropriate size. The visible facts in the tool make those choices measurable rather than relying on names such as fine or bold.