Mosaic Effect

Turn a photo into a real mosaic: square tiles, hexagons, triangles or stained glass, set in grout of any width and color.

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3D tiles
Mosaic Effect result
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Turn a Photo into a Mosaic Online

This mosaic effect (a mosaic filter for any image) rebuilds your picture out of small tiles, the way a real mosaic is laid: every tile takes the average color of the part of the photo it covers, and the tiles sit in grout. Pick a shape - Square for classic tesserae, Hexagon, Triangle, or Glass for irregular stained glass cells set in dark lead - then set the Tile size and the Grout width. Small tiles keep faces and outlines readable; big ones turn a landscape into a few bold patches of color. It is a quick way to preview a wall or table mosaic before you cut real glass or tile, to make a craft pattern, or just to give a photo a hand-made look.

Grout Color and the 3D Tile Look

Grout is what makes a mosaic look like a mosaic rather than a blurry picture. The Grout slider sets the joint as a share of the tile, from none at all to wide joints, and Grout color picks any shade: light off-white like bathroom tile, charcoal, or a bright color for a poster. Choosing Glass switches the joints to dark lead on its own until you pick a color yourself. The 3D tiles switch gives each piece a soft light edge on the top left and a shadow on the bottom right, so the tiles read as raised pieces; turn it off for flat, graphic color.

Mosaic, Pixelate or 8-Bit?

If you want plain square blocks with no joints, or you only need to hide a face or a number plate, use Pixelate Image instead - it can mosaic just the part you box in. For chunky pixels in a retro console palette, the 8-Bit Image Converter is the tool. This page is for the tile look: shapes, grout and edges.

Formats and Download

The mosaic is drawn again at the full resolution of your photo when you download, so the tiles stay crisp on a large print. Save it as PNG, JPG or WebP; a JPG or WebP you upload comes back in the same format by default. You can also copy the result to the clipboard, or share it straight from your phone.

Private by Design

Family photos, portraits of your kids, the picture you are planning to turn into a kitchen splashback - none of it leaves your device. The tiles are worked out and drawn by your browser, nothing is uploaded, and nothing is kept once you close the page.

Frequently Asked Questions About the Mosaic Effect

How do I turn a photo into a mosaic?

Open the photo, pick a tile shape, then move the Tile size slider until the picture is still recognisable at the tile count you want. Set the Grout width and color, and press Download.

What is the difference between a mosaic and a pixelated image?

A pixelated image is made of square blocks that touch each other. A mosaic is made of separate tiles with grout between them, and the tiles do not have to be square: here they can be hexagons, triangles or irregular stained glass pieces.

Can I use the result as a pattern for a real mosaic?

Yes. Each tile is one flat color, so with the 3D tiles switch off the picture works as a color map: count the tiles in a row and match each color to your glass or ceramic pieces. Bigger tiles mean fewer pieces to cut.

Does it make a photo mosaic out of many small pictures?

No. Each tile here is filled with one color taken from your photo. A photo mosaic built from hundreds of other pictures is a different tool.

Is my image uploaded to a server?

No. The photo is read and turned into tiles inside your browser, so a private picture never travels anywhere.