How to make a photo mosaic from your own photos

A photo mosaic is a large image — a face, a pet, a landmark, a logo — made up of hundreds or thousands of smaller photos arranged to recreate the original. This guide walks through making one in about five minutes, free, and entirely in your browser, with ManyTiles.

Why pick a browser-based mosaic maker

Most photo mosaic tools (Mosaically, Easymoza, Photo Mosaica) upload your full photo album to a server. Desktop apps like AndreaMosaic give powerful results but require a Windows install and don't run on phones. ManyTiles does all the work locally in your browser:

• Private by design — photos never leave your device.
• No install, no account — open the site and start.
• Works on iPhone and Android — including HEIC photos from the iOS camera roll.
• Free to create and preview — pay once only if you want a high-resolution print-ready file.

Step 1 — Pick a source image

The source image is the picture your mosaic will resemble from a distance. The best source images have:

• A clear, single subject (a face, a pet, a landmark, a logo).
• Good contrast between subject and background.
• A simple background — busy backgrounds dilute the effect.

Step 2 — Gather your tile photos

Aim for at least 100 photos; 200–2000+ is ideal so individual tiles don't repeat visibly. A wedding album, a year of family photos, a trip, or a child's first year all work well. Variety in color and brightness gives ManyTiles more options when matching tiles to regions of the source image.

Step 3 — Choose a grid size

The grid size controls how many tiles make up the final mosaic. More tiles means more detail and a stronger resemblance to the source image, but each individual tile becomes smaller. For most prints, 1,000–4,000 tiles is a good range.

Step 4 — Preview, download, and print

ManyTiles renders the mosaic instantly. Download a watermarked PNG for free to share online, or buy the high-resolution un-watermarked PNG and send it to any print-on-demand service (Printful, Mixtiles, a local print shop). For large prints, aim for at least 150 DPI at your target size.

Tips for the best result

• More photos = less visible repetition. 500+ is a sweet spot.
• Crop your source image tight on the subject before uploading.
• If a region looks muddy, try a higher grid count or a higher-contrast source image.
• For print, generate the high-resolution version at the final aspect ratio you want.