Photo Collage Maker

Arrange and download your collage

1. Add 2–12 supported JPEG or PNG photos. The ordered list shows accepted photos and reports rejected files. Move a photo earlier or later, replace it or remove it.
2. Set width, height, columns, gap and outer margin. Select each photo to choose cover or contain and its horizontal and vertical position. Rows follow the photo count and column setting.
3. Choose PNG or JPEG, check the reduced preview and generate the collage. Download becomes available after the generated file passes format and dimension checks. Changing photos or settings retires the old download.

Grid cells, crops and backgrounds

Photos fill the grid in list order from left to right, then top to bottom. Every photo appears once. Empty cells at the end keep the background; the last row is not stretched.

Cover fills a cell and crops any excess. Contain retains the whole photo and can leave background bars. Horizontal and vertical position choose which part stays in a cover crop or where a contained photo sits inside its cell.

The outer margin surrounds the grid and gaps separate cells. Remaining integer pixels go to the first columns or rows, so equal cells can differ by one pixel without losing the requested output size.

Transparent PNG leaves uncovered areas transparent. Opaque PNG and JPEG use the selected background color. A checkerboard in the interface illustrates transparency and is not saved into the image.

Layout and fit examples

Five photos at 1007 by 673 pixels with three columns, a 13-pixel margin and 7-pixel gaps create two rows. Column widths are 323, 322 and 322 pixels; both row heights are 320 pixels. One trailing cell stays background.

A 1200 by 800 photo covering a 323 by 320 cell uses an 807.5 by 800 source crop. At 75% horizontal position the crop starts 294.375 source pixels from the left; the vertical axis has no excess to move.

An 800 by 400 photo contained in that cell draws at 323 by 161.5 pixels. At 25% vertical position it leaves 39.625 pixels above and 118.875 below. The full photo remains visible.

Supported files and export limits

Use static supported JPEG or PNG, up to 12 MiB and 16 million pixels per photo, with an 8192-pixel axis limit. Accepted photos together are limited to 48 MiB and 64 million pixels. GIF, WebP, APNG, HEIC, SVG and HDR inputs are outside this tool.

Color admission is restricted to unprofiled sRGB assumptions and the declared SDR sRGB or Display P3 profile subset. Unsupported or conflicting color metadata is rejected. Export targets 8-bit sRGB; wide-gamut colors can change and source profiles, Exif and DPI are not preserved.

Output axes are 64–4096 pixels, with at most 12 million pixels and a 64 MiB file limit. Browser decoding, memory or encoding can still fail inside those limits. The reduced preview uses thumbnails; export uses originals.

JPEG is lossy and always opaque. Its quality setting is a browser encoder hint, not an exact size promise. This grid tool has no freeform placement, text, stickers, remote images, filters or saved project history.

Local photos without saved projects

The tool processes selected photos in the browser and adds no photo upload, saved history, input-bearing link or photo telemetry. Clear or leave the page to release its resources. A language change on the mounted page retains your work; a new document starts empty. Existing site services and extensions are outside a universal privacy promise.