Image Collage Maker
Combine up to 12 images into fixed 420px square, center-cropped cells with adjustable columns and background and fixed 24px gaps, then export one PNG.
Ready to use
Browser-side · no account · results stay on this page
Drop multiple images here
Up to 12 browser-readable images.
Mobile processing guidance
On mobile, start with 2-4 smaller images before building larger collages or grids.
Up to 12 images; each file should stay under 25MB.
Canvas-based image operations can fail when pixel dimensions, file count, or browser memory are too high.
If generation fails, retry with fewer images, smaller dimensions, JPG/WebP output, or lower quality.
Preview and output
Choose an image first
Output appears in the preview panel after processing.
Use Image Collage Maker to combine several images into one clean grid.
It is designed for lightweight comparison panels and publishing previews, not complex design editing.
Comparison images
Combine before/after or variant screenshots.
Docs panels
Create one image from several small steps.
Social cards
Arrange product images into a simple grid.
Before and after
Choose two images and two columns to make a 912 x 468 side-by-side PNG, including 24px outer and inner gaps.
Four-image panel
Choose four images and two columns to make a 912 x 912 PNG with four center-cropped square cells.
Crop limit
Portrait and landscape sources are center-cropped to fill each square; use Image Cropper first when the subject must stay in a specific position.
Mixing unrelated ratios
Very different image ratios may crop important details.
Too many images
Large collages become hard to read on mobile.
Skipping compression
Collage exports can be large; compress the final image before publishing.
Comparison panels
Show image variants together.
Documentation
Combine steps into one visual.
Social posts
Create simple product or progress grids.
Asset review
Group related images before sharing.
Different from Grid Maker
Collage Maker combines multiple sources into square cells. Grid Maker keeps one image intact and draws guide lines over it.
Last-row behavior
If the image count does not fill the selected number of columns, the remaining cells in the last row show the chosen background color.
Privacy and memory limits
The current implementation decodes the selected images in browser memory. It accepts at most 12 files and rejects any individual file over 25MB.
How does Image Collage Maker fit different aspect ratios?
Every source is scaled to cover a 420px square cell and center-cropped. This fills the cell but can remove content near the edges.
How large is the exported collage?
Each cell is 420px square with 24px gaps. Width depends on the selected columns, and height depends on the required number of rows.
How is this different from Image Grid Maker?
Collage Maker combines multiple images into one composite PNG. Grid Maker accepts one image and adds visible guide lines without creating separate cells.
Do the selected images leave my browser?
The current public implementation decodes and combines them with browser-side canvas APIs. Avoid sensitive files unless you have reviewed the implementation and your device requirements.
How does Image Collage Maker fit different aspect ratios?
Every source is scaled to cover a 420px square cell and center-cropped. This fills the cell but can remove content near the edges.
How large is the exported collage?
Each cell is 420px square with 24px gaps. Width depends on the selected columns, and height depends on the required number of rows.
How is this different from Image Grid Maker?
Collage Maker combines multiple images into one composite PNG. Grid Maker accepts one image and adds visible guide lines without creating separate cells.
Do the selected images leave my browser?
The current public implementation decodes and combines them with browser-side canvas APIs. Avoid sensitive files unless you have reviewed the implementation and your device requirements.
Suggested workflow
Image publishing workflow
Inspect the source, prepare the output, then compress or convert for the final destination.
Guides and examples