Are thumbnails cropped?

Yes. A centred cover crop creates consistent thumbnail rows. The source images themselves are never modified.

Why can a very large sheet be rejected?

The 8192px-side and 64-megapixel safeguards prevent excessive Canvas memory. Reduce columns or thumbnail width.

Which output format should I choose?

PNG preserves sharp labels without lossy compression, JPG is broadly compatible for photo-heavy sheets, and WebP often provides a smaller web-ready file.

Can I use it as an archive?

No. A contact sheet is a visual index of cropped thumbnails, not a replacement for original full-resolution assets.

No. Loading, layout and export happen locally in your browser.

Image Tools

Contact Sheet Generator

Turn up to 40 images into a labelled visual index with filenames, dimensions, file sizes and PNG, JPG or WebP export.

Free browser toolRuns in your browserNo sign-up

Add images

Up to 40 images. Reorder before export.

Columns: 4Thumbnail width: 320pxGap: 20pxBackgroundOutput

Show filename, dimensions and size

Contact sheets use centred thumbnail crops for consistent rows; they are review indexes, not archival replacements for the original files.

About the Contact Sheet Generator

Contact Sheet Generator creates a visual review index from up to 40 local images. It is useful for photography selections, product catalogs, asset reviews and sharing a compact overview without opening every source file.

Control columns, thumbnail width, spacing and background, then optionally label every thumbnail with its filename, original pixel dimensions and file size. Reorder or remove entries before generating the final sheet.

PNG, JPG and WebP exports are created locally with explicit 8192px-side and 64-megapixel safeguards. Thumbnails use centred crops for consistent rows, so the sheet complements rather than replaces original files.

Key features

Up to 40 local images
Two to eight columns
Adjustable thumbnail width and spacing
Custom background colour
Optional filename, dimensions and size labels
Reordering and removal controls
PNG, JPG and WebP export
8192px and 64MP safeguards

How to use

1Add the images that belong in the review sheet.
2Choose columns, thumbnail width, spacing, background and label visibility.
3Reorder or remove entries and inspect the centred thumbnail crops.
4Download PNG for lossless output, JPG for broad photo compatibility or WebP for compact web delivery.
5Keep the original files because the contact sheet contains review thumbnails only.

Examples

Create a product proof sheet

Input: 24 product photos, four columns and labels enabled

Output: Labelled JPG index with filename, dimensions and source size

Use the sheet for selection and refer back to originals for full-resolution inspection.

Frequently asked questions

Are thumbnails cropped?: Yes. A centred cover crop creates consistent thumbnail rows. The source images themselves are never modified.
Why can a very large sheet be rejected?: The 8192px-side and 64-megapixel safeguards prevent excessive Canvas memory. Reduce columns or thumbnail width.
Which output format should I choose?: PNG preserves sharp labels without lossy compression, JPG is broadly compatible for photo-heavy sheets, and WebP often provides a smaller web-ready file.
Can I use it as an archive?: No. A contact sheet is a visual index of cropped thumbnails, not a replacement for original full-resolution assets.
Are images uploaded?: No. Loading, layout and export happen locally in your browser.

Open a related tool to prepare your files or refine the finished result.