Resize hundreds of images at once

Drop a whole folder, set one rule, download everything as a ZIP. Your phone's photo app resizes one picture at a time — this does three hundred.

Files never leave your browser

Drop images here or click to choose — up to 300 files at once

Which mode should you use

Longest side is the safest choice for a mixed folder. Portrait and landscape photos both end up within the same bounding box, and nothing is stretched or cropped.

Width or height fixes one dimension and lets the other follow the original proportions. Use this when a layout needs a consistent column width.

Percentage scales everything by the same factor, so relative differences between your photos are preserved.

Exact size forces both dimensions and will distort the picture if the aspect ratio does not match. It is here because some upload forms demand precise pixel values, but reach for it last.

About quality when shrinking

Reducing a 4000-pixel photo straight down to 400 pixels in one step throws away most of the detail and leaves jagged edges. This tool steps the image down by halves first and only then makes the final adjustment, which keeps edges noticeably cleaner. You do not need to configure anything — it happens automatically.

Enlarging works, but no resizer invents detail that was not captured. A small image scaled up will look soft.

Common questions

How many files can I add? Three hundred per batch. The real limit is your device's memory — older phones will struggle with hundreds of large photos, so work in smaller batches there.

Are my photos rotated correctly? Yes. Orientation stored by phone cameras is read and applied, so portrait shots stay portrait.

Why does the page pause between files? It deliberately yields between images so the browser stays responsive and the tab does not freeze on slower devices.

Does this need an internet connection? Only the first time. Your first visit stores the whole site on your device, so resizing a folder of photos afterwards works with no signal at all — on a train, on a plane, or on hotel wifi that has given up. Nothing is uploaded either way; the connection is only ever used to fetch the page itself.

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