Browser-local utility · Pilot support

Resize image dimensions

Resize one raster image to user-specified dimensions.

Your image bytes stay in this browser. There is no upload or server fallback.

1. Choose one image

Choose one JPEG, PNG, or WebP image

Exactly one static image, up to 25 MiB and 64 MP. GIF, AVIF, HEIC, TIFF, BMP, SVG, APNG, and animated WebP are rejected.

2. Set dimensions

Width Optional · 1–12000 pxHeight Optional · 1–12000 px

Keep aspect ratio

With both axes, aspect lock treats them as a contain box—never crop or padding. With one axis, the other is derived from the upright source.

Prevent upscaling

Off by default, so requested dimensions may enlarge the image.

Output format

3. Result

IDLE — Choose one image to begin.

How this resize works

EXIF orientation is applied before sizing. Output is normalized upright in sRGB, and EXIF, IPTC, XMP, ICC, and orientation metadata are stripped by re-encoding.

PNG and WebP preserve transparency. An explicit background is required when a transparent source is converted to JPEG. The selected encoder is verified; there is no silent format fallback.