Lock the original aspect ratio or set width and height independently up to 12,000 pixels.
ASYNC UTILITIES / IMG / 13
Image Resizer
Resize raster images to precise dimensions while preserving aspect ratio.
Local processing
Your files stay in this browser. Nothing is uploaded to Async.
WORKSPACE / READY
Preview the output dimensions and export a high-quality PNG, JPEG, or WebP.
INPUT / DIMENSIONS
Set the output size
Aspect lock keeps the source proportions while you adjust either dimension.
OUTPUT / PREVIEW
Result
Download becomes available only after a successful render.
Your resized image will appear here.
HOW IT WORKS
Three steps. No account.
- 01
Add a raster image
- 02
Set width and height
- 03
Resize and download
DETAILS / LIMITS / PRIVACY
Built for the real edge cases.
Export a verified PNG, JPEG, or WebP result only after a successful render.
Inputs are limited to 20 MB and 40 megapixels to protect browser memory.
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