Image Resizer
Resize any image to exact pixel dimensions or a percentage, with an aspect-ratio lock and JPEG, PNG, or WebP export.
Processed locally in your browser — nothing is uploaded.
Image
Files are processed entirely in your browser — nothing is uploaded to any server.
About Image Resizer
Drop in an image, type a new width or height, and download the result. The aspect-ratio lock keeps proportions intact while you edit either dimension, and the 25/50/75% presets handle the common shrink-to-fit cases in one click.
The resized image can be exported as JPEG, PNG, or WebP, with a quality slider for the lossy formats. Before-and-after dimensions and file sizes are shown so you can see exactly what you are saving.
Common uses
- Shrink a camera photo to fit an upload limit
- Produce an exact-size thumbnail or avatar
- Scale screenshots down to 50% for documentation
- Convert to WebP while resizing to cut page weight
Example
Input
4032×3024 photo, width set to 1600, JPEG at 85%
Output
1600×1200 JPEG, typically a fraction of the original size
Limitations
- Resampling uses your browser's canvas scaler; upscaling cannot add real detail.
- Animated GIFs are flattened to their first frame.