Image Resizer
Resize images to any dimension. Processing happens entirely in your browser.
Click to upload an image
Supports JPEG, PNG, WebP
Key Features
- Resize images to any exact pixel dimension or by a percentage of the original.
- Lock aspect ratio with one click to prevent distortion when changing width or height.
- Supports JPEG, PNG, WebP, GIF, and BMP input formats.
- Previews the resized result instantly before you download.
- Runs entirely client-side — your photos are never uploaded to a server.
- Lets you export the resized image as JPEG, PNG, or WebP.
Frequently Asked Questions
How do I resize an image without stretching it?
Enable the 'Lock aspect ratio' option before changing the width or height. The tool will automatically calculate the other dimension to keep proportions correct.
Can I upscale a small image to a larger size?
Yes, but upscaling beyond the original resolution will reduce sharpness because no new pixel data is being added. For best results, avoid enlarging images more than 2×.
Is there a maximum file size I can upload?
There is no hard server-side limit because processing happens in your browser. Very large files (over 20 MB) may be slow depending on your device's memory.
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