Free Image Resizer Online
Resize JPG, PNG, and WebP images to exact dimensions or by percentage. No signup required. Keep aspect ratio locked and download instantly.
How to Resize an Image Online
- Upload a JPG, PNG, or WebP image. The tool reads its original dimensions instantly.
- Enter a new width or height in pixels, or use the 25% / 50% / 75% quick buttons to scale down proportionally.
- Keep Lock aspect ratio checked to avoid stretching — changing one dimension updates the other automatically. Uncheck it only if you need an exact, non-proportional size.
- Pick an output format (or keep the original), then click resize to download.
Frequently Asked Questions
What's the difference between resizing and compressing?
Resizing changes the pixel dimensions of the image (e.g. 4000px wide down to 1000px). Compressing keeps the dimensions but reduces file size by encoding more efficiently. To shrink both, resize here and then run the file through our Image Compressor.
Will resizing make my image blurry?
Scaling down stays sharp, and we use high-quality smoothing to keep it clean. Scaling an image far above its original size will look soft, since there's no extra detail to add.
Is there a file size or resolution limit?
No artificial limit — since resizing happens in your browser, you're only bound by your own device's memory.
Exact Control
Set precise pixel dimensions or scale by percentage — your choice.
100% Private
All resizing happens in your browser. Your images never leave your device.
Aspect-Safe
Lock the aspect ratio to resize without stretching or distortion.