Image Resizer Online
Resize a JPG, PNG or WEBP image by exact pixels or by percentage. Keep the aspect ratio, change the format and reduce the file size.
How to resize an image
- Choose an image or drag it into the box – its original size is shown.
- Enter a new width and/or height in pixels, or choose a percentage.
- Choose the output format and quality, then click “Resize image” and download it.
Features
- High-quality resampling. Uses the Lanczos filter for sharp, clean results when shrinking photos.
- Keep the proportions. With “Keep aspect ratio” the image fits inside the size you enter without stretching.
- Privacy friendly. Hidden photo information such as GPS location is removed from the resized image.
- Change format. Save as JPG, PNG or WEBP – WEBP files are usually the smallest.
Choosing the right size
For websites and blogs, 1200–1600 pixels wide is usually enough. For email attachments and messaging, 1024 pixels wide keeps files small. Profile pictures are commonly 400 × 400 pixels.
If you enter both width and height with “Keep aspect ratio” switched on, the image is scaled to fit inside that box. Switch it off to stretch the image to the exact size.
Good to know
- Converting a transparent PNG or WEBP to JPG fills the transparent areas with white.
- Animated GIF, PNG and WEBP images are resized using the first frame only.
- Enlarging an image cannot add detail – it will look softer.
Frequently asked questions
How do I resize an image without losing quality?
Reducing the size always removes pixels, but the Lanczos filter keeps the result sharp. Choose quality 85–95 for JPG or WEBP, or PNG for lossless output.
Can I make the file size smaller?
Yes. Reduce the dimensions, choose quality 70–85, or save as WEBP for the smallest files.
Does it keep the aspect ratio?
Yes, by default. You can switch “Keep aspect ratio” off to set an exact width and height.
What is the largest image I can resize?
Images up to the megapixel and file-size limits shown on the page. The output can be up to 10,000 pixels on each side.
Is the photo's location information removed?
Yes. EXIF metadata such as GPS location and camera details is not copied into the resized image. The colour profile is kept.
Guides and tips
- How to Resize an Image Without Losing QualityWhat really happens to quality when you make an image smaller or larger, which format to save in, and the settings that keep photos sharp.