How to Resize an Image Online
Resizing an image changes its pixel dimensions, such as width and height. It can make an image easier to upload, fit a specific layout, or reduce its dimensions for sharing.
Why resize an image?
- Meet website upload requirements
- Prepare images for social media
- Reduce oversized dimensions
- Fit an image into a document or design
Width and height
An image's dimensions are usually expressed as width × height in pixels. Keeping the same aspect ratio helps prevent people, products, or objects from looking stretched.
How to resize an image in your browser
Open the free Image Resizer, select an image, enter the desired dimensions, and create the resized file. The processing is performed in the browser for this tool.
Resizing versus compressing
Resizing changes pixel dimensions. Compression changes how image data is encoded and can reduce file size. You may use both when preparing an image for the web.
Quality tip
Making an image much larger than its original dimensions cannot recreate missing detail. For good results, resize downward when possible and start with the highest-quality original available.
FAQ
Does resizing always reduce file size?
Not necessarily. File size also depends on format, quality, metadata, and image content.