Image Resizer

How to use Image Resizer

1. Choose an image.
2. Enter a new width or height, or press 25%, 50% or 75%.
3. Pick a format and quality, then press Resize and download.

Why resize images

Modern phones take photos of 4000 pixels or more across, far larger than any web page, email or form needs. Oversized images waste bandwidth, slow pages and often exceed upload limits. Resizing to the size you actually need is the single most effective way to shrink an image.

Common target sizes

• Full-width website banner: 1600–2000 px wide.
• Blog post image: 1200 px wide.
• Social media post: 1080 × 1080 px (square) or 1080 × 1350 px (portrait).
• Profile photo: 400–800 px.
• Email: 600–800 px wide.

Avoiding distortion

Keep “Keep aspect ratio” ticked unless you deliberately want to stretch. If you need an exact size with a different ratio, resize to the larger needed dimension first and crop the rest in an editor. Resizing a JPG repeatedly loses quality each save, so always work from your original file.

Resizing and image quality

Scaling an image down discards pixels, and the browser uses high-quality smoothing so edges stay clean. Scaling up works the other way round: the software has to invent pixels, so the result looks blurry however good the algorithm is. If you need a larger version of a small image, find the original or a higher-resolution source instead.

For crisp results on high-density phone and laptop screens, many websites serve images at twice the displayed size. A picture shown 600 pixels wide is therefore best exported at about 1200 pixels. After resizing, run the file through the Image Compressor to reduce the size further.

Why use this image resizer tool

• Keeps proportions. Lock the aspect ratio so photos are not stretched.
• Percentage presets. Shrink to 25%, 50% or 75% in one click.
• Format choice. Output JPG, PNG or WebP.
• Private. Processed in your browser.

Frequently asked questions

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