Resize Image by Percentage – 5% to 200%, Free

Drop an image here or browse

JPG, PNG, WebP, GIF or BMP · paste with Ctrl+V

Pre-set for you: the resizer is in By percentage mode at 50%. Add an image, adjust the slider if you like, and press Resize image. To type exact pixels, open the full Image Resizer.

When percentage resizing is easier

Pixel sizes are perfect when a website demands an exact width. Often, though, you simply want a picture “half the size” for an email, a document or a chat, or you have photos of different sizes and want each one reduced by the same amount. Percentage scaling does exactly that: width and height shrink or grow together, so nothing is stretched.

How to resize an image by percentage

Drop an image in the box above, or paste it with Ctrl+V.
The By percentage mode is already selected at 50%. Drag the slider anywhere from 5% to 200%.
Choose an output format if you want to change it, then press Resize image.
The result shows the new pixel size and file size. Download it.

Percentage quick reference

Scale	4000 × 3000 photo becomes	Typical use
75%	3000 × 2250 px	Slightly lighter files for archives
50%	2000 × 1500 px	Email attachments, documents
25%	1000 × 750 px	Web pages, chat, forms
10%	400 × 300 px	Thumbnails, previews
200%	8000 × 6000 px	Small icons or pixel art only

Halving the width and height leaves a quarter of the pixels, so a 50% resize usually cuts the file size by around two-thirds or more.

Tips

Enlarging photos above 100% makes them softer; it cannot add detail. For logos, recreate them at the bigger size instead.
Large reductions are done in several smaller steps, which keeps edges and text crisp.
For an exact file size rather than a scale, use a target such as 100KB.