Resize imageby percentage
Want to scale an image up or down by a percentage instead of typing exact pixels? Drag the slider to set a percentage — 50% halves it, 200% doubles it — and every image is resized instantly in your browser.
Resize image by percentage
Drop images here or click to select
Pre-set to by percentage — resized in your browser
JPG • PNG • WebP — by percentageResize image by percentage — how it works
Resizing by percentage is the fastest way to scale an image proportionally when you do not care about an exact pixel dimension. Setting 50% halves both width and height; 200% doubles them. Because the aspect ratio is always preserved, the image never stretches or distorts.
This is ideal for making a quick thumbnail (try 25%), a smaller web preview, or doubling a small graphic. For exact dimensions — a profile picture, a banner, a print — switch to the pixel mode on the main resizer. Percentage mode is best when you want "roughly half" or "about twice" rather than a precise number.
Percentage scaling keeps the aspect ratio locked automatically, so the image always looks proportional. Downscaling preserves quality; upscaling beyond about 200% starts to look soft.
At a glance
| Property | Detail |
|---|---|
| Target | by percentage |
| Method | High-quality canvas resampling |
| Aspect ratio | Locked by default |
| Typical use | Quick proportional scaling, thumbnails, previews |
| Privacy | 100% in-browser, no upload |
Frequently asked questions
How do I resize an image by percentage?
Drop your image into the tool above and drag the percentage slider. 50% halves the dimensions, 200% doubles them. The aspect ratio stays locked, so the image never distorts.
What percentage should I use to halve an image?
Use 50%. That halves both the width and the height, reducing the total pixel count to a quarter of the original.
Does resizing by percentage keep quality?
Downscaling (under 100%) keeps the image sharp. Upscaling (over 100%) adds softness — keep increases under about 200% for acceptable results. Export as PNG or high-quality JPG.
Is the percentage resizer free and private?
Yes. Everything runs entirely in your browser, so your image is never uploaded. It is free with no sign-up, no watermark and no limits.