QKitBoxImage resizer
Resize to exact pixels or a percentage, keep the aspect ratio locked, export as JPG, PNG or WebP. Free, and the image never leaves your browser.
Drop an image, or click to choose
JPG, PNG, WebP. One image at a time, processed locally.
Downsizing is high quality; heavy upscaling adds blur (the tool will resize, but detail can't be invented). PNG ignores the quality setting — it's lossless.
How it works
The image is drawn onto a canvas at your target dimensions and re-encoded in the chosen format. Aspect lock recalculates the height whenever the width changes (and vice versa) from the original image's ratio, so nothing stretches. Re-encoding through a canvas also strips EXIF metadata — including GPS — which is usually desirable for public listings.
Frequently asked questions
Why did my PNG get bigger?
PNG is lossless: quality doesn't apply, and re-encoding can add overhead. For photos use JPEG or WebP; keep PNG for line art and transparency.
Can I upscale?
You can, but enlarging beyond the original size blurs — no algorithm invents detail. Keep the target at or below the original.
Is the EXIF removed?
Yes — canvas re-encoding drops all metadata, including GPS coordinates. Good for public listings.
Written and maintained by Steven Huang · Last reviewed October 29, 2026.