What does DPI actually change?

DPI (dots per inch) describes print density. For a 4x6 inch print at 300 DPI you need 1200x1800 pixels. Pick inches or millimeters as the unit, set 300 DPI, and the tool computes the pixels for you.

Why is my resized image blurry?

Blur usually comes from enlarging too far or exporting at low JPG quality. Stay near the original size, use PNG, or raise the quality slider.

Can I resize to exact pixel dimensions for a website?

Yes — type the exact width and height in pixels. Unlock the aspect ratio if you deliberately need a non-proportional stretch.

Does resizing strip EXIF metadata?

Yes. Re-encoding through the canvas removes EXIF data such as GPS location and camera details, which is a privacy bonus when publishing photos online.

Advanced Image Resizer & Scaler

Resize images by exact pixels, percentage or physical units with aspect-ratio lock and 72/300 DPI print presets.

Processed locally — your images never leave this device

Whether you need a 1200px hero image, a thumbnail at exactly 50%, or a 300 DPI file ready for print, the Advanced Image Resizer gives you pixel-perfect control. Type exact dimensions, tap a percentage preset, or work in inches, millimeters and centimeters with automatic DPI conversion.

The aspect-ratio lock prevents accidental distortion, and high-quality resampling keeps downscaled images crisp instead of blurry. Everything renders through the Canvas API on your device — no uploads, no watermarks, no limits.

How to use this tool

Drop in any JPG, PNG, WebP or GIF image.
Type a new width or height — the other dimension follows automatically with the lock on.
Or tap a quick-scale preset: 25%, 50%, 75%, 150% or 200%.
For print, switch units to inches/mm and pick 300 DPI; for web, keep pixels at 72 DPI.
Choose an output format and download the resized image.

Technical specifications

Input formats	JPG, PNG, WebP, GIF (first frame)
Units	Pixels, inches, millimeters, centimeters
DPI presets	72 (web), 150 (draft print), 300 (print)
Quick scale	25%, 50%, 75%, 150%, 200%
Resampling	High-quality smoothing (Canvas API)
Privacy	100% client-side — images never leave your device
Browser compatibility	Chrome, Edge, Firefox, Safari 16+ (desktop & mobile)

Frequently asked questions

Downscaling always keeps quality; upscaling beyond about 150% will soften detail. Export as PNG or high-quality JPG (90%+) and keep the aspect lock on to avoid distortion.