Image Resizer
A free, browser-based file tool. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Drop an image here, or
Processed in your browser — never uploaded.
Runs entirely in your browser — nothing is uploaded or stored.
How to use this calculator
- Drop or choose an image.
- Set the width and height (aspect ratio locks by default), then Resize and download.
How it works
The image is redrawn at the new size on a canvas in your browser and saved as a PNG. Nothing is uploaded.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.