Resize images
Scale images to exactly the pixel size you need – keeping the aspect ratio or not.
or drop them here
Your images never leave your device
How it works
- Select images or drop them here.
- Set the new size in pixels, percent or with a preset.
- Click “Resize” and download.
Frequently asked questions
Will my image get stretched?
No, as long as “Keep aspect ratio” is on. The other side is calculated automatically.
Can I make an image bigger?
Yes, but no new detail is created – strongly enlarged images look softer.
Are my images uploaded?
No. HowDoIImage runs entirely in your browser. Your images are not sent to any server and stay on your device – ideal for private photos too.
Is “Resize image” free?
Yes, completely free – no sign-up, no watermark and no limit on the number of images.
Does it work on my phone?
Yes. The tool works in any modern browser on iPhone, iPad, Android, Windows, Mac and Linux – no app needed.
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