Image Resizer
Resize images to exact pixels, a percentage or social media sizes.
- Free, no sign-up
- Files stay on your device
- Works offline
How to use the Image Resizer
- 1
Drop one or more images into the box, or click to choose files.
- 2
Pick a mode: exact pixels, percentage, or a ready-made preset such as Instagram post or YouTube thumbnail.
- 3
Click “Resize images” and check the new dimensions and file sizes.
- 4
Download each image, or all of them at once.
Frequently asked questions
Everything you need to know about the Image Resizer.
Will resizing stretch my image?
Not with “Lock aspect ratio” on — the height follows the width automatically. Presets with a different shape crop from the center instead of stretching.
Are my images uploaded?
No. Resizing happens in your browser using the Canvas API, so your photos never leave your device.
What size is a passport photo in pixels?
The passport preset produces 413 × 531 pixels, which is 35 × 45 mm at 300 DPI — the size used in Bangladesh, the UK, the EU and many other countries.
Can I make an image bigger?
Yes, but enlarging can't add detail that isn't there, so large upscales may look soft. Shrinking always keeps images sharp.