Image resizer
Change an image’s dimensions while keeping the ratio.
- Instant
- Free
- Private (processed locally)
- No sign-up
Processed locally: your image never leaves your device.
Resize with no software and no upload
Need an image at a precise size for a website, a social network or an email? This tool adjusts your image’s dimensions and lets you download it, with nothing to install and without ever sending the file online.
How to use it
-
Import your image
Drag and drop a file or click to select it.
-
Set the size
Enter width and/or height; the proportions are kept.
-
Download
Get the resized image in one click.
Common dimensions
| Use | Dimensions |
|---|---|
| Profile picture | 400 × 400 px |
| Sharing image (Open Graph) | 1200 × 630 px |
| Story / vertical format | 1080 × 1920 px |
| Video thumbnail | 1280 × 720 px |
| Web image (HD) | 1920 px wide |
Handy references; adjust to the target platform.
Tips
- Shrink rather than enlarge to preserve sharpness.
- Keep the proportions to avoid stretched images.
- To reduce file size, combine with an image compressor.
Frequently asked questions
How does resizing work?
Your image is drawn onto a canvas at the new size, then re-encoded. Everything happens in the browser: no file is sent to a server.
Does resizing degrade quality?
Shrinking an image keeps excellent quality. Enlarging it beyond its original size, however, introduces blur: you cannot invent details that aren’t there.
How do I keep the proportions?
Leave the “keep aspect ratio” option on: changing the width automatically adjusts the height (and vice versa) to avoid any distortion.
Which formats are supported?
Common web formats: JPG, PNG and WebP. The downloaded image keeps a format suited to the original.
Are my images uploaded online?
No, never. Processing is fully local, which guarantees privacy even for sensitive documents.