For a faster website
Resize images online for free
Set an exact size in pixels or a percentage for JPG, PNG, WebP and AVIF, right in your browser. No sign-up, and your images never leave your device.
or drop them here · paste with Ctrl+V
JPGPNGWebPAVIFUp to 20 images · 30 MB each
Drop images to resize
Resized on your device. Nothing is uploaded.
%
Resized images can be lighter still. Compress them →Want the whole site done for you? Speed fix from
4000 × 2500 · 1.4 MB
1920 × 1200 · 224 KB−84%Same photo, sized for the web
A full-size photo is 4000 pixels wide and 1.4 MB. At 1920 pixels wide it still fills a large screen, and it weighs 224 KB.
- Original
- JPG · 4000 × 2500 · 1.4 MB
- Resized
- JPG · 1920 × 1200 · 224 KB · −84%
- Settings
- Width 1920 · proportions kept
How to resize images
Add your images
Choose up to 20 JPG, PNG, WebP or AVIF files, drop them on the page or paste one.
Set the size
Type a width or a height, or pick a percentage. Proportions stay as they are.
Download
Save each image or all of them in one ZIP. Nothing leaves your device on the way.
More about resizing images
Common image sizes
| Where | Size | Note |
|---|---|---|
| Full-width website image | 1920 × 1080 | Wide enough for most laptop and desktop screens |
| Blog or product image | 1200 px wide | Sharp in a content column, light to load |
| Instagram portrait post | 1080 × 1350 | 4:5, takes the most room in the feed |
| Story, Reel or TikTok | 1080 × 1920 | 9:16, full phone screen |
| Link preview (Open Graph) | 1200 × 630 | What Facebook, LinkedIn and chats show for a shared link |
| Shopify product photo | 2048 × 2048 | Square, room to zoom |
| Google Discover image | 1200 px wide or more | Bigger previews in Google’s feed |
Sizes change as platforms update their layouts; check the platform's own help page before a campaign.
Images for a fast website
- Make it as big as it is shown, times two. An image shown 600 pixels wide needs about 1200 pixels for sharp phone and laptop screens, not 4000.
- Resize before you compress. Fewer pixels make the biggest difference to the file size; compression does the rest.
- Keep proportions unless a layout needs an exact box. Crop to fill gives an exact size without stretching faces or products.
- Check the page afterwards. The free speed test shows whether the images were what made the page slow.
Your images stay on your device
The resizing happens in your browser. Your images are not uploaded, stored or seen by anyone; closing the tab leaves nothing behind.
Questions about resizing
How do I resize an image without losing quality?
Make it smaller, not bigger, and keep the proportions. Shrinking keeps an image sharp; enlarging past the original size cannot add detail that was never there.
Can I resize several images at once?
Yes: up to 20 images at a time, each up to 30 MB. All of them get the same size or percentage, and one ZIP holds the results.
What happens when I set both width and height?
With proportions kept, the image fits inside that box. Turn the lock off and it fills the box exactly: the edges that do not fit are cropped from the centre, nothing is stretched.
Will the format change?
No: a JPG stays a JPG, a PNG stays a PNG. To turn images into WebP or AVIF, the lightest formats for websites, use the free compressor.
Is it free? Do I need an account?
It is free, with no sign-up and no watermark.
Are my images uploaded anywhere?
No. Everything runs in your browser, on your device.
What size should images be for a website?
About twice the size they are shown at: a 600-pixel-wide slot needs a 1200-pixel image. Bigger only adds weight.
How do I make an image smaller in KB or MB?
Fewer pixels already make it lighter. For a lighter file at the same size, compress it next: Compress images
Does DPI matter?
Not on the web: screens show pixels, so only the width and height in pixels count. DPI matters only for print.
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