Resize Images Online
Use this tool to resize image files by percentage or by exact width and height. Pick a preset for social media, keep the aspect ratio, and download in seconds. Your images never leave your browser.
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How it works
Add your images
Drop up to 30 JPG, PNG, WebP or GIF files onto the box, or click it to choose them.
Choose the new size
Scale by percentage, or enter a width and height, or pick a preset such as 1200 × 630.
Download the resized files
Each result shows its new dimensions and size. Save them one by one or as a ZIP.
How to resize an image
Add your files, choose how you want to resize and press Resize. Each image is scaled inside your browser, and the result shows the old and new dimensions next to the new file size. You can change the settings and press Resize again as often as you like, because nothing is uploaded.
The same settings apply to every file in a batch, so you can shrink a whole folder of photos to the same width in one run.
Resize by percentage or by size
| Option | How it works | Best for |
|---|---|---|
| By percentage | Scales width and height together, for example 50% | Quickly shrinking many photos of different shapes |
| By width and height | Fits the image to the size you type | Websites, documents and any exact target |
| Presets | Fills in common sizes for social media and the web | Instagram, YouTube and link previews |
With Keep aspect ratio on, the image is scaled to fit inside the width and height you enter, so it is never stretched. Turn it off only when you really want an exact size.
Common image sizes
| Use | Typical size (px) |
|---|---|
| Blog or article image | 1200 wide |
| Instagram post | 1080 × 1080 |
| Story or Reel | 1080 × 1920 |
| Link preview (Open Graph) | 1200 × 630 |
| YouTube thumbnail | 1280 × 720 |
| Email or newsletter image | 600 wide |
These are typical sizes, and platforms can change their guidance, so check the current requirements of the service you upload to.
Resizing without losing quality
Making an image smaller discards pixels, and the tool does it in several gentle steps so edges stay sharp. Making an image larger cannot add real detail, so enlarged pictures look soft. Whenever you can, start from the biggest original and scale down. Our guide on resizing an image without losing quality explains this in more depth.
Resize, crop or compress?
| You want to | Use |
|---|---|
| Change the pixel dimensions | This resize tool |
| Cut away part of the picture | Crop Image |
| Reduce file size and keep the dimensions | Compress Image |
| Switch to a smaller format | Image to WebP |
Choosing the output format
By default each image keeps its format. You can also save as JPG, PNG or WebP while resizing. WebP usually gives the smallest file for websites, JPG is the safest for sharing, and PNG keeps transparency without loss.
Frequently Asked Questions
Does resizing reduce the file size?
Usually yes, because fewer pixels need to be stored. The size shown next to each result is the real measured size.
Will my image be stretched?
Not when Keep aspect ratio is on. The image is scaled to fit inside the size you enter.
Can I make an image bigger?
Yes, up to 400% or 8000 pixels on the longest side, but enlarging cannot add detail, so the result looks softer.
Can I resize many images at once?
Yes. Add up to 30 files, each up to 25 MB, and download them together as a ZIP.
Are my images uploaded?
No. Resizing happens in your browser.