Drag and drop images here
JPG, PNG, WebP and more · select several at onceHow to use
- Drag and drop the images you want to resize, or click Choose images.
- Choose whether to resize by percentage or by pixels.
- In pixel mode, enter just the width or the height and the other side is calculated for you. For an exact size, enter both and turn off Keep aspect ratio.
- Press Resize, then download images one by one or all together as a ZIP.
Pixels and file size
A digital image is a grid of pixels. A 4000 × 3000 photo holds 12 million pixels; halving both sides to 2000 × 1500 leaves 3 million, a quarter as many. File size shrinks roughly in proportion. If your main goal is a smaller file, the image compressor lets you adjust quality as well, which usually saves even more.
Two ways to set the size
Percentage: Scale relative to the original. 50% halves both the width and the height. This is handy when a batch contains photos of different sizes and you want to shrink them all by the same amount.
Pixels: Set exact dimensions for places that expect a specific size, such as a website banner, a store’s product image slot or a profile picture.
Common sizes
| Use | Size |
|---|---|
| Full-HD screens and blog posts | 1920 px longest side |
| Social sharing previews (Open Graph) | 1200 × 630 px |
| Square product photos | 1000 × 1000 px |
| Email and messaging | 1280 px longest side |
Tips for sharp results
Resize in a single step to the final size; shrinking an image several times in a row softens it a little each time. Keep your original files, and when you need several sizes, make each one from the original. This tool scales images with the browser’s high-quality smoothing and saves JPG and WebP at 92% quality.
Privacy
Images are never uploaded, and the output does not keep EXIF metadata such as GPS location.
Frequently asked questions
- How does Keep aspect ratio work?
- If you enter only one side, the other is calculated from the original proportions. If you enter both, the image is scaled to fit inside that box, so one side may come out smaller than you typed. With the option off, the image is stretched or squeezed to the exact size.
- Can I make an image bigger?
- Yes. Enter a percentage above 100% or pixel sizes larger than the original. The browser cannot invent missing detail, though, so enlarged images look softer the more you scale them up.
- Will the file format change?
- No. JPG stays JPG, PNG stays PNG and WebP stays WebP. Formats that cannot be saved again, such as GIF or BMP, are saved as PNG, and animated GIFs keep only the first frame. Use the image converter to change formats.
- What size should I use for a website?
- 1920 px on the longest side covers full-HD screens and blog layouts. Social sharing images are commonly 1200 × 630 px, and many online stores use square product photos of 1000 × 1000 px or larger.
- Are my images uploaded?
- No. Resizing happens in your browser and the images never leave your device.