Crop an Image to a 1:1 Square Ratio
Turn a rectangular photo into a perfect square. Slide the square frame over the part you want, choose a size such as 1080 × 1080, and download it. No sign-up, and your photo stays on your device.
Drop an image here to crop it to 1:1
JPG, PNG or WebP up to 50 MB. HEIC works in Safari.
Private by designYour image is opened and cropped in your browser. It isn’t uploaded to a server.
FormatsOpen JPG, PNG and WebP (HEIC in Safari). Save as JPG, PNG or WebP where your browser supports it.
1:1 · squareFor example 1080 × 1080 px. Any size with the same proportions works.
What Is a 1:1 Image Ratio?
A 1:1 ratio means the width and height are equal: the image is a square. That holds at any size. A 400 × 400 icon and a 3000 × 3000 photo are both 1:1; only their resolution differs.
Because neither side is longer, a square has no landscape or portrait orientation. That neutrality is what makes it useful in grids and lists, where every item should look consistent.
Common Uses for Square Images
- Profile pictures and avatars. Many sites display these as squares or circles cut from a square.
- Product photos in shop listings and catalogue grids.
- Social media posts and album or podcast artwork designed around a square frame.
- App and website icons, where a square source is easiest to scale.
How to Crop an Image to a Perfect Square
- Choose an image or drag it onto the upload area. JPG, PNG and WebP work in every modern browser.
- The 1:1 frame appears over your photo, already locked to the ratio. Drag it to move it, or drag a corner to make it bigger or smaller. You can also use the zoom slider.
- Rotate the photo if it’s sideways, and turn on the grid if you want help with composition.
- Check the output size. It starts at the full size of your crop; type a width or height to make the download smaller, and the other side updates to keep exactly 1:1.
- Pick JPG, PNG or WebP, then select Download.
Tip: the square frame starts as large as possible, as tall as a landscape photo or as wide as a portrait one. Usually you only need to slide it sideways (or up and down) to frame your subject.
Cropping vs resizing
Cropping cuts away the area outside the frame and changes the shape to 1:1. Changing the output size then resizes what’s left, scaling it up or down evenly, so nothing is ever stretched. To change only the pixel size of an image without cropping it, use an image resizer; to shrink the file afterwards, an image compressor can help.
Recommended Square Image Dimensions
Every row is 1:1. A larger square looks sharper but makes a bigger file.
| Size (px) | Typical use |
|---|---|
| 400 × 400 | Small avatars and icons |
| 800 × 800 | Profile photos and blog thumbnails |
| 1080 × 1080 | Square social media posts |
| 1200 × 1200 | Product photos with room to zoom |
| 2000 × 2000 | Large product images and print-ready squares |
How to Center a Face or Product in a Square Crop
- Use Recenter, then adjust. Recenter puts the frame in the middle of the photo; from there, nudge it with the mouse, your finger or the arrow keys.
- For profile pictures, leave a margin around the head. If the site shows avatars as circles, the corners of your square will be hidden, so keep the face well inside the frame.
- For products, keep even space on all sides so the item looks consistent next to others in a grid.
1:1 Ratio vs Other Image Ratios
A square crop always removes something from a rectangular photo. How much depends on the starting shape: a 4:3 photo keeps 75% of its width, a 3:2 camera photo keeps about 67%, and a 16:9 frame keeps about 56%.
If you need a little more room, try a frame that’s only slightly rectangular: 4:3 for landscape or 3:4 for portrait. For tall, full-screen phone images, 9:16 is the better fit.
Crop to Another Aspect Ratio
Frequently Asked Questions
What does a 1:1 ratio mean?
It means the image is exactly as wide as it is tall. Any square, whatever its size in pixels, has a 1:1 ratio.
What size should a square image be?
It depends on where it will appear. 1080 × 1080 is a common choice for square posts, while 400–800 pixels is usually enough for avatars. Use a size no larger than your crop to keep it sharp.
Can I make a square image without cutting anything off?
Only by adding space around the photo rather than cropping it. Cropping to 1:1 always removes part of a rectangular image; the frame lets you choose which part.
Will a PNG with a transparent background stay transparent?
Yes, if you download as PNG or WebP. JPG doesn’t support transparency, so transparent areas are filled with white.