Imresizer Logo

Custom Aspect Ratio Crop

Crop your image to any custom aspect ratio you type in — not just 1:1 or 16:9. Set your own width and height ratio and get an exact crop every time.

Advertisement

Please select an image to get started (0/12)

Or drag & drop images in this page

JPGJPEGPNGWEBPPDFHEIC

Or try with sample images:

100% Free & no login required. Your images never leave your device.

Ratio

How It Works

Step-by-step guide to crop your image to any custom aspect ratio you type in — not just 1:1 or 16:9. set your own width and height ratio and get an exact crop every time.

Upload Your Image

Select a JPG, PNG, or WebP image from your device. Any orientation works — the custom ratio you set determines the final shape, not the original photo.

Enter Your Ratio

Type your own width and height values into the custom ratio fields. The crop box updates instantly and stays locked to that shape as you drag and resize it.

Download Your Crop

Your image crops to the exact ratio you entered, instantly in your browser. Download the result — nothing was uploaded or stored on a server.

Advertisement

Why Choose Imresizer?

Fast, secure, and completely free image resizing

  • Any Ratio You Want

    Type in your own width and height, like 5:7 or 2:3.5, instead of picking from a fixed list of presets.

  • Exact Control

    Fine-tune the numbers until the crop box matches the exact shape you need, then drag it into place on your image.

  • Locked While You Drag

    Once you set your ratio, the crop box keeps that shape as you resize it — no accidental stretching or squashing.

  • 100% Free

    No account, no watermarks, no hidden limits.

  • Private — Nothing Uploaded

    All cropping runs entirely in your browser. Your images never touch a server.

  • Works on Any Device

    Crop images on your phone, tablet, or desktop — no app install needed.

Related Image Tools

Explore more powerful image editing tools to enhance your workflow

Crop to 16:9 Widescreen

Universal format for video and modern displays.

Try now

Square Crop (1:1)

Crop any image to a perfect square for Instagram and social media.

Try now

Free Crop Tool

Drag any rectangle on your image — no aspect ratio lock or preset.

Try now
Testimonials

What Our Users Say

Trusted by thousands of users worldwide since 2015

“
So fast and simple — cropped my image in seconds without installing anything.
“
Love that nothing is uploaded to a server. My photos stay private.
“
Works perfectly on my phone. No app needed.
“
Free, no watermark, no sign-up. Exactly what I needed.

Frequently Asked Questions

Everything you need to know about image resizing

How do I crop an image to a custom aspect ratio?

Upload your image, then type your own width and height numbers into the ratio fields — for example 5 and 7 for a 5:7 crop. The crop box locks to that shape, and you can drag it anywhere on your image before downloading.

Can I use decimal numbers for a custom ratio?

Yes. You can enter values like 2 and 3.5 if you need a ratio that isn't a whole number. The tool calculates the exact proportions and keeps the crop box locked to that shape while you position it.

What's the difference between custom crop and free crop?

Custom crop locks the crop box to a ratio you define, so every side stays proportional as you resize it. Free crop has no lock at all — you can drag it into any shape, which is better when you don't care about a specific ratio.

Why would I need a non-standard aspect ratio?

Print sizes, framed photos, and some ad platforms use ratios that don't match 16:9 or 1:1 — an 8x10 print, for instance, is a 4:5 ratio. Typing in the exact numbers gets you a crop that fits without any cropping guesswork.

Does cropping reduce image quality?

No. Cropping removes pixels outside the selected area but does not compress or alter the remaining image quality.

Are my images private?

Yes, 100% private. All cropping happens entirely in your browser — your images never leave your device or reach any server.

What image formats are supported?

You can crop JPG, PNG, and WebP images. The output is downloaded in the same format as your original file.

Is this tool free to use?

Yes, completely free. No account, no watermarks, no hidden limits. Crop as many images as you need.

Does it work on mobile?

Yes. The tool works on any modern browser — phone, tablet, or desktop. No app installation required.
Advertisement