Custom Ratio Photo Cropper
Total creative freedom. Drag the handles anywhere you want to crop your image to custom dimensions perfectly suited for your unique project.
Last updated: August 2026
Drop your images here or click to select
Supports JPG, PNG, WebP and AVIF
An aspect ratio is only the relationship between width and height — 3:2 means three units across for every two down, at any size. That is worth stating plainly because it explains why a ratio and a pixel size are different problems. Getting the ratio right decides whether your image fits its slot without anything being trimmed; the pixel size decides only how much detail is in it. Most framing frustration comes from trying to solve both at once.
The presets here cover the ratios that recur: 1:1 for anything shown in a circle, 4:3 for classic photography and slide decks, 16:9 for video and widescreen, 9:16 for stories and vertical feeds, and 2:3 for prints and pins. Free-form mode exists for everything those miss — a 4:1 profile banner, an odd CMS slot, a strip of a screenshot, a print size a client specified in centimetres. Dragging the handles with no lock is the fastest route when the target is a shape rather than a named ratio.
The lock is worth using even when your target is unusual, though, because eyeballing a ratio does not work. A frame you drag by hand will be a few pixels off, and whatever displays it then either letterboxes the difference or crops it away — which is precisely the invisible edge-trimming people blame on the platform. If your destination has a fixed shape, lock to it and move the frame; use free-form only when nothing downstream is enforcing a ratio.
How to crop an image to a custom aspect ratio
- 1
Open your image
Drop a JPG, PNG, WebP, or AVIF into the box above. It is decoded locally by your browser and never uploaded.
- 2
Pick a preset or go free-form
Choose 1:1, 4:3, 16:9, 9:16, or 2:3 to lock the frame to that ratio, or leave it unlocked to drag any shape you like. A locked frame keeps its proportions no matter which handle you pull.
- 3
Straighten first if needed
Rotate anywhere from -180° to 180° before you finalise the frame. Straightening after cropping forces a second crop to remove the corners rotation introduces, which costs you image you had already decided to keep.
- 4
Crop and export
Download as JPG, WebP, PNG, or AVIF. The crop is computed against the image's full native resolution, not the preview you see on screen, so the output is as sharp as the source allows.
Pro tip: When you know the exact output pixels you need, still crop to the ratio here first and set the size afterwards rather than trying to hit both in one move. Cropping to the right shape from your full-resolution original and then resampling once, in Resize Image, gives a cleaner result than cropping to approximately the right pixels by hand. It also means one crop can serve several output sizes — the ratio stays valid however far down you scale it.
Troubleshooting: If your image is trimmed after uploading it somewhere, the crop ratio did not match the slot and the destination corrected it. Find the ratio the destination expects and lock to it rather than adjusting by eye. If the image looks stretched instead of trimmed, it was resized into the target dimensions rather than cropped to them — resizing changes proportions, cropping removes area, and only the second keeps faces and objects in shape. If a rotated crop has transparent or white wedges in the corners, the frame extended past the rotated image; pull it in slightly.
Working towards a named ratio? Crop Image to Square (1:1) and Crop Photo to 4:3 Ratio go into each one in depth, and Crop Image for Pinterest Pin covers the vertical 2:3 frame. For specific jobs, Crop Screenshot Online and Crop Image for Website Hero Banner start from the shapes those tasks need. To convert an existing image between ratios rather than crop it, see Image Aspect Ratio Converter, or open the full Crop Image tool.
Frequently asked questions
How do I crop an image to a custom aspect ratio?
Leave the ratio unlocked and drag the frame handles to the shape you want, or pick one of the presets — 1:1, 4:3, 16:9, 9:16, 2:3 — when your target is one of the common ratios. A locked frame holds its proportions while you move and resize it, so you can position it freely without drifting off the ratio.
What is the difference between aspect ratio and image size?
The ratio is the shape — the relation between width and height. The size is how many pixels make up that shape. A 16:9 image can be 1280×720 or 3840×2160; both have the identical ratio and very different amounts of detail. Ratio decides whether your image fits its slot, size decides how sharp it is.
Does cropping to a custom ratio lose quality?
No. Cropping removes the pixels outside the frame and leaves the ones inside at their original density — nothing is resampled, so nothing softens. Quality is only lost if you enlarge the result afterwards, or re-save a JPG repeatedly. Cropping once from the original file avoids both.
Can I rotate and crop at the same time?
Yes, and rotating first is the right order. Use the rotation slider to straighten the image, then position the crop frame inside the rotated result. Doing it the other way round means cropping twice, because rotation leaves empty corners that have to be cropped away again.
Are my images uploaded when I crop them here?
No. The crop runs entirely in your browser using your own device, so nothing is uploaded, stored, or logged. Once the page has loaded, the tool keeps working with your connection off — which is a straightforward way to confirm the file is not going anywhere.
Looking for the full-featured version? Open the main Crop Image tool.
Related Tools & Resources
Image Aspect Ratio Converter – 16:9, 4:3, 1:1
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4:3 Photo Cropper – Classic Ratio
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Crop Screenshots Online – Remove Unwanted Areas
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Crop Image for Website Hero Banner
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Crop Image – Full Tool
Interactive cropping with ratio presets, free-form mode, and rotation.
Square Image Cropper — Crop Photo to 1:1 Free
Crop image to square (1:1) free in your browser — no upload. Includes the exact square sizes Instagram, LinkedIn, Shopify and app stores actually publish.
Crop Image for Pinterest Pin – 2:3 Ratio
Crop images for Pinterest pins in the optimal 2:3 vertical aspect ratio. Maximize visibility and clicks with private browser cropping—free and instant.