Smart crop image online, free saliency-driven subject cropper
Drop a photo, pick an aspect ratio, and let the saliency model pick the most interesting rectangle. No dragging, no hand-tuning.
- Aspect-ratio presets
- Saliency-driven
- Centred fallback when unsure
Drag to compare, before / after
Overview
Cropping a portrait to a 1:1 thumbnail without chopping off the subject is the kind of fiddly task that eats five minutes for the price of a single image. Smart crop replaces the manual draggable rectangle with a saliency model: every candidate window scores by saturation, edge density, and skin-tone density, and the tool picks the window with the highest weighted score that matches your requested aspect ratio.
For portraits, product shots, and most photographs the tool reliably keeps the subject in frame and trims the dead pixels around it. For inputs without a clear focal point (abstract art, group photos, uniform-colour images) it falls back to the centred rectangle so the result is at least predictable.
The whole pipeline runs on our server because the saliency model needs native pixel access and the smartcrop algorithm is deterministic enough that we do not need to mirror it client-side. The upload is held only while we compute the bounds and emit the cropped file, then deleted. Nothing is saved.
How it works
Three steps, usually done inside five seconds.
- 1
Upload an image
Drop a JPG, PNG, WebP, or AVIF up to 25 MB.
- 2
Pick an aspect ratio
Choose 1:1, 4:5, 16:9, 9:16, 3:2, 2:3, or Custom (type your own width and height pair).
- 3
Confirm
The saliency model picks the rectangle that maximises subject coverage. The tool reports the chosen bounds so you can compare them to the source.
- 4
Download
The cropped image downloads with `-smart-cropped` appended to the original filename. Pick the output format (Same as source, JPEG, PNG, or WebP) before submitting.
See it in action
Drag each slider to pixel-peep the before and after.
Your image, gone when you're done
Smart crop runs on our server because the saliency model needs native pixel access. Your upload is held only while we compute the bounds and emit the cropped output, and is deleted the moment we send the file back. Nothing is saved, indexed, or trained on.
- Processed in seconds
- Nothing saved
- No account linked
Upload an image
One click. No signup. We'll do the rest.
Smart crop image
Need to process more than one image?
The free Smart crop image online, free saliency-driven subject cropper runs one image at a time. A credit pack unlocks up to 50 images per batch, a single ZIP download, and three named presets (Blog / Social / Ecom). From €5 for 100 credits. Pay once, never expire.
Frequently asked questions
Answers to the things most people ask before trying a new tool.
Related tools
One-click jumps to other jobs this image probably needs.
Crop image (manual)
Want to pick the rectangle yourself? The manual cropper has aspect-ratio presets and a draggable stencil.
Resize image
Already at the right shape? Resize to exact pixels with optional aspect-ratio lock.
Pad to square
Want to keep the whole frame? Pad to a target aspect ratio instead of cropping it away.
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