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Image Cropper
Quick answer
Draw a crop box with draggable corner and edge handles, lock it to a ratio if you need one, or dial in the exact X, Y, width, and height by hand.
What the image cropper does
The selection box works like the crop tool in a desktop editor: drag inside it to move the whole frame, drag a corner handle to resize both edges at once, or drag a single edge handle to adjust just the width or the height. An optional aspect lock — 4:3, 3:2, 16:9, or a custom ratio — keeps the box proportional no matter which handle you pull.
Below the canvas, four number fields mirror the same selection as raw pixels: X and Y for the top-left corner, W and H for the size. Typing into them is the only way to land on an exact pixel boundary, which matters when a print lab or a form specifies a size like 600×800 and being four pixels off means a rejected upload.
Once a handle or a number field has focus, the arrow keys nudge the selection one pixel at a time, and Shift-arrow moves it further per press — the fastest way to square up a crop that looks close but is not quite aligned to a straight edge in the photo.
How to use it
Load the photo
Drop it onto the workbench or click to browse for the file.
Drag the selection into place
Move the box over the area to keep, then pull a handle to resize it.
Lock a ratio if needed
Choose a fixed aspect ratio, or leave it free to crop any shape.
Fine-tune with numbers or arrows
Type exact X, Y, W, H values, or nudge the selection with the keyboard for pixel accuracy.
Export the crop
Download the cropped region as PNG, JPEG, or WebP.
Your images never leave your device
The crop is calculated on a canvas in the tab that has the file open, so a photo of a paper receipt you are cropping down for an expense report never has to leave your laptop to get trimmed. The same goes for a product photo you are squaring up before a marketplace listing — the item is not public yet, and neither is the image.
- No file is ever uploaded to a server
- Works offline after the first visit
- No account, no watermark, no limits
Format and quality tips
Cropping is not the same operation as resizing
Cropping throws away pixels outside the selection box; the pixels you keep are untouched. Resizing keeps the whole frame but resamples every pixel to a new count. If a photo has an unwanted lamp post at the edge, crop it out; if the whole photo is just too large, resize it.
Straightening before cropping
If a shot of a product or a document was taken at a slight angle, rotate it a couple of degrees against a straight reference line — a table edge, a doorframe — before drawing the crop box. Crop first and rotate after, and you lose corners you already worked to keep.
Frequently asked questions
Does cropping reduce image quality?
The pixels you keep are not altered, so there is no quality loss from the crop itself. Exporting as JPEG afterward applies its own compression, separate from the crop.
Can I crop to a specific pixel size like 600 by 800?
Yes, type the width and height into the W and H number fields once the selection box sits on the area you want; the box snaps to those exact values.
Why is my crop box locked to a shape I did not choose?
An aspect ratio toggle is likely still active from a previous crop. Switch it to free-form to drag the box to any width and height independently.
What is the difference between cropping and resizing?
Cropping cuts pixels away at the edges and keeps the rest untouched. Resizing keeps the whole frame but resamples every pixel to change the count.
Can I nudge the selection by exactly one pixel?
Yes, click into the crop box or a number field first, then use the arrow keys. Each press moves it one pixel; Shift moves it further per press.
Will the exported crop keep the original file format?
You choose the output format at export time — PNG, JPEG, or WebP — independent of the source file format.
Further reading
- Social Media Image Sizes: The Cheat SheetThe sizes you actually need, in one table, and the reason a correctly-sized image beats a giant original: every platform re-encodes what you upload, so the pixels you send are never the pixels people see.6 min read
- Passport Photo Size GuideThe official sizes for US, UK, EU, India, China, Canada, Australia and Japan photos, converted to pixels at 300 DPI with the arithmetic shown — and a clear line on what a resizing tool can and cannot verify.6 min read
- How to Crop Images Without Losing QualityCropping does not blur anything — it just removes pixels at the edges. What actually costs you quality is re-encoding a JPEG and enlarging the crop afterwards. Here is how to avoid both.6 min read