Crop images to a proportion
For a set of product shots that all have to be square, or thumbnails that must be 16:9 — the same crop applied to a whole folder at once.
- Runs entirely in your browser
- Works offline
- No upload
- No sign-up
- No watermark
Loading the tool…
How it works
- Drop your images.
- Pick the proportion and which part of the image to keep.
- Process and download them individually or as a ZIP.
Why nothing is uploaded
Every operation on this page is done by code running inside your browser tab, using the same engine that renders web pages. The file is read from disk into your tab’s memory, transformed there, and written back out as a download. It is never sent anywhere — not to us, not to a third party.
Verify it yourself
- Open your browser’s developer tools (F12) and select the Network tab.
- Load your file and run the tool.
- The only requests you will see fetch the tool’s own code — and, for a few heavy tools, their open-source engine from a public CDN — plus one small page-view ping to loreatec.jp (page address and title, nothing more). None of them carry your file.
Frequently asked questions
Does it stretch the image?
No. It keeps the largest area of the chosen proportion that fits inside your image and cuts away the rest. Stretching would distort every face and shape.
Why does the anchor (the part to keep) matter?
Because the middle is not always the right part to keep. Making a tall portrait square by keeping the middle cuts off the top of the head; choosing Top keeps the face. For landscapes the middle is usually right.
What is the A4 option for?
A proportion of 1.414:1, the shape of every A-series paper size (A4, A3 and so on). Cropping to it first means the image fills the printed page instead of leaving uneven white bands.
Can I set an exact pixel size instead?
Use the resize tool for that — it takes exact width and height. This one is about proportion, which is what matters when the images start at different sizes.