Auto-crop margins
Render each page locally, detect the non-white content bounds, and set per-page crop boxes with padding.
Private workspace
Nothing uploaded Add a file first.
How to auto-crop margins
1
Add your file
Drop it in or click to choose. It stays on your device.
2
Set options
Tweak the settings, or just use the sensible defaults.
3
Download the result
One click. It was built right here, in your browser.
Why Unfleece vs fleeceware
Unfleece
- Runs in your browser — no upload
- Free, no account, no card
- Open source (AGPL-3.0)
- No file-size paywall
Typical fleeceware site
- Uploads your file to a server
- $1 trial → ~$50 / week
- Closed and opaque
- Locks results behind pay
Frequently asked
Is Auto-crop margins really free?
Yes — free, forever, no account and no trial that bites. There is no server bill to recover because nothing is uploaded.
Are my files uploaded anywhere?
No. Your browser reads the file into memory and runs Auto-crop margins on your device. Open the Network tab and watch — you will see zero upload requests.
Is there a file-size or page limit?
No hard limit. The only ceiling is your browser memory, so very large files may be slow. We warn you before that becomes a problem.
Does it work offline?
Once the page has loaded, yes. You can turn off Wi-Fi and it still works — the strongest proof that nothing leaves your device.