Crop PNG Online

FloxerFile lets you crop a PNG image directly in your browser. Whether you're removing an unwanted border, tightening the frame around a subject, or cutting out distracting edges, drag the crop handles over a live preview of your image and download the result — transparency is preserved throughout, no software, no sign-up.

How it works

1. 1

   Upload your PNG

   Drag and drop your PNG image, or click to browse. Files up to 20 MB are supported.

2. 2

   Select the area to keep

   Drag the corners or edges of the crop box over the live preview of your image to select exactly the area you want to keep.

3. 3

   Crop

   Click Crop PNG. Your image is cropped to the new dimensions on our servers.

4. 4

   Download your cropped PNG

   Download the resulting PNG with the new margins applied and transparency preserved.

Features

• Drag-to-crop with a live preview

  The crop box sits directly over your image, corners and edges draggable, with no fixed aspect ratio forced on the selection.

• Percentage-based crop area

  Your selection is stored as a percentage of the image's dimensions rather than fixed pixels, so it maps correctly no matter the source image's resolution.

• Alpha channel kept intact

  The PNG's transparency channel passes through untouched — cropping never flattens it onto a white or black background.

• No account required to start

  Crop as many PNGs as you like without creating an account. Each file is processed in memory and removed automatically once you've downloaded the result.

Supported formats

Output format: .png

Frequently asked questions

How do I select the crop area?

After uploading your image, a crop box appears over a live preview. Drag any corner or edge of the box to resize it, or drag inside the box to move it — the area inside the box is what gets kept.

Can I select any crop area, or is it fixed?

The crop is free-form — there's no fixed aspect ratio, so you can select any rectangular area of the image you like.

Can the selection be too small?

If you shrink the crop box down to nothing, the tool rejects the request and asks you to select a larger area.

Will cropping remove the transparent background of my PNG?

No. The alpha channel is preserved exactly as it was — cropping only trims the frame, it never flattens or alters transparency.

Can I crop other image formats?

This tool only accepts PNG files. Use Crop Image for JPG or Crop WebP for WebP files.

What happens to my file after I download the result?

It's processed on our servers only long enough to perform the crop, then deleted automatically right after your download completes — nothing is kept or shared.

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