Softonic

Crop PNG

Step 1 / 4

Choose a PNG

Choose a PNG, set an exact rectangle and download the cropped result. The image is decoded and re-encoded inside your browser, without being uploaded to our server.

How to crop a PNG

  1. 1

    Choose a PNG

    Select one PNG up to 20 MB, 8,192 pixels per side and 16 megapixels.

  2. 2

    Set the rectangle

    Drag across the preview or enter X, Y, width and height in pixels.

  3. 3

    Review the crop

    Check the output dimensions and preview before downloading.

  4. 4

    Download the PNG

    Save the browser-generated PNG with its visible transparent areas retained.

What the crop keeps

The output keeps the pixels inside the selected rectangle, including their visible transparency. Coordinates are limited to the image, so an oversized or negative entry cannot create an out-of-bounds crop.

What the browser changes

This is a decoded-pixel crop, not a byte-level edit. The browser re-encodes the result as an 8-bit PNG. It does not preserve the source file’s metadata, palette mode, 16-bit channel precision, interlacing or exact compressed bytes. Colour management can also differ between browsers. If those technical properties must remain unchanged, use a desktop PNG editor that supports lossless chunk-level workflows.

Limits and privacy

The source must be a valid PNG no larger than 20 MB, 8,192 pixels on either side or 16 megapixels in total. The generated file is limited to 30 MB. Processing occurs locally. In the multi-step flow, the browser keeps a temporary copy in IndexedDB for up to 30 minutes so the image survives navigation between steps. Starting over or expiry removes that local record. The image and its name are never placed in the page URL or sent through Livewire.

Frequently Asked Questions

Yes. Transparent and partially transparent pixels visible in the selected area remain transparent in the generated PNG.

No. The browser decodes the source and creates a new 8-bit PNG. The visible crop is retained, but metadata, palette structure, 16-bit precision, interlacing and compressed bytes are not.

No. Decoding, cropping and export happen in your browser. The multi-step flow may keep a temporary local browser copy for up to 30 minutes, but it is not uploaded to our server.

The file may not be a valid PNG, may be damaged, or may exceed 20 MB, 8,192 pixels per side or 16 megapixels.

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