Transparent PNG Checker

Confirm your PNG really has a transparent background.

Drop a PNG here, or click to choose
PNG, WebP or GIF · stays on your device

What counts as transparent

Every pixel has an alpha value from 0 (fully see-through) to 255 (fully solid). This tool reads those values and reports how much of your image is transparent. Cut-out artwork for stickers or apparel should have its whole background at alpha 0, with the corners see-through.

If your image is not transparent

  • Re-export from your design tool as a PNG or WebP with the background layer hidden.
  • JPG never supports transparency — switch formats.
  • Watch for a stray solid background layer left switched on.

Frequently asked questions

How can I tell if a PNG really has a transparent background?

Upload it here — the tool reads the image’s alpha channel and shows the exact percentage of transparent pixels, plus a checkerboard preview so you can see through the transparent areas.

My JPG looks like it has a white background — can I make it transparent?

JPGs can never be transparent; they always have a solid background. You would need to remove the background and save as PNG or WebP. This tool will tell you a JPG has no transparency.

Why does this matter for print-on-demand?

POD products (like shirts and stickers) print your artwork directly onto the item. If the background is not transparent, a solid rectangle prints around your design instead of just the artwork.

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