Transparent PNG turns black on Etsy: what to upload

Etsy says this outright

From Etsy's own requirements page: animated GIFs and transparent PNGs are not supported, and if a file contains transparency, the transparent parts of the image will appear black on Etsy. There is no setting to change and no warning at upload. The file is accepted, and the black appears afterwards. Most platforms composite a transparent image onto white. Etsy does not — it drops the alpha channel and what was transparent becomes black. On a design with a cut-out background, that is the entire area around your artwork.

Why this catches print-on-demand sellers specifically

Because you are handling two images that look like the same thing and are governed by opposite rules. The print file goes to Printful, Printify, Redbubble or Merch by Amazon, and every one of them wants a transparent background — without it, a white box prints around your design on a dark garment. The listing photo goes to Etsy, which cannot show transparency at all. So the file that is correct for the printer is actively wrong for the shop page, and it is sitting right there in the same folder with a sensible name. That is the whole trap.

Same artwork, two files

What to upload instead

1. A mockup, if you have oneThis is the right answer almost every time. A mockup shows the design on the actual product, which is what a shopper is deciding about — and it has no transparency by construction. Most print-on-demand platforms generate mockups for you from the file you already uploaded. Download those and use them as listing photos.
2. Flattened onto a background, if you must show the artwork alonePlace the design on a solid background in any editor and export as JPEG. Choose the background deliberately rather than defaulting to white: a white background makes a white-ink design invisible, and a design meant for a dark garment usually reads better on a dark card. What you must not do is leave the alpha channel in and hope Etsy handles it.
3. Check it before you publish, not afterTransparency is invisible in most thumbnail views — your file browser, your design tool and your desktop preview all composite it onto white, so the file looks fine right up until Etsy renders it black. Run the file through a check that reads the alpha channel rather than trusting a preview.

The other three you are about to hit

Once transparency is sorted, Etsy has three more rules that bite quietly. Over 1 MB may not finish uploading. Etsy words it as a risk rather than a refusal — the upload slows down and sometimes never completes, particularly on a slow connection. A print-resolution export is far past this, which is another reason not to reuse it. 2000 px on both sides is the recommendation, 635 px the floor. Etsy states that a first photo below 635 px shows the listing lower in search. Between the two, you will not be blocked, but the zoom view has nothing to work with. The first photo should be landscape or square. The thumbnail crop takes the centre, so a portrait image loses more of itself than a landscape one. Later photos in the listing are unaffected. And one that is easy to forget: Etsy accepts JPG, GIF, PNG, SVG and HEIC — not WebP. Since none of the print platforms take WebP either, a WebP export is a dead end at both ends of the workflow.

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