Why won't Amazon accept my WebP images?

Amazon's image pipeline accepts JPEG, PNG, TIFF and GIF only. WebP uploads fail silently or return a format error. Convert to JPEG first.

Is the conversion lossless?

No — JPEG is a lossy format. At quality 90+ the difference is invisible for product photography, and the file is still typically smaller than a PNG.

Can I convert to PNG instead?

Yes, use the PNG option in the format menu, which keeps transparency. For photos JPEG is the better choice.

Do my files get uploaded?

No. Decoding and encoding happen in your browser with the Canvas API.

WebP to JPG Converter

Supplier images arrive as WebP; marketplaces want JPG. Convert a batch locally and download the set.

Free
No upload
No signup
Batch

Drop images here, paste, or click to choose

JPEG, PNG, WebP, HEIC, GIF, BMP, AVIF · any number of files · processed on your device, never uploaded

Output formatQuality — 90Background for transparent areas

Maximum file size (optional)

Most supplier catalogues, Alibaba/1688 listings and modern websites deliver WebP because it is small. Amazon, TikTok Shop and Etsy do not accept it for listing images, and Windows Photos, older Photoshop versions and many print shops cannot open it. The usual fix — screenshotting — throws away resolution and colour accuracy.

This converter decodes the WebP (or AVIF) file and re-encodes it as a JPEG at the quality you choose, with transparency flattened to a colour you pick. It runs in the browser, so a hundred files take as long as your laptop needs, not an upload queue.

How it works

01
Drop WebP or AVIF files
Any number. Transparency is flattened to the background colour you set (white by default).
02
Choose quality
90 is the sweet spot for listings; set a max file size if a platform needs one.
03
Download
Each file individually or everything as a zip.

WebP vs JPG for product listings

WebP compresses 25–35% smaller than JPEG at similar quality and supports transparency, which is why sites serve it. JPEG remains the universal interchange format: every marketplace, print service and image editor reads it. For listing uploads, convert to JPEG at quality 90+ and keep the WebP as your web master.

Animated WebP files are converted using their first frame.

Keeping quality through the conversion

Converting lossy to lossy always costs a little, so convert once from the best source you have and do it at quality 90–95. Do not run the JPEG through a second compressor afterwards; if you need a smaller file, set the size limit here so the tool encodes only once.

Questions

Why won't Amazon accept my WebP images?: Amazon's image pipeline accepts JPEG, PNG, TIFF and GIF only. WebP uploads fail silently or return a format error. Convert to JPEG first.
Is the conversion lossless?: No — JPEG is a lossy format. At quality 90+ the difference is invisible for product photography, and the file is still typically smaller than a PNG.
Can I convert to PNG instead?: Yes, use the PNG option in the format menu, which keeps transparency. For photos JPEG is the better choice.
Do my files get uploaded?: No. Decoding and encoding happen in your browser with the Canvas API.

Next step

Now make the studio shot from the same photo

The photo you just prepared is all Glowya needs. Pick a template built for your product category and it restages the product into a lit, styled scene — label and packaging untouched. Every plan starts with a 7-day free trial.