Why Does eBay Say My Image File Is Not Supported?

What formats does eBay actually accept?

eBay's help page lists JPEG, PNG, GIF, TIFF, BMP, WebP, HEIC and AVIF as accepted formats, at up to 12MB per photo (eBay: Adding pictures to your listings). In practice, sellers still report HEIC uploads failing on eBay's community forums, so JPEG remains the safest choice for main product photos.

RAW files from cameras (CR3, ARW, NEF, and similar) and HIF files from professional mirrorless cameras are never accepted. Renaming a HEIC or RAW file with a .jpg extension does not work. eBay checks the actual file data, not just the extension. Mochify's uploader does the same, and when it refuses a file the cause is often not the format at all: the upload error guide covers the sidecar and placeholder files behind many of those rejections.

The 12 MB file size limit

Every image must be under 12 MB per file. This catches two common scenarios: RAW or TIFF exports, which can run into the tens or hundreds of megabytes, and high-resolution JPEGs where someone has exported at 100% quality from a large sensor camera.

Exporting a JPEG at 80–90% quality and sizing the longest edge to around 1,600 pixels (eBay's recommended size for the zoom viewer) typically brings files well under the limit while keeping image quality high for buyers. Practical targets: files of 200–800 KB work well for most listings.

Fix it in one step with Mochify

Mochify's eBay image resizer and converter does both in one step: it resizes each photo to eBay's recommended 1600 pixels on the long edge and converts HEIC, HIF, WebP, AVIF and PNG files to high-quality JPEG, with GPS location stripped by default and nothing to type. For anything more specific, ask Magic Flow in the web app in plain English, for example:

The eBay photo size and rules page puts eBay's current limits and the one-prompt workflow on a single page.

Your image is processed in-memory and deleted immediately: nothing is stored. The free plan covers 25 images per month, or 3 a month without signing up, which is enough for occasional listings.

If you also sell on Vinted, photo prep is different there (portrait, not square, and no official spec) - covered in our Vinted photo guide.

Listing the same items on more than one platform? The photo requirements for every major marketplace differ - eBay, Poshmark, Mercari, Depop, and Vinted each want a different shape, size, or format.

Hitting upload errors on every listing is a volume problem as much as a format one. If you're reselling at any real scale, see our reseller ROI guide for the honest math on where the time actually goes.