Why Does eBay Say My Image File Is Not Supported?
eBay rejects images in formats its upload tool does not accept, most commonly HEIC files from iPhones, HIF or RAW files from mirrorless cameras, and WebP or AVIF exports from editing software. Converting to JPEG before uploading fixes the error in almost every case.
Published June 24, 2026 by the Mochify Engineering Team
What formats does eBay actually accept?
eBay's seller upload tool reliably accepts JPEG, PNG, GIF, BMP, and TIFF. Although eBay's developer documentation lists WebP, HEIC, and AVIF as supported at the server level, many sellers report that the web uploader rejects these formats with a "file not supported" message. JPEG is the safest choice for main product photos and is what seller guides consistently recommend.
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.
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 Converter handles both problems at once. Upload your HEIC, HIF, WebP, or oversized JPEG and describe what you need in plain English. You could type something like:
Convert to JPEG, resize to 1600px on the longest side, and keep quality around 85
Mochify interprets that and applies the right settings automatically. Your image is processed in-memory and deleted immediately: nothing is stored. The free plan covers 25 images per month, or 3 per session without signing up, which is enough for occasional listings.
Related Guides
- What Image Format Should I Use for Product Photos? — A quick breakdown of JPEG, WebP, and AVIF for ecommerce product listings.
- Ecommerce Product Photo Workflow: Resize & Convert in One Prompt — How to batch-process product images for any marketplace using natural language.
- Should I Optimize My Images Before I Upload Them? — Why pre-optimizing before any platform upload is faster and safer.