Problems · Compatibility
Why Can't I Upload WEBP?
Browsers play WebP well; enterprise uploaders often don’t. Convert a delivery copy for stubborn forms.
Problem: A form, CMS, or email tool rejects WebP even though the browser can display it.
Solution: Convert WebP → JPG for photos or WebP → PNG when you need transparency, then upload.
Why rejection happens
MIME allow-lists, older CDNs, and email tools never added image/webp.
Pick the right target
Photos → JPG. Graphics with alpha → PNG. Then retry the upload.
Keep WebP for the web
Continue using WebP on modern sites; convert only when a specific tool blocks it.
Fix it in three steps
- Convert WebP. Open WebP → JPG or WebP → PNG.
- Upload the copy. Use the format the form accepts.
- Archive WebP. Keep WebP for places that support it.
Open the relevant converter
Convert privately in your browser — nothing is uploaded to a remote queue.
Related tools & guides
Related problems
FAQ
Why can't I upload WEBP?
Many CMS and email uploaders only allow JPG/PNG. Convert WebP to JPG (photos) or PNG (transparency), then upload — keep WebP for modern websites.
Is WebP unsupported in Chrome?
No — Chrome displays WebP fine. The blocker is usually the upload API, not the browser.
Why this works locally
- No third-party converter queue — processing stays in this browser
- Convert a delivery copy — keep your master
- Same privacy-first engine as the rest of Format Convertly
Browse all guides, converters, or how to open.