Check the file type
IMGifyx validates files locally and accepts standard web image types — JPG, PNG, WebP, and GIF or SVG where the tool supports them. A file with an image extension that's actually something else (a renamed document, for example) will be rejected. Re-export it from its original app as a real image.
Very large images
Browsers cap how large a Canvas can be, so extremely high-resolution images (tens of thousands of pixels on a side) may fail to render. Try resizing down first, or use a tool that processes without a full canvas where available.
Still stuck?
Refresh the page to clear any in-memory state, make sure your browser is up to date, and try a different browser to rule out an extension interfering. If the problem persists, the Status page lists known limitations, and you can reach us from the Contact page.