Why my file won't load: size, format, and quick fixes

If Dropmatico refuses to load your file, the cause is almost always one of four things. This article covers each in order of how often it happens.

Your file is over 100 MB

Dropmatico caps each file at 100 MB. If the file exceeds that, it will fail to load. For raw studio shots or high-bitrate RAW-converted exports, compress or downscale the source first in your camera app or a tool like Preview (macOS) or Photos (iOS) before dropping. Batch work has the same 100 MB per-file cap even though the session total goes up to 1.6 GB.

Your file is in an unsupported format

Dropmatico accepts JPEG, JPG, PNG, WebP, and HEIC. Anything else will not load. Common formats that don't work: TIFF, BMP, GIF, SVG, RAW (CR2, NEF, ARW, etc.), and PSD. For RAW files, export from your camera or editor as JPEG or HEIC first. For SVG, Dropmatico is raster-only and cannot process vector files.

Your file is corrupted or partially downloaded

If the file loaded partially from a cloud service or a slow network, the browser's image decoder can reject it. Open the file in your OS's default image viewer first. If it won't open there either, re-download from the source. If it opens elsewhere but not in Dropmatico, try a different browser.

Browser-specific quirks

HEIC support varies slightly by browser. Safari handles it natively. Chrome and Firefox support it through WebAssembly decoders bundled with Dropmatico. If an HEIC file fails to load in one browser, try another. For everything else, the behavior should be identical.

More help articles