Practical Tool Guides
What to check when HEIC conversion fails
Troubleshoot browser support, file condition, and recovery limits when HEIC or HEIF photos will not convert.
Check browser decoder support
A browser-only HEIC converter depends on whether the browser and operating system can decode the file.
- Try Safari or a device-native browser when possible.
- Try another modern desktop browser.
- Use the HEIC file checker before assuming the file is broken.
Check the file itself
Some HEIC files have readable metadata but damaged or unsupported image streams.
- Confirm the file opens on the original device.
- Avoid editing the file extension manually.
- Keep the original until export succeeds.
Know the recovery limit
Browser tools can export images they can decode, but they cannot rebuild severely corrupted HEVC image data.
- Valid headers do not guarantee a usable image.
- Try JPG first for compatibility.
- Use PNG when preserving transparency or lossless output matters.