A little, because JPEG re-encodes. At quality 90 the difference is not visible at normal viewing sizes, and the file will be roughly twice the size of the HEIC.

Image Converting

HEIC to JPG

Drop your HEIC photos here Or tap to choose. As many as you like; it all runs on your device. Quality 90

Your photos never leave this device

Local · uses the browser’s own decoder

HEIC is the container Apple devices use for photos by default. It stores the same picture in roughly half the space of a JPEG, but many Windows applications and older websites cannot open it. Converting to JPEG trades that efficiency for a format that everything reads.

How to convert HEIC files

1 Drop your HEIC photos in, or tap to choose them.

2 They are decoded and re-saved as JPEG. Adjust the quality if you want smaller files.

3 Save them individually or all at once.

Browser support is the honest limitation here. Safari on Apple hardware decodes HEIC natively because the operating system does; Chrome and Firefox do not ship the codec, largely because of the patent licensing around HEVC. Rather than downloading a two-megabyte decoder onto every visitor, this tool uses whatever the browser already has and tells you plainly when it is not there.

Questions

Why does it say my browser cannot read the file? −

Because Chrome, Firefox and Edge do not include a HEIC decoder. Open the page in Safari on a Mac or an iPhone, or set your iPhone to shoot JPEG.

How do I stop my iPhone making HEIC files? +

Will I lose quality? +

What happens to the location data? +

Are the photos uploaded? +

Sources

Apple, change the camera file format on iPhone MDN, image file type and format guide

Was this tool any good?

Internal signal only · I use it to find the tools worth rebuilding