See the colour profile inside a HEIC photo
Find out which colour space a HEIC photo uses. The page shows the ICC profile description, primaries, white point and transfer, or the nclx values when there is no ICC profile.
Drop HEIC photos here, or pick them from your device
Stays on your device. Nothing is uploaded.
Processing on this device
How to use it
- Drop a HEIC photo onto the page.
- Read the profile description. iPhone photos are usually Display P3.
- Check primaries, white point and transfer function.
- Read the gamut note for what it means for your photo.
What it keeps
- The file, which is only read.
- Nothing is sent anywhere.
What it removes or changes
- Nothing changes in the photo.
Limits
- This describes the colour space. It does not tell you whether a photo looks good.
- It does not apply HDR tone mapping. For HDR data, use the gain map inspector.
- Some files carry nclx values instead of an embedded ICC profile.
Compatibility
Colour mismatches show up as photos that look dull or oversaturated after converting. Knowing the source profile explains why, and tells you whether converting to sRGB, which is the default in the converters, or keeping the original profile is right for your use.
Privacy
The profile is read locally in your browser. The file is not uploaded.
Convert to sRGB or keep the original profile
Converting to sRGB is the safe default: colours look right in almost every app. Keeping the Display P3 profile preserves the wider colour range for software that understands it, such as Apple apps and editors with colour management. If you do not know where the file ends up, use sRGB.
Troubleshooting
My photo is Display P3 and looks dull elsewhere.
The app ignores profiles. Convert with the default sRGB option.
There is no ICC profile.
The file may use nclx values instead. The page shows those.
Values look unfamiliar.
Primaries, white point and transfer describe how numbers map to colour. Display P3 has wider primaries than sRGB.
Frequently asked questions
What profile do iPhone photos use?
Usually Display P3, a wider colour space than sRGB. This page reads the actual profile so you do not have to guess.
What is nclx?
A compact way of describing colour space in the container when there is no full ICC profile.
Can this change the profile?
No. The converters handle that.