HEIC BASICS · UPDATED SEPTEMBER 16, 2026
What is a HEIC file?
A HEIC file is an image stored in the High Efficiency Image File Format (HEIF), typically with HEVC compression. It is a common format for iPhone photos. The .heic ending identifies the file format; it does not mean the photo is broken or needs conversion.
HEIC, HEIF, and HEVC: what is the difference?
HEIF describes the container that holds image data and related information. HEVC is the compression used for typical HEIC images. A container can hold more than one image as well as metadata; it is not necessarily just a grid of visible pixels. For the technical distinction, see Nokia’s HEIF format overview.
Why are my iPhone photos HEIC?
Apple supports HEIF for efficient photo storage. On compatible iPhones, the Camera → Formats → High Efficiency setting uses it; Most Compatible selects JPEG for new photos. This setting does not convert your existing library. Apple explains the options and supported devices in its HEIF and HEVC guide.
How do I open a HEIC file?
Supported Apple devices can open HEIF in their photo apps. Windows may need additional format and codec support: follow our Windows opening guide. If the file already opens in your chosen app, conversion is optional. Renaming .heic to .jpg changes the name, not the encoded image, and is not a conversion.
When should I make a JPG or PNG copy?
- For an app or recipient that needs JPG: use HEIC to JPG. Keep the HEIC original for your archive.
- For a destination that specifically requests PNG: use HEIC to PNG. PNG avoids another lossy encoding step after decoding, but cannot restore lost detail and may be much larger.
- For an upload limit: select under 1MB, under 2MB, or under 5MB according to the destination’s requirement. Check the final byte count and dimensions.
What changes when PicPropper converts a HEIC?
PicPropper decodes the primary still image and creates a new 8-bit image on your device. It does not upload your selected photos to a conversion server. The output does not copy source EXIF, GPS, dates, or comments, and does not preserve HDR gain maps, depth data, wide-color profiles, or associated video. A converted copy is not a complete archival replacement.
JPG encoding can lose detail, and a file-size cap may reduce dimensions. A converted JPG can also be bigger than its HEIC source. Read HEIC vs JPG for the format tradeoffs and our privacy explanation for how local processing works.
Do I need to delete the original?
No. Keep the original and use the converted copy for the task that needs it. Inspect the copy’s orientation, colors, fine detail, and file size before sending it elsewhere.