Drop your HEIC file(s) here
You can add more than one file
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Converting HEIC to AVIF swaps one modern photo format for another. The two are close cousins, both wrapping a still picture in the same kind of container and squeezing it with a video codec, which is why both stay so small. What separates them is who accepts them.
A JPEG turned into AVIF usually halves. Coming from HEIC, expect very little, because the phone already compressed the photo about as efficiently as it can be done. If the result lands within a few percent of the original, that is the correct outcome rather than a failed conversion. You are buying reach here, not weight.
Chrome, Firefox, Edge and Safari all show AVIF. None of them show a HEIC. That is why a page full of iPhone originals looks broken to every visitor who is not on an Apple device, and why the same picture in AVIF simply arrives.
The photograph comes across at full resolution. The Live Photo clip does not, and neither does the depth map from portrait mode, so treat the AVIF as a delivery copy for the web rather than a replacement for the original shot.
This encoding is heavy work and photos are handled one after another. The first file also waits for the decoder to load before it starts, so a large batch is something to set going and come back to.
Displays where a HEIC cannot
Every current browser renders AVIF without a fallback image.
Full resolution kept
The photo arrives at the same pixel dimensions the phone shot it at.
Weight close to the original
AVIF holds a similar size to the HEIC while reaching far more software.
PNG to JPE Converter
Save PNG images as .jpe files, the short JPEG extension a few older programs insist on.
PNG to JIF Converter
Turn PNG images into .jif files for the software that still lists that spelling.
PNG to JFI Converter
Produce .jfi files from PNG images for systems that match on that exact extension.
PNG to DIB Converter
Write PNG images out as .dib bitmaps for Windows software that expects raw pixel data.
At the same file size they are close, with AVIF slightly ahead on flat areas like sky. Support is the real difference between them, not the picture.
If the photos are going somewhere old or unpredictable, yes. JPEG opens everywhere, at roughly double the file size for the same look.
HEIC is not offered as a target here, and there is little reason to want it outside Apple software.
The extra brightness range a phone screen shows is not carried through. Check one photo from a wide colour or HDR batch before converting the rest.