About the HEIC to AVIF
iPhones save photos as HEIC, a format many websites, forms and Windows programs cannot open. AVIF is a modern web format built on the same idea, with the huge benefit that browsers display it everywhere. This tool decodes your HEIC photos in the browser and saves them as AVIF at a quality you choose, with the correct orientation. You can convert many photos at once and download a ZIP. Nothing is uploaded: the HEIC decoder and the AVIF encoder both run on your own device.
Updated October 2026
How to use the HEIC to AVIF
- 1Select your HEIC photos or drop them onto the page.
- 2Pick a quality. 60% is plenty for web use; go higher for prints.
- 3Wait while each photo is decoded and saved. Large photos take a few seconds.
- 4Download single AVIF files or press Download all for a ZIP.
- 5Open one result in your browser to check it looks right.
HEIC and AVIF in plain words
HEIC is the container Apple uses with the HEVC video codec; AVIF uses the AV1 codec in a very similar container. Both are efficient, but HEIC is licensed and rarely supported outside Apple devices. AVIF is free to use and every major browser opens it.
Typical results
A 12-megapixel iPhone photo of about 2 MB as HEIC typically becomes 1 to 2 MB as AVIF at 60 percent, depending on detail. The point of this tool is not to be smaller than HEIC, but to be a format that websites and non-Apple tools accept.
- For websites: AVIF, with JPG fallback
- For sharing with anyone: JPG
- For archiving: keep the HEIC original
Choosing a quality
iPhone photos are already well compressed. Starting at 60 gives a clean web picture; 75 to 80 suits detailed landscapes and prints. If you see banding in skies, raise the quality.
Phone and computer
On an iPhone, choose files from Photos or Files and the browser hands them to the tool. Make sure Most Compatible is not set on the camera if you only need JPG; this tool is for HEIC you already have. On a computer, drop a whole folder.
Good to know
HEIC decoding and AVIF encoding both take real work, so very large photos or big batches take a while on a phone. The tool runs through photos one by one to keep your device responsive, and it never uploads anything.
When to keep the HEIC
Keep your HEIC originals as the master copy. They hold the full photo, the date and location, and Apple apps edit them without losing quality. Use the AVIF copies for uploading to a website, a listing or an online profile. If a site asks for JPG only, use HEIC to JPG instead; AVIF is for places that accept it. For the common photo type, use HEIC to JPG, and for a document use HEIC to PDF. For a different file type use JPG to AVIF, and HEIC to PDF puts the photo into a document.
Features
- Decodes real HEIC and HEIF photos
- Correct rotation of portrait shots
- Bulk conversion with a ZIP
- Quality slider
- Shows the size of each result
- No upload
Frequently asked questions
Why convert HEIC to AVIF instead of JPG?
JPG opens everywhere, but AVIF is smaller. If your photos are for a website or an app that supports AVIF, you save space and loading time. For maximum compatibility with older tools, use HEIC to JPG instead.
Will my photos come out the right way up?
Yes. The rotation and mirroring stored in the HEIC are applied, so portrait pictures are not sideways.
Do I lose the location and camera details?
Yes. The AVIF holds the picture only, so GPS and camera data are not copied. Remove nothing yourself; it is already left out.
Does it work with Live Photos or burst shots?
Only the main still picture is used. The short video of a Live Photo is not included.
What if a file is not really HEIC?
The row says so in plain words. Files that are really JPG or PNG are still converted, and the note tells you what they were.
Is anything uploaded?
No. Decoding and encoding both happen in your browser, so photos stay on your device.