Bulk HEIC to AVIF Converter
Creating AVIF delivery files from iPhone photos. Convert a batch locally, inspect the results and download a ZIP.
A little less weight. A lot more room.
Good images. Less baggage.
Drop your images here, or choose a batch from your device.
Your next batch starts here.
Preview, rename and download. All in one place.
Turn HEIC and HEIF phone photos into genuine AVIF exports without uploading the photo. The local HEIC decoder first creates PNG pixels, then a local AVIF encoder creates the download. This can take longer than a JPEG export, especially at original phone resolution. The initial quality is 92%, with no resize selected.
How it works
- Choose the HEIC images needed for your AVIF workflow.
- The page starts at original dimensions with AVIF output locked. Adjust dimensions or quality when needed, then use Apply & re-compress for existing files.
- Compare the ready preview with the original and download individual AVIF files or the batch ZIP.
Tool comparison: HEIC and AVIF
| Feature | HEIC | AVIF |
|---|---|---|
| Workflow | HEIC source files | Creating AVIF delivery files from iPhone photos |
| Background and alpha | Depends on the source image | A decoded still photo is encoded as AVIF |
| Resolution | Original decoded dimensions | Original dimensions initially; resizing is optional |
Frequently asked questions
Why can HEIC to AVIF take longer on first use?
Both the HEIC preparation step and the AVIF encoder may need to load. Later jobs can reuse loaded code, but decoding large photos and AVIF encoding still use local CPU and memory.
Can I use this as an archival HEIC replacement?
Keep the original HEIC as your archive. The AVIF export uses decoded web pixels and your chosen quality; original camera metadata, HDR precision, depth information and motion are not retained.
Are my HEIC images uploaded for conversion?
No. The converter decodes, encodes and creates ZIP downloads on your device. Large images and batches still need sufficient local memory.
Can I rename all my AVIF downloads?
Yes. Keep original names, add a prefix, or choose a custom name plus number. The rule applies to individual downloads and the ZIP. Downloaded files use the actual exported format's extension.