Convert HEIC to AVIF on Mac
AVIF offers even better compression than HEIC with broader web support. Ideal for optimizing iPhone photos for the web.
Trusted by 580+ Mac users
Why convert HEIC to AVIF?
- Convert HEIC to AVIF in seconds with batch processing
- All processing happens locally on your Mac — files never leave your device
- Drag and drop files or entire folders for instant conversion
- Reduce file sizes significantly with modern compression
How to convert HEIC to AVIF on Mac
Open Picmal
Download and open Picmal on your Mac.
Add your HEIC files
Drag and drop your HEIC files or entire folders into Picmal.
Select AVIF and convert
Choose AVIF as the output format and click Convert.
HEIC vs AVIF
HEIC
High Efficiency Image Container
Apple's default photo format since iOS 11. Based on the HEVC (H.265) codec standardized by ISO/IEC 23008-12, HEIC offers up to 50% better compression than JPEG at equivalent visual quality.
Best for
iPhone photos and Apple ecosystem storage
AVIF
AV1 Image File Format
Next-generation image format based on the royalty-free AV1 video codec developed by the Alliance for Open Media (AOMedia). Netflix's 2020 research showed AVIF achieves 50% better compression than JPEG at equivalent perceptual quality.
Best for
Web performance optimization and modern websites
Frequently asked questions
How do I convert HEIC to AVIF on Mac?
Open Picmal, drag and drop your HEIC files, select AVIF as the output format, and click Convert. Picmal processes everything locally on your Mac — no uploads needed.
Does converting HEIC to AVIF lose quality?
AVIF uses lossy compression, so there may be a slight quality reduction. Picmal lets you adjust the quality slider to find the right balance between file size and quality.
Can I batch convert multiple HEIC files to AVIF?
Yes. Picmal supports batch conversion — drag and drop hundreds of HEIC files or entire folders and convert them all to AVIF at once.
Is it free to convert HEIC to AVIF with Picmal?
Picmal requires a one-time purchase of $15.99 — no subscription. You can download the app to try the interface, but a license is needed to convert files. 14-day money-back guarantee.
Format standards & sources
- HEIC: Defined by ISO/IEC 23008-12 (MPEG-H Part 12). View specification →
- AVIF: Defined by ISO/IEC 23000-22 (Alliance for Open Media). View specification →
Need to compress instead?
If you don't need to change formats, Picmal can also compress your files to reduce size:
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Convert HEIC to AVIF with Picmal
One-time purchase · No subscription · 14-day money-back guarantee