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.
AVIF offers even better compression than HEIC with broader web support. Ideal for optimizing iPhone photos for the web.
Download and open Picmal on your Mac.
Drag and drop your HEIC files or entire folders into Picmal.
Choose AVIF as the output format and click Convert.
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
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
Something not covered here? Write to support@picmal.app
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.
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.
Yes. Picmal supports batch conversion — drag and drop hundreds of HEIC files or entire folders and convert them all to AVIF at once.
Picmal requires a one-time purchase of $39 — no subscription. You can download the app to try the interface, but a license is needed to convert files. 14-day money-back guarantee.
If you don't need to change formats, Picmal can also compress your files to reduce size:
One-time purchase · No subscription · 14-day money-back guarantee