Convert HEIC to AVIF
Convert iPhone HEIC photos to AVIF for modern delivery pipelines that prioritize smaller transfer size.
Source Images Stay Local
85%
Drag & drop your images here
or click to browse, or paste (Ctrl+V)
Supports HEIC, HEIF, WebP, PNG, JPG, AVIF, BMP
How to Convert HEIC to AVIF
1
Drag and drop your HEIC files into the box above, or click to browse.
2
Files are converted to AVIF instantly in your browser.
3
Download individual files or use Download All for batch output.
Known limitations
Before converting, note these constraints:
- Output behavior follows format capabilities (for example transparency support and lossy/lossless rules).
- Final file size depends on source image content and selected quality settings.
- If compatibility is critical, choose broadly supported targets first (typically JPG).
Frequently Asked Questions
Why convert HEIC to AVIF?
AVIF uses AV1-based compression and delivers smaller transfer sizes in modern web workflows.
Should I use JPG instead?
Use JPG when you need maximum compatibility with legacy apps and services.
Why is the output file sometimes larger than the original?
Output can grow when a lossy source is written to lossless PNG, when codec or container overhead dominates a small image, or when the source is already efficiently compressed. Results depend on the image, format, and settings; no fixed saving is guaranteed. PicShift uses MozJPEG, OxiPNG, and libwebp-based workflows, but those implementation choices do not guarantee the smallest possible file. In compress mode, PicShift keeps the original when the generated result is larger. Learn more: https://picshift.app/docs/size-increase-explainer