What is a HEIF file?
High Efficiency Image Format files are common in image workflows. HEIF input uses an optional browser-side decoder. HEIF output needs an advanced encoder.
HEIF to AVIF Converter
Convert HEIF images to AVIF directly in your browser. Batch convert files, resize large images, tune quality, and download results without sending images to a server.
Upload HEIF images
Choose one file or batch convert several files in the browser.
Conversion settings
Choose output format, quality, and maximum dimensions.
Browser-native outputs are fastest. HEIC output, RAW, PSD, and PDF need an advanced engine.
Result
Choose an image to start.
Source-
Original-
Converted-
Change-
Batch results
0 files
How to convert HEIF to AVIF
- Choose HEIF files
Select one image or add several files for batch conversion.
- Set AVIF options
Adjust quality and maximum width before creating the output.
- Download results
Download files one by one or package the whole batch as a ZIP.
What is a AVIF file?
AV1 Image File Format files are useful for specific web, archive, or compatibility needs. AVIF can create very small web images, but browser encoding support varies.
Browser conversion limits
This page is optimized for lightweight local conversion. Complex animation, RAW decoding, PSD layers, PDF rendering, and HEIC output need a heavier engine.