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Image Tools
HEIF to AVIF Converter
Convert HEIF images to AVIF online, free. Choose files, convert in your browser, then download your images. No server upload.
Output format
Your output format
Fixed to AVIF for this converter.
Images
Add HEIF images
Drop HEIF images here
Drag & drop or click to browse
Select imagesHEIF files only
Your files are not uploaded to any server.
Up to 20 images · 20 MB each · 80 MB batch · 20 megapixels per image. Outputs contain one frame.
About HEIF to AVIF conversion
HEIF conversion depends on local codec support for the file. AVIF is encoded locally using WebAssembly; older devices may take longer. Your images are processed locally in this browser; metadata is not guaranteed to be retained.