Home Image Convertor HEIF to AVIF

HEIF to AVIF

Batch Convert HEIF files to AVIF files for free online.HEIF to AVIF Converter for free.Also, you can resize the AVIF file , and custom output names and width/height.

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This tool converts HEIF to AVIF completely free and without any functional limitations. Since it is based on the browser API, the processing speed is the fastest because all files are processed locally on your device and are not uploaded to our server.
About HEIF files
HEIF (High Efficiency Image Format) is an open standard image format developed by the MPEG group, serving as the foundation for HEIC. It uses advanced compression algorithms to achieve significantly smaller file sizes than JPEG while maintaining superior image quality. HEIF supports multiple images, sequences, and metadata in a single file, making it ideal for burst photos and image collections. Compatible with various devices and platforms, it represents the future of efficient image storage.
About AVIF files
AVIF is a modern, royalty-free image format based on the AV1 video codec, offering superior lossy and lossless compression. It supports high dynamic range (HDR), wide color gamut, and transparency while achieving smaller file sizes than JPEG, PNG, or WebP. Ideal for high-quality web images and efficient media delivery. We support converting animated images to animated AVIF, and convert AVIF to animated WEBP , APNG and GIF.

Batch Convert HEIF to AVIF Online

How does it convert to AVIF?

With this converter , you can convert one or multiple HEIF file(s) to multiple sizes of AVIF files, and resize the AVIF files with width/height in the Options. Open the Options dialog , to set the new width and height as desired. You can also upload a directory for batch converting.

  • Save Name : You can set {name} , {width} , {height} to resize the new AVIF image files. If multiple files need to convert , you must set {width} and {height} tags to distinguish files of different sizes. {name} is same as the filename of the source file.
  • Width and Height : You can customize the width/height of AVIF files. The maximum of width/height is unlimited.
    • Example settings:
  • Save Name :

    {name}_{width}_{height} .avif

  • Width and Height

    1000 X 1000

  • Width and Height

    1500 X 1500

    • If you upload a pic.heif , 2 AVIF files will be converted and named as below :
  • pic_1000_1000.avif Width and Height: 1000x1000
  • pic_1500_1500.avif Width and Height: 1500 X 1500
  • Quality: You can set a value from 0 to 100 to control the quality of the converted AVIF file. A higher value means clearer images but larger file sizes. This feature can help reduce the AVIF image file size.
    • You can click Save All button to save them to a local directory without downloading.