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Image format

AVIF converter

An .avif file stores a still image (or sequence) coded with the AV1 video codec inside a HEIF-derived container. It is currently among the most efficient image formats deployed on the web, routinely beating JPEG by half at similar quality while adding HDR, wide gamut, and alpha.

Private for supported formats — processed in your browser

Convert supported files

Runs on your device

Drop AVIF files here

Batch files can each use a different output. Nothing uploads for local conversions.

Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.

Where AVIF comes from

The Alliance for Open Media, whose members include Google, Netflix, Mozilla, Apple, and Amazon, finalized the AVIF specification in 2019 as a royalty-free application of its AV1 codec. Netflix published the first public .avif images that year, and browser adoption rolled out from Chrome 85 in 2020 onward.

How AVIF works

  • Encodes AV1 intra frames; both lossy and a mathematically lossless mode are defined
  • Supports 8-, 10-, and 12-bit depth with HDR transfer functions (PQ, HLG) and wide color gamuts like BT.2020
  • Chroma subsampling is selectable: 4:4:4, 4:2:2, 4:2:0, or monochrome
  • Alpha is carried as an auxiliary image item in the ISO BMFF container
  • Film grain synthesis reproduces noise cheaply instead of encoding it pixel by pixel

When to use AVIF

  • Serving hero images and photo galleries where bandwidth savings are significant
  • Delivering HDR imagery to displays that support it
  • Replacing both JPEG and PNG in a modern web asset pipeline
  • Compressing screenshots with sharp text better than JPEG can

Strengths and limitations

Strengths

  • Best-in-class compression among widely supported web formats
  • 10/12-bit HDR and wide-gamut color, which JPEG cannot represent
  • Royalty-free with strong industry backing
  • Full alpha transparency

Limitations

  • Encoding is much slower than JPEG or WebP, especially at high effort settings
  • Very large dimensions may be split into tiles, and some decoders show seams or limits
  • Support outside browsers — older photo editors, printers, embedded devices — is still thin

Compatibility

Chrome 85+ (2020), Firefox 93+ (2021), and Safari 16+ (2022) render AVIF natively, covering the overwhelming majority of current browsers. On the desktop, macOS 13+ and Windows (via the AV1 Video Extension) preview it, but plenty of older editing and printing software cannot open it yet.

EXIF and XMP are stored as metadata items in the HEIF container alongside ICC profiles or CICP color signaling, and mainstream encoders preserve them on conversion.

Convert AVIF to another format

Convert other formats to AVIF