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go-avif Build Status GoDoc

go-avif implements AVIF (AV1 Still Image File Format) encoder for Go using libaom, the high quality AV1 codec.


Make sure libaom is installed. On typical Linux distro just run:

Debian (and derivatives):

sudo apt-get install libaom-dev

RHEL (and derivatives):

sudo dnf install libaom-devel


To use go-avif in your Go code:

import ""

To install go-avif in your $GOPATH:

go get

For further details see GoDoc documentation.


package main

import (
	_ "image/jpeg"


func main() {
	if len(os.Args) != 3 {
		log.Fatalf("Usage: %s src.jpg dst.avif", os.Args[0])

	srcPath := os.Args[1]
	src, err := os.Open(srcPath)
	if err != nil {
		log.Fatalf("Can't open sorce file: %v", err)

	dstPath := os.Args[2]
	dst, err := os.Create(dstPath)
	if err != nil {
		log.Fatalf("Can't create destination file: %v", err)

	img, _, err := image.Decode(src)
	if err != nil {
		log.Fatalf("Can't decode source file: %v", err)

	err = avif.Encode(dst, img, nil)
	if err != nil {
		log.Fatalf("Can't encode source image: %v", err)

	log.Printf("Encoded AVIF at %s", dstPath)


go-avif comes with handy CLI utility avif. It supports encoding of JPEG and PNG files to AVIF:

# Compile and put avif binary to $GOPATH/bin
go get

# Encode JPEG to AVIF with default settings
avif -e cat.jpg -o kitty.avif

# Encode PNG with slowest speed
avif -e dog.png -o doggy.avif --best -q 15

# Lossless encoding
avif -e pig.png -o piggy.avif --lossless

# Show help
avif -h

Static 64-bit builds for Windows, macOS and Linux are available at releases page. They include latest libaom from git at the moment of build.


To display resulting AVIF files take a look at software listed here. E.g. use avif.js web viewer.


go-avif is licensed under CC0.