This tool converts WEBP 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.
Batch Convert WEBP to AVIF Online
How does it convert to AVIF?
With this converter , you can convert one or multiple WEBP 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.webp , 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.
About WEBP files
WebP is a modern image format developed by Google, offering superior lossless and lossy compression for web graphics. It supports transparency (like PNG) and animation (like GIF), while typically producing smaller files than JPEG or PNG. Widely used on websites to improve loading speeds without sacrificing quality.
We support converting videos and animated images to animated WebP, as well as converting animated WebP back to formats like GIF and aPNG.
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.
