Private browser tool

Convert WebP to AVIF

Re-encode a WebP image as modern AVIF with control over quality, dimensions, and file size. Your image stays in your browser.

AVIF Choose a WebP image or drag and drop it here

One WebP image at a time

Output format: AVIF

AVIF quality 75%

Resize (optional)

WidthHeight

Lock aspect ratio Do not enlarge the image

Target maximum size (optional)

Quality is adjusted automatically when set. Output filename

The AVIF is newly encoded without the source metadata. An animated WebP becomes one still AVIF using the displayed frame.

WebP conversion guide

How to convert WebP to AVIF

Choose a WebP, adjust the AVIF settings, and download the converted still image when browser encoding is supported.

Select an image from your device or drag it into the upload area.

Choose quality, dimensions, and an optional maximum file size.

Review the preview and file size, then save the converted image.

This free online WebP to AVIF converter includes the following controls and output tools:

Private browser conversion. The image is processed locally and is not uploaded.
Custom dimensions. Set an exact width and height, lock the aspect ratio, and prevent accidental enlargement.
Quality and file-size controls. Set AVIF quality or enter a maximum size in KB to find the highest quality that fits.
Before-and-after preview. Review the original and converted image, output dimensions, format, and file size.
File-size comparison. See the original and converted sizes and the percentage change.
Custom filename. Rename the converted file before downloading it.
Metadata-free export. The newly encoded AVIF does not copy source metadata.

AVIF may offer a smaller result for some images, although WebP is already efficient and conversion is not guaranteed to reduce size.

Both are modern web formats. Compare output quality and size rather than assuming one format is always better.

An animated WebP becomes one still AVIF using the frame displayed by the browser. Transparent pixels are retained when supported.

AVIF encoding availability varies by browser. Re-encoding can add quality loss, and source metadata is not copied.

Is this WebP to AVIF converter free?

Yes. Convert one WebP at a time without an account.

Will animation remain?

No. This tool creates one still AVIF from the displayed WebP frame.

Will AVIF be smaller?

Sometimes, but the result depends on image content and the two quality settings.

Why can AVIF export fail?

Your browser may not provide an AVIF encoder.

Will transparency remain?

Transparent pixels are retained when supported by the browser encoder.

Use the full converter for HEIC, PNG, WebP, JPG, GIF, TIFF, BMP, AVIF, and more.