Can I convert WebP to AVIF on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert WebP to AVIF on your phone or computer without installing an app.

Is there a free WebP to AVIF converter with no sign-up?

Yes, this one. Converting WebP to AVIF on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert WebP to AVIF without losing quality?

AVIF is a lossy format, but our default quality setting (85) keeps the result visually identical to the original. Turn quality up in the options for maximum detail, or down for a smaller file.

Will the transparent background survive converting WebP to AVIF?

Yes. Transparency is supported in both formats and is preserved exactly.

Can I batch convert WebP to AVIF?

Yes. Add up to 30 WebP files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload WebP files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

WebP to AVIF Converter

Convert WebP images to AVIF online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your WebP files onto the converter
2
Press Convert to turn them into AVIF
3
Download your AVIF images one by one or as a ZIP

WebP to AVIF

Why convert WebP to AVIF?

WebP and AVIF are both lossy or lossless formats. AVIF is the usual choice for the smallest high-quality images for the web.

Transparent areas stay transparent

WebP and AVIF both handle transparency, so anything see-through in the original is still see-through after conversion.

Lighter images for your website

At the same visual quality, AVIF files are noticeably smaller than JPG or PNG. Lighter images mean faster pages, better Core Web Vitals and a small boost for SEO.

WebP vs AVIF: what's the difference?

Property	WebP	AVIF
Compression type	Lossy or lossless	Lossy or lossless
Transparent background	Yes	Yes
Animation	Yes	Yes
Where it opens	All modern browsers; some older apps and upload forms don't accept it	Chrome, Edge, Firefox and Safari 16+; many apps can't open it yet
Used for	Fast-loading website images	The smallest high-quality images for the web

What is a WebP file?

WebP is an image format Google introduced in 2010 to make websites load faster. It can compress photos lossily like JPG, or graphics losslessly like PNG - usually with 25-35% smaller files - and it supports transparency and animation too.

That's why so many images you save from websites, including Google Images, arrive as .webp files. Browsers love them; older software and many upload forms still don't.

How to open a WebP file

Chrome, Edge, Firefox and Safari display WebP directly - drag the file into a browser window. Windows 10/11 Photos and Paint and Mac Preview (Big Sur and later) open it as well. If an app or website rejects it, convert it to JPG or PNG.

Extension: .webp
Compression: Lossy or lossless
Transparency: Yes
Best for: Fast-loading website images

What is an AVIF file?

AVIF (AV1 Image File Format) is a modern image format based on the AV1 video codec, developed by the Alliance for Open Media - Google, Apple, Microsoft, Netflix and others. It typically produces smaller files than both JPG and WebP at the same visual quality.

AVIF supports transparency, HDR and wide color, which makes it a favorite for fast websites. Support outside browsers is still patchy, so downloaded AVIF files often need converting.

How to open an AVIF file

Chrome, Edge, Firefox and Safari 16+ display AVIF. Windows 11 opens it in Photos once the free AV1 Video Extension is installed; macOS Ventura and later preview it. For editors and forms that refuse it, convert to JPG or PNG.

Extension: .avif
Compression: Lossy or lossless (AV1)
Transparency: Yes
Best for: The smallest high-quality web images