PixverterThe short answer
AVIF usually produces smaller files than WebP at the same quality, especially for photos, but it is slower to encode and still unsupported in many desktop apps and upload forms. WebP is the pragmatic default for websites today; AVIF is worth it when every kilobyte counts.
Choose AVIF when…
- You want the smallest possible images on a modern website.
- Your build tools or CDN generate AVIF automatically.
Choose WebP when…
- You need broad compatibility with apps, CMSs and editors.
- You want quick, simple conversion.
How to convert AVIF to WebP
- Drop your AVIF files into the converter above.
- Pick the output format: it is preset to WEBP.
- Download the converted files.
AVIF vs WebP at a glance
| AVIF | WebP | |
|---|---|---|
| Full name | AV1 Image File Format | WebP (Google) |
| Compression | both | both |
| Transparency | Yes | Yes |
| Animation | Yes | Yes |
| Compatibility | Recent versions of Chrome, Edge, Firefox and Safari; limited support in desktop apps | All modern browsers; some older desktop apps and upload forms still reject it |
| Best for | highly compressed images on modern websites | websites and online stores, where smaller images mean faster pages |
Frequently asked questions
Why can't I open an AVIF file?
Many image viewers and editors don't support AVIF yet. Convert it to JPG, PNG or WebP with the converter on this page.
Can Pixverter create AVIF files?
Not yet. Pixverter reads AVIF and converts it to JPG, PNG or WebP.
Are my photos uploaded anywhere?
No. Pixverter processes every image inside your browser, on your own device. Nothing is sent to a server, so it is safe for personal photos and documents.