How to convert AVIF to WebP
- Select Choose files, or drop AVIF images on the box. You can add many at once.
- Leave the quality at 90 percent, or move the slider down for a smaller file.
- Select Download, or Download all for a ZIP. Names end in
.webp.
Why convert AVIF to WebP
AVIF files are small but not every editor, CMS or older phone opens them. WebP has been supported by every major browser for years and is accepted by far more upload fields, so many people convert AVIF to WebP to keep a small file while gaining compatibility.
What is kept and what changes
Both formats are lossy and support transparency. Converting is a re-encode, so the picture is saved a second time at the quality you choose (90 percent by default). A very high setting keeps the look but the file can end up larger than the AVIF, because AVIF is usually more efficient at the same quality.
Quality and file size
The quality slider runs from 50 to 100 percent. At the default 90 percent a photo usually looks the same as the AVIF on a normal screen. At 75 percent the file shrinks noticeably, and you may spot softness in skies and skin. Check one file first, then convert the batch. Everything is decoded and re-encoded locally, and AVIF files that your browser cannot open directly use a built-in decoder.
When to use it
Use this when a site rejects AVIF but takes WebP, or when you want to edit an AVIF in a tool that does not read it. If you need the widest possible support, AVIF to JPG is safer, and AVIF to PNG is the choice when you need a lossless copy.
Tips
- Keep the original AVIF. Each re-encode loses a little detail.
- Alpha transparency is preserved, so logos stay see-through.
- Check the file size afterwards. WebP may be larger than the AVIF you started with.
Your files stay on your device. Nothing is uploaded, and there is no sign-up.