AVIF to WEBP converter
Convert AVIF to WEBP in seconds, free and unlimited. No upload, no sign-up, no watermark: your image never leaves your device.
Last updated
Quick answer: To convert AVIF to WEBP, add the AVIF file to the iHateFiles AVIF to WEBP converter and press Convert. The conversion runs in your browser, so the file is never uploaded, and it is free with no sign-up, watermark or size limit. A straight swap between two raster formats, at full resolution.
Should you convert AVIF to WEBP?
A safe conversion: AVIF and WEBP are both lossless, so this is a change of container rather than a change to the picture.
Both AVIF and WEBP are lossy
Going from AVIF to WEBP re-encodes material that has already been compressed once, so the WEBP encoder is working from the AVIF artefacts rather than the original. Set the quality high: this is the one conversion where being generous costs little and being mean shows immediately.
AVIF and WEBP side by side
| AVIF | WEBP | |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Written here | Yes | Yes |
What usually goes wrong
About the AVIF. Reading AVIF is nearly universal; writing it is not. A browser without an encoder quietly hands back a PNG instead of refusing, so the conversion looks as though it worked. Current Chrome on macOS is one of them. This site checks for a real encoder first and says so when there is none.
About the WEBP. A WEBP renamed to .jpg still fails validation, because uploaders read the first bytes of the file rather than the name. Convert it properly.
How to convert AVIF to WEBP
- Add your AVIF file. It is read from your disk and stays there.
- Check the settings. The output format is already set to WEBP.
- Press convert and the WEBP file is saved back to your device.
Questions
How do I convert AVIF to WEBP?
Open this page, add your AVIF file, and press convert. The file is decoded and re-encoded by your own browser and saved back to your device. Nothing is uploaded.
Is this AVIF to WEBP converter free?
Yes, completely. There is no account, no sign-in, no watermark and no daily limit, because there is no server doing the work. Your own device does it.
Are my files uploaded anywhere?
No. There is no upload endpoint. The conversion runs inside this browser tab, so your file never leaves your device. You can open your browser's network panel and watch: nothing carrying your file is sent.
Is there a file size limit?
No fixed limit. Because the work happens on your machine there is no server quota. The only ceiling is your own device's memory, which for video means very large files may be slow.
Will converting to WEBP lose quality?
WEBP is a lossy format, so some detail is discarded. The quality control on this page decides how much. The default is set high enough that most people cannot see the difference.
Can I convert several AVIF files at once?
Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.