Convert WEBP to AVIF online in seconds — free, with no sign-up. AVIF is mixed and ideal for the smallest high-quality web images, with a JPEG/WebP fallback. Your files are encrypted and deleted automatically after 24 hours.
WEBP
WebP — A modern Google format with both lossy and lossless modes, ~25–35% smaller than JPEG at equal quality.
AVIF
AV1 Image File Format — A next-gen format built on the AV1 codec, 40–60% smaller than JPEG with HDR and transparency.
How to convert WEBP to AVIF
- 1Upload your WEBP file
Click “Choose a file” or drag and drop your WEBP file onto the page — no sign-up or email needed.
- 2Convert to AVIF
AVIF is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your AVIF file
Your AVIF file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
WEBP vs AVIF
| WEBP | AVIF | |
|---|---|---|
| Full name | WebP | AV1 Image File Format |
| Type | Raster image | Raster image |
| Compression | Mixed | Mixed |
| Best for | fast-loading web images; supported by ~96% of browsers | the smallest high-quality web images, with a JPEG/WebP fallback |
Frequently asked questions
Does converting WEBP to AVIF lose quality?
Both WEBP and AVIF use compression, so re-encoding discards a little more data. For a single conversion the change is virtually invisible; just avoid repeatedly re-converting the same file.
What's the difference between WEBP and AVIF?
WebP (WEBP) is mixed and best for fast-loading web images; supported by ~96% of browsers. AV1 Image File Format (AVIF) is mixed and best for the smallest high-quality web images, with a JPEG/WebP fallback. Convert WEBP to AVIF when you need a raster image for the smallest high-quality web images.
Is the WEBP to AVIF converter free?
Yes — converting WEBP to AVIF is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my WEBP files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert WEBP to AVIF on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert WEBP to AVIF?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert WEBP files to?
Besides AVIF, you can convert WEBP to BMP, GIF, ICO, JPG, PDF, PNG and more — see the full list of WEBP conversions below.
Other conversions
Last updated July 2026