WEBPAVIF
WEBP to AVIF Converter
Convert WEBP images to AVIF in seconds. Your files are processed locally in your browser — nothing is uploaded.
- Animated images: only the first frame is converted.
Processed locally in your browser
Why convert WEBP to AVIF?
WebP is great for websites, but some older apps, editors and upload forms still do not accept it. AVIF offers the best compression of any widely supported format — often around half the size of JPG.
What changes when you convert WEBP to AVIF
- AVIF files are usually noticeably smaller than WEBP files for the same image.
- AVIF uses lossy compression. At the default quality (85) the difference is invisible for most images; raise it for maximum fidelity or lower it for smaller files.
- Transparency is preserved: AVIF supports an alpha channel.
- If your WEBP is animated, only the first frame is converted to AVIF.
How to convert WEBP to AVIF
- 1
Drop your WEBP files into the converter above, paste them, or click to choose files.
- 2
AVIF is already selected as the output format. Open Settings to adjust quality, size or metadata.
- 3
Click Convert. Each image is processed on your device in a moment.
- 4
Download your AVIF files one by one, or all together as a ZIP.
Private by design
This WEBP to AVIF converter runs entirely in your web browser using the same image engines that display web pages, plus WebAssembly encoders where needed. Your images are never uploaded for this conversion and nothing is stored.
WEBP to AVIF: questions & answers
Is converting WEBP to AVIF free?
Yes, completely free with no sign-up, no watermark and no daily limit.
Will I lose quality converting WEBP to AVIF?
AVIF is a lossy format, so a small amount of detail is traded for size. At quality 85–95 the difference is not visible for typical images. You can raise the quality in Settings.
Can I convert multiple WEBP files at once?
Yes. Drop as many files as you like; they are converted in parallel and can be downloaded individually or as a single ZIP.
Are my WEBP files uploaded?
No. The conversion runs locally in your browser, so your images never leave your device.
Does it work on iPhone and Android?
Yes. The converter works in current versions of Safari, Chrome, Firefox and Edge on phones, tablets and computers. Very large images may exceed the memory available to mobile browsers.
Is WebP better than JPEG?
For the web, usually yes: WebP produces smaller files at similar quality and adds transparency. JPEG remains the most compatible choice for sharing with arbitrary apps and devices.