How to convert WebP to AVIF
- Drag your WebP files into the box above or click “Choose files” (folders and pasting from the clipboard work too).
- AVIF is preselected as the output format; adjust quality, size and target file size if you like.
- Press “Start converting”; files are converted in your browser, in parallel.
- Download the files one by one or grab them all as a ZIP.
Why convert WebP to AVIF?
AVIF offers one of the best compression ratios of the common formats and can cut page weight sharply, especially for high-resolution photos.
Animated WebP files stay animated only when the output is GIF; for other formats the first frame is used.
WebP may be animated; because AVIF does not support animation, only the first frame is converted.
WebP vs AVIF
| WebP | AVIF | |
|---|---|---|
| File extension | .webp | .avif |
| Compression | Lossy + lossless | Lossy + lossless |
| Transparency | Yes | Yes |
| Animation | Yes | Limited |
| Typical file size | Very small | Smallest |
| Support | All modern browsers | Current browsers |
| Best for | websites, blog images, smaller replacements for JPG and PNG | bandwidth-sensitive web pages and high-resolution photographs |
WebP is a modern format from Google that offers lossy and lossless compression, transparency and animation. AVIF is a next-generation format based on the AV1 video codec; at equal visual quality it is usually smaller than JPG and WebP. Encoding is slow and older devices or software may not support it.
Tips for the best results
- For most photos a quality of 80–85 is visually indistinguishable while making the file much smaller. If you have a size limit, use the “Target file size” option.
- For the web, limiting the width to 1600 pixels cuts file size a lot while keeping visual quality (Resize section).
- Metadata such as GPS location and camera details (EXIF) is always removed from the output.
Privacy and security
Conversion runs entirely in your browser (using WebAssembly); your images are never uploaded to our server and never leave your device. The server only receives anonymous counters that contain no file names or content (source/target format, size, duration). Metadata such as location and camera details is always stripped from the output.