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WebP to AVIF converter
Free WebP to AVIF converter in your browser. Files stay on this device. Nothing is uploaded.
Drop images here
or click to choose. Paste works too.
Files never leave this device. Conversion runs in your browser.
Why convert WebP to AVIF?
WebP is lossy (web delivery when you want smaller files with alpha support). AVIF is lossy (cutting-edge web images when browser support is acceptable). Converting WebP to AVIF remaps pixels into the target container in your browser.
What changes in the file
- Both formats are lossy; a fresh encode may change fine detail and file size
- Transparency is supported in the AVIF output
- You can resize, adjust quality where relevant, and strip EXIF on export
- Conversion runs on this device — the file is not uploaded
How to convert WebP to AVIF
- Drop one or more WebP files onto the converter (or pick them from disk).
- Confirm the output is set to AVIF, then adjust quality, size, or metadata if needed.
- Download the converted AVIF file — processing never left your browser.
About WebP
WebP is a modern web image format from Google. It can encode lossy or lossless images and supports transparency, often beating JPG and PNG on size at similar visual quality.
About AVIF
AVIF is a next-generation image format based on the AV1 video codec. It typically yields smaller files than WebP or JPG at similar quality and supports transparency and high bit depth.
Common questions
Is this WebP to AVIF converter free?
Yes. Formatly converts WebP to AVIF in the browser at no charge and without an account.
Do you upload my WebP files?
No. Decoding and encoding run locally with browser APIs and WebAssembly codecs when needed. Files stay on this device.
Will converting WebP to AVIF reduce quality?
AVIF is lossy, so you trade some detail for smaller files. Use a higher quality setting when fidelity matters.