PNG to AVIF converter
Convert PNG files to AVIF right in your browser. Nothing is uploaded, so your images stay on your device, and it's free.
Why Convert PNG to AVIF?
Converting PNG to AVIF is a common requirement for modern web and document workflows. Next-generation formats like AVIF provide vastly superior compression rates compared to older formats. Upgrading to AVIF is the #1 way to make your websites load instantly and dramatically improve performance metrics without sacrificing visual fidelity.
| Feature | PNG | AVIF |
|---|---|---|
| Compression | Lossless | Both |
| Transparency | Yes | Yes |
| File Size | Large | Small |
| Browser Support | Universal | Modern only |
Most online conversion services force you to upload your sensitive files to their remote servers, wait in a queue, and then download the result. This exposes your privacy and is severely bottlenecked by your internet upload speed. FileFlux is different. We utilize cutting-edge browser technologies like WebAssembly (WASM) to securely perform the entire conversion process directly inside your own computer's memory. Your files literally never leave your device.
How to use PNG to AVIF
- 01
Choose or drop your PNG files.
- 02
FileFlux converts them to AVIF right away. Compare before and after to check the quality.
- 03
Download them one by one or all at once as a zip.
Questions
Are my PNG files uploaded?
No. The conversion runs in your browser and nothing is sent to a server. The "Sent to servers" counter on the page stays at 0 B.
Will the AVIF lose quality?
At the default quality the difference is hard to see. Use the compare slider to check, and raise the quality if you need more detail.
Can I convert several PNG files at once?
Yes. Add up to 20 files at a time and download them one by one or as a single zip.