BriskFile

Convert PNG to AVIF

Drop your PNG files below. They are converted on your own device and never sent anywhere.

Convert to AVIF for website images where the bandwidth saving is worth several seconds of encoding, and where a fallback source is available. It is converted by your own browser here, so the file is never uploaded.

Nothing is uploaded. Your files are read by this page and processed by your own processor. Open the Network tab and watch — you will not see them leave.

PNG and AVIF, and why you would move between them

For a PNG that is going on a website, AVIF is usually the largest single saving available. A photographic PNG can drop by 90% or more; even a graphic with flat colour and transparency typically halves against an optimised PNG, because AVIF handles both alpha and flat regions well.

The trade is encoding time and software support. Encoding takes seconds rather than milliseconds, and outside browsers a good deal of software still cannot read AVIF. For images you encode once and serve millions of times, that is an easy trade; for anything else it is worth thinking about.

Things that catch people out

  • AVIF encoding is slow. A large PNG can take several seconds, and higher effort settings take considerably longer.
  • AVIF supports transparency well, but lossy mode can soften a hard-edged cutout very slightly. Check logos and icons at full size before shipping.
  • For small icons and simple graphics, an optimised PNG or lossless WebP can still win. AVIF has container overhead that a 32×32 icon cannot amortise.

Related conversions

Questions

Does AVIF support transparency?

Yes, including partial transparency, and it compresses the alpha channel efficiently. That makes it a genuine replacement for transparent PNGs rather than a photo-only format.

Will AVIF work in every browser?

In every current one, yes — Chrome, Firefox, Safari and Edge all support it. Serve it inside a <picture> element with a WebP or JPEG fallback to cover older versions and non-browser software.

What BriskFile will not do to you

  • Your files never leave your device

    Every conversion runs in your browser. Open DevTools, watch the Network tab, and you will see no upload — because there is not one.

  • No account, no email, no watermark

    Nothing to sign up for and nothing stamped on your images. There is no step between choosing a file and getting it back.

  • No limits at the download button

    No daily cap, no file counter, no "upgrade to download". If the tool starts a job, it finishes it.

  • Checkable, not just claimed

    Open the Network tab and convert something — nothing goes out. Or load the page, disconnect, and watch it keep working: the tool is already on your machine, and your file never leaves it.