PNG to AVIF
WEBConvert PNG images to AVIF online — free, fast and private. Your files never leave your browser. Nothing is uploaded.
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What is the PNG to AVIF tool?
PNG to AVIF shrinks your PNG images into the web's most efficient format — free, in your browser, with nothing uploaded to a server. AVIF is the compression king of current image formats: for photographic content it typically lands around half the size of an equivalent JPG, and dramatically smaller than a lossless PNG, at the same visual quality. If you're optimising a website, that difference shows up directly in page speed and Core Web Vitals.
Transparency makes this pair especially useful. PNG is the standard for logos, UI graphics and cut-out images precisely because of its alpha channel — and AVIF keeps it. You get a transparent, web-ready image at a fraction of the PNG's weight, with a quality slider to tune how aggressive the compression is. Drop in a batch and the converted files download together as one zip.
The encoding happens on your device: your browser decodes the PNG and encodes the AVIF locally, so your images never leave your machine — no sign-up, no watermark, no daily quota, no API key. One honest note: in-browser AVIF encoding depends on your browser's canvas support — Chromium browsers (Chrome, Edge) handle it reliably, while some others may not; if yours can't, WebP is the closest alternative via the PNG to WebP converter. To go back the other way, use AVIF to PNG.
How to use the PNG to AVIF
- Open the PNG to AVIF converter — From is preset to PNG and the target to AVIF.
- Click «Choose images» or drop your .png files into the drop zone; batches are fine.
- Set the quality slider — lower values shrink harder, higher values keep more detail.
- Press «Convert» — your browser encodes the AVIF locally, nothing is uploaded.
- The AVIF downloads automatically; multiple images arrive together as a single zip.
- Compare the new file size with the original — for photos the drop is usually dramatic.
Frequently asked questions
Is AVIF better than PNG?
For delivering images on the web, usually yes — AVIF files are far smaller at visually identical quality, and transparency is preserved. PNG remains better as a lossless master copy for editing. A common workflow is: keep the PNG source, serve the AVIF.
Which browsers support AVIF?
All current major browsers display AVIF — Chrome, Edge, Firefox and Safari 16 or newer. Very old browser versions don't, so sites that must support them usually serve AVIF with a JPG or WebP fallback via the picture element.
Is the conversion lossy or lossless?
The AVIF produced here is lossy, controlled by the quality slider — that's where the huge size savings come from. At high settings the loss is invisible for most images. If you need a pixel-perfect copy, keep the PNG original.
Does AVIF keep my PNG's transparency?
Yes. AVIF supports an alpha channel, so transparent backgrounds and semi-transparent edges in your PNG survive the conversion intact.
Are my images uploaded during the conversion?
No. Decoding and AVIF encoding run entirely inside your browser on your device. Your files are never sent to any server.
Is this free? Are there file limits?
Yes — free, no sign-up, no watermark, no daily cap. Because processing is local, only your device's memory constrains very large batches.
What if my browser can't encode AVIF?
Canvas AVIF encoding is reliable in Chromium browsers like Chrome and Edge; some other browsers may fail to encode even though they can display AVIF. If conversion fails, try a Chromium browser or convert to WebP instead — it's almost as compact.
