Convert PNG to AVIF Online — Free
Runs 100% in your browser — your files never leave your device.
PNGs are heavy; AVIF delivers the same picture at a fraction of the size, with transparency support. Where your browser can encode AVIF, this tool produces it locally and tells you plainly when it cannot. Nothing is uploaded.
How it works
- 1
Drop your PNG file
Drag a PNG into the box, or click to browse. Nothing is uploaded.
- 2
Convert to AVIF
The image is encoded as AVIF if your browser supports it.
- 3
Download the result
Save the AVIF with one click, or drop another file to convert.
About this tool
Converting PNG to AVIF
A PNG file png stores every pixel losslessly and supports full transparency, which makes it the standard for screenshots, logos, and graphics — at the cost of larger files for photographs.. AVIF avif is the newest of the modern formats — the best compression of any widely supported image format, with growing but still uneven tool support.. Converting moves your image from the first set of trade-offs to the second: file size shifts with the format's compression style, transparency survives where supported, and pixel data is re-mapped to the target format exactly.
What to check after converting
Open the result and check the two things conversion can change: transparency and size. Transparency is carried over exactly where the target format supports it. AVIF compresses lossily, so this conversion re-encodes your image — reasonable settings keep the difference invisible, extreme ones do not. Your original file stays untouched on your device either way, and the download is a brand-new file.
Frequently asked questions
Will converting to AVIF reduce the quality?
Some re-encoding is inevitable — AVIF compresses lossily. At default settings the difference is invisible; only extreme sizes or repeated re-saves produce visible artifacts. Your original file always stays untouched.
Is my image uploaded anywhere?
No — the conversion runs entirely in your browser. The image is processed on your device and never sent to any server, which you can verify by disconnecting after the page loads.
Why convert PNG to AVIF instead of the other way around?
The direction follows what the destination needs: cutting-edge web compression versus graphics, screenshots, and anything needing transparency. Converting back is always available — but each lossy hop re-encodes the image, so keep the highest-quality format as your working copy and convert toward the destination.