buncha/image/png-to-avif

PNG to AVIF

PNG to AVIF Converter

Convert PNGs — including transparent assets — to AVIF, the smallest modern image format. Alpha channel preserved. Drag a batch, conversion runs in your browser.

Bulk Image Converter

Convert images between JPG, PNG, WebP, AVIF, BMP, and HEIC. Up to 100 files at once. All processing happens in your browser — your files are never uploaded.

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Drop images here or click to select

Files are processed in your browser. Nothing uploaded.

Need more than a format change?

Open the result in the buncha editor

Crop & resize Filter, curves, HSL Watermark AI bg remove, magic erase

Why convert PNG to AVIF?

PNG is the lossless king for design assets, logos and UI screenshots, but the file sizes are heavy once you ship the asset to the web. AVIF supports transparency natively and compresses much harder than PNG — a 600 KB transparent marketing PNG often comes out at 80–150 KB as AVIF, with the alpha channel intact and the visual quality preserved.

Modern browsers all render AVIF, so for site assets, PWAs and mobile apps the conversion is mostly free bandwidth. Keep the PNG copies in your design source tree — AVIF is the ship-to-the-web target. Don't convert when the recipient is Microsoft Office, an older email client, or any tool that hasn't caught up with AVIF yet.

How to convert PNG to AVIF

Drop your PNG files into the upload area above
Pick a quality preset if avif supports it
Click Convert — every file processes locally on your device
Download a single file or a ZIP of the lot

Are my files uploaded anywhere?

No. Conversion runs in your browser using JavaScript and the Canvas API. Your files never leave your device. You can disconnect from the internet after this page loads and the tool will still work — try it and see.

Looking for something else? use WebP if you need broader software compatibility.

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About PNG to AVIF

Convert PNG images to AVIF with transparency preserved. The smallest modern image format. No upload.

Like every tool on Buncha, this one runs entirely in your browser. There's no upload, no log, no record of what you've pasted or generated. Close the tab and the data is gone.

↳ Have feedback or found a bug? hello@buncha.tools