PNG to AVIF Converter

100% secure, free, and easy to use.

100% Browser-Based • Local Processing

Drag & Drop PNGs here

or click to browse files

Settings apply to new files or batch update.

Compare & Fine-Tune

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Original
Compressed
Privacy Focused

🔒 Local Processing. Your data never leaves your device.

Instant Results

🌐 Fully Client-Side. Runs instantly in your browser.

No Signup

⚡ No accounts. No hassle. Just open and use.

Browser Based

🚀 Works right in your browser. No installs, no downloads.

Overview

PNG to AVIF converts PNG images into AVIF, dramatically shrinking large PNGs while keeping transparency. Convert a batch with a quality slider and download as a ZIP — all in your browser, with an AVIF encoder that runs in the page itself.

PNGs are lossless and often large. AVIF can store the same image — including transparency — at a fraction of the size, which is a big win for web performance.

This runs entirely in your browser. Most browsers can show AVIF but can't make it, so the page brings its own encoder, fetched the first time you press convert. Your images never leave the device.

How to use it

Step 1: Add your PNG files — drag in or click to browse

Add your PNG files — drag in or click to browse.

Step 2: Set the quality — pick a quality level; transparency is preserved in the AVIF

Set the quality — pick a quality level; transparency is preserved in the AVIF.

Step 3: Convert and download — save each AVIF, or click Download All as ZIP

Convert and download — save each AVIF, or click Download All as ZIP.

Frequently Asked Questions

Does PNG to AVIF keep transparency?

Yes. AVIF supports an alpha channel, so transparent areas in your PNG are preserved in the AVIF. You get the same see-through background in a much smaller file.

How much smaller is AVIF than PNG?

Often dramatically smaller — AVIF's modern compression can reduce a large PNG to a fraction of its size, especially for photos and complex graphics, while keeping it visually close. That makes it excellent for speeding up web pages.

Will AVIF output work in my browser?

Yes. The page carries its own AVIF encoder (libavif, compiled to WebAssembly), so it doesn't need the browser to support making AVIF. The encoder is a 3.5 MB download the first time you convert. After that, a large photo takes around 10 seconds on a phone. Nothing is uploaded.

Is the conversion lossy?

AVIF supports lossy and lossless. The quality slider controls lossy compression for the smallest files; at a high setting the result is visually very close to the PNG. For pixel-perfect graphics, keep the quality high.

Do browsers display AVIF?

Most modern browsers display AVIF (Chrome, Firefox, Edge, recent Safari). Keep a PNG or WebP fallback for older browsers. Viewing support is broader than in-browser encoding support.

Why convert PNG to AVIF?

To cut file size for the web without losing transparency. A page full of heavy PNGs loads slowly; AVIF versions are much lighter, improving load times and Core Web Vitals while looking the same.

Are my images uploaded to a server?

No. The converter runs entirely in your browser using the HTML5 Canvas, so your files are processed on your own device and never uploaded. Nothing is stored once you close the tab. That keeps your images private and makes conversion fast, because there's no upload or download to a server.

Can I convert several files at once?

Yes. Drag in a whole batch and the tool converts them all locally. Download each result from its card, or click "Download All as ZIP" to save the entire set in one folder. There's no cap on the number of files beyond your device's memory.

Does it work on a phone?

Yes. It runs in your phone's browser with nothing to install, so you can convert files on Android or iOS and download the result. Small batches convert quickly; very large or high-resolution sets use more memory and are smoother on a computer, but everyday conversions work fine on mobile.

Is there a limit on file size or number of files?

There's no artificial cap or paywall, because nothing is uploaded — the work happens on your device. The practical limit is your device's memory. A large batch of high-resolution images uses more memory and is smoother on a computer, but everyday conversions run quickly even on a phone.

Do I need to install any software?

No. There's nothing to download or install and no account to create. The converter runs in any modern web browser, on any operating system, so you don't need a desktop image editor or codec. Just open the page, add your files, and convert.

Is it free, and is there a watermark?

Yes, it's completely free with no account and no limits, and it adds no watermark — what you download is clean. Because everything runs locally in your browser, there's no paywall and no usage cap.

Can I send the result to another tool without downloading it?

Yes. Once the tool has finished, a Send to button sits beside Download. Pick another tool and it opens with the result already loaded: no second download, no re-upload. Suggested next steps for this AVIF image: Image Compressor, Image Resizer, Image Cropper and Merge Images. The handover stays on your device, held in this browser for a few seconds while the next tool opens, then deleted.

Still have questions?

If you can't find the answer you're looking for, feel free to contact our support team.

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