PNG is a lossless format that supports full transparency. Because it loses no detail, PNG is the top choice for logos, screenshots, infographics, and images that need perfect sharpness. However, PNG isn't always ideal — especially when you need AVIF.
AVIF brings the advantage: Most efficient format — up to 50% smaller than JPG, ideal for max loading speed.
With FORMATTO, you can convert PNG to AVIF in seconds. Everything runs 100% on your device — files are never uploaded to any server, so your privacy is guaranteed. Did you know? PNG was designed as a patent-free replacement for GIF and only gained animation support via the APNG variant.
How to convert PNG to AVIF
- 1Select or drag your PNG files to the box above (batch supported).
- 2Adjust quality and size as needed, then click "Convert to AVIF".
- 3Download results one by one or together as a ZIP. Done — no signup, no upload.
Why your files are safe
100% on device
Files never leave your device.
No trace
Close the tab, data is gone.
Free
Unlimited, no watermark.
Frequently asked questions
How to convert PNG to AVIF?
Just drag your PNG files to the converter box above, pick your settings, then click convert. The AVIF result is ready to download — all processed on your device.
Is FORMATTO really free?
Yes, 100% free with unlimited conversions. Because everything runs in your browser, we have no per-conversion server cost — so it stays free forever.
Are my PNG files safe?
Very safe. Your files are processed directly on your device and never uploaded to a server. When the page is closed, no trace remains.
How many files can I convert at once?
You can process many files at once (batch). Download them individually or as a single ZIP.
Why are PNG files usually larger than JPG?
Because PNG uses lossless compression (no data loss). For photos, PNG can be 3-5x larger than JPG with nearly identical visual quality.
Does AVIF support transparency?
Yes. Unlike some other formats, AVIF supports transparency (alpha channel) so empty areas stay see-through.