Convert PNG to AVIF Online Free & Fast
Turn your PNG images into smaller AVIF files in seconds. No installs, no software just upload, convert and download.
This tool converts PNG images to AVIF, currently the most space-efficient image format in common use. AVIF typically produces smaller files than PNG, WebP or JPG at a similar visual quality, and like WebP, it supports transparency, so any transparent areas in your PNG carry over. The trade-off is compatibility: AVIF is newer than WebP, and while support has grown across major browsers, some older software, email clients and platforms still don't display it. If broad compatibility matters more than squeezing out the smallest possible file, WebP is a safer middle ground. Upload your file and download an AVIF in seconds; it's deleted automatically within an hour.
How It Works
- Upload your PNG Drag and drop or browse to select your file.
- Convert to AVIF Convert Omni processes it automatically.
- Download your AVIF Your smaller file is ready in seconds.
Why Convert PNG to AVIF
- Smallest file sizes available. AVIF often beats even WebP for compression at a comparable quality level.
- Transparency preserved. Like WebP, AVIF supports alpha-channel transparency, so it carries over from your PNG.
- Fastest possible page loads. For sites where every kilobyte of load time matters, AVIF offers the biggest savings of any widely available format.
- Modern browser support. Chrome, Firefox and Edge support AVIF, and Safari has supported it since 2022 (Safari 16+).
Frequently Asked Questions
Will converting PNG to AVIF keep my transparency?
Yes. AVIF supports alpha-channel transparency, the same as PNG and WebP, so transparent areas stay transparent after conversion.
Is AVIF really smaller than WebP?
Usually, yes. AVIF generally achieves better compression than WebP at a comparable quality level, though the exact difference depends on the image.
Does AVIF work in all browsers?
Not quite as universally as WebP. Chrome, Firefox and Edge support AVIF, and Safari has supported it since version 16 (2022), but some older browsers, email clients and software still don't display it. If broad compatibility is more important than maximum compression, WebP is the safer choice.
Will converting to AVIF reduce my image quality?
AVIF can be encoded losslessly, matching PNG's exact quality at a smaller file size, or with lossy compression for even smaller files at a quality trade-off. Either way, AVIF is generally efficient relative to its file size.
Why would I choose AVIF over WebP?
Mainly when file size matters most and you're confident your audience uses modern browsers AVIF typically produces the smallest files of any format on this list.
Is there a limit on how many PNGs I can convert?
The free plan allows 10 conversions a day for files up to 10 MB. Paid plans remove the daily limit and raise the file-size cap.
Is it safe to upload my PNG files?
Yes. Conversion is automated, uploads are encrypted (HTTPS/TLS) and every file is permanently deleted within 60 minutes. Your images are never used to train AI models.