Why would you need to convert your image to AVIF?
If your website is loading slowly because of heavy images, or you want to save storage space without sacrificing visible quality, converting to AVIF is one of the most effective solutions. It's a modern format that delivers noticeably smaller file sizes than JPG or PNG at a comparable quality level.
What AVIF is and why it matters
AVIF is a modern image format based on the AV1 video codec, built specifically to deliver much better compression than older formats. In practice, that means faster-loading pages, less bandwidth used, and lower storage costs, all while keeping visual quality close to the original — which is why more and more websites are adopting it.
Steps to convert to AVIF on Fastols
The conversion takes just a few seconds:
Open the AVIF Converter tool
Open the tool directly from the tools page.
Upload your image
Drag and drop the image or select it from your device.
Choose the quality level
Pick the balance between file size and quality that suits you.
Download the AVIF file
Once conversion is done, download the new file instantly.
Practical tips before you start
Before converting your image, keep these points in mind:
- Check that the platform or app you're using actually supports AVIF before relying on it as your only format.
- Keep a copy in a widely supported format (like JPG) as a fallback for older browsers.
- Try a higher quality level first if the image contains fine detail you want to preserve.
- AVIF tends to shine most with photographic images; simple graphics may not shrink as dramatically.
Keep the original image on hand — you can always re-convert it at a different quality level later if needed.
Common use cases
- Converting website images to AVIF to speed up page load times.
- Reducing storage space used by large photo libraries.
- Preparing lighter images for mobile apps with limited bandwidth.
- Modernizing an image workflow to use a more efficient format going forward.
Why choose Fastols?
Smaller size, comparable quality
AVIF compresses far better than older formats
No permanent server storage
Your image is processed and deleted immediately afterward
Completely free
Unlimited use with no hidden fees
Adjustable quality levels
Balance file size and quality the way you need
Frequently Asked Questions
Do all browsers support AVIF?
Most modern browsers support it, but it's best to provide a fallback in a common format for older browsers.
Is my data stored on your servers?
No, the image is processed and deleted immediately after use, with no permanent storage.
Does converting affect image quality?
It depends on the quality level you choose; the tool gives you different options to balance size and quality.
Can I convert any format to AVIF?
Yes, the tool supports converting from the most common image formats like JPG, PNG, and WebP.
Does AVIF support animation like GIF?
The format technically supports animated content, but this tool is meant for converting static images.
Will the file size actually shrink?
In most cases yes — AVIF typically produces smaller files than JPG and PNG at roughly the same quality level.
Ready to convert your image to AVIF?
Try the AVIF converter for free right now — no sign-up, no software to install.
Try the AVIF Converter Now