What is AVIF and what does this converter do?
AVIF (AV1 Image File Format) is a modern image format based on the AV1 video codec, released by the Alliance for Open Media in 2019. It compresses photos far better than JPG, often producing files around half the size at similar visual quality, and it supports transparency and HDR colour.
Chrome, Edge, Firefox and Safari (since version 16) all display AVIF, so more websites now serve it. But many desktop apps, editors and upload forms still don't open AVIF files. This converter works in both directions. Set to Auto, it turns AVIF files into JPG and turns JPG, PNG and WebP files into AVIF. You can also force any output: AVIF, JPG, PNG or WebP.
Use the quality setting to balance size and sharpness. AVIF holds up well even at lower quality values, so 60–75 is often plenty for website photos, while 85 suits images where fine detail matters.
Using the AVIF Converter for your business
AVIF can cut image weight sharply, but only if browsers that don't support it still get a fallback. Rolling out modern formats safely across a site is part of our technical SEO service, alongside the Core Web Vitals work that turns faster pages into better rankings with our wider SEO services.
How to use the AVIF Converter
- Upload images. Add AVIF, JPG, PNG or WebP files, up to 10 at once.
- Choose the output. Auto picks the sensible direction, or choose AVIF, JPG, PNG or WebP yourself.
- Set the quality. 85 is a safe default. Try 60–75 for smaller website images.
- Click Convert. Your images are converted in a few seconds.
- Download. Compare sizes on each result card and download one file or a ZIP.
Why use this AVIF converter
Both directions
Open AVIF files as JPG/PNG, or create AVIF files for your website.
Tiny file sizes
AVIF can halve image weight compared with JPG, speeding up pages.
Transparency supported
AVIF, PNG and WebP keep transparent backgrounds.
Batch processing
Convert a whole set of images at once.
Should your website use AVIF?
Images are usually the heaviest part of a web page, and the main image on a page is often what Google measures for Largest Contentful Paint. Serving AVIF or WebP instead of JPG is one of the most effective ways to improve that metric.
The safest approach is to serve AVIF with a fallback: the HTML picture element lets browsers pick AVIF, then WebP, then JPG, so every visitor gets an image. Many CDNs and WordPress plugins can do this automatically.
AVIF encoding is slower than JPG or WebP, which is why some sites use WebP as the main modern format. Test both on a few of your key images and compare quality and size before switching a whole site.
If you received AVIF images from a designer or downloaded them from a website and your editing software won't open them, convert them to PNG for editing (it's lossless, so nothing is lost while you work) and then export the final version as WebP or AVIF again for the web.
Is it safe to upload my files?
Your files are processed on our own server, not sent to any third-party service, and are deleted automatically 30 minutes after processing. We strip location data from photos when converting them, and we never use your files for anything else.
Frequently asked questions
How do I open an AVIF file?
Modern browsers open AVIF directly. To use it in other apps, convert it to JPG or PNG here.
Is AVIF better than WebP?
AVIF usually compresses photos a little better than WebP, but it's slower to create. Both are far smaller than JPG.
Does AVIF support transparency?
Yes, like PNG and WebP.
Do all browsers support AVIF?
Current versions of Chrome, Edge, Firefox and Safari 16+ do. Use a JPG or WebP fallback for older browsers.
What quality should I use for AVIF?
Start at 65–75 for website photos and check the result. Use 85+ for detailed images.