Convert JPG to AVIF online, free, and in seconds. AVIF is the most efficient image format available today — typically 40–50% smaller than JPG at the same visual quality. No account needed, no watermarks.
JPG to AVIF Converter
Not sure if AVIF is right for your images? Read our JPG vs AVIF guide.
What is AVIF and why is it better than JPG?
AVIF (AV1 Image File Format) is a modern image format developed by the Alliance for Open Media. It uses the same compression technology as AV1 video to deliver dramatically smaller file sizes compared to JPG and even WebP:
- AVIF is typically 40–50% smaller than JPG at equivalent quality
- AVIF is typically 20–30% smaller than WebP
- AVIF supports transparency (JPG does not)
- AVIF supports HDR (high dynamic range) colour
- All major modern browsers support AVIF: Chrome, Edge, Firefox, Safari
When to convert JPG to AVIF
- Web performance — AVIF images load faster and consume less bandwidth, directly improving Core Web Vitals scores
- Photography portfolios and galleries — serve the same quality at half the file size
- E-commerce product images — faster loading product images improve conversion rates
- Blogs and news sites — reduce server storage and CDN costs without compromising image quality
Not sure if AVIF is the right choice? See how AVIF compares to WebP and when it’s actually worth using.
How to convert JPG to AVIF online for free
- Upload your JPG file using the tool above
- The converter processes it in seconds
- Download your AVIF file
Before & After
The example below shows the difference between a JPG and an AVIF version of the same image. The image on the left is the original JPG that is 6KB, while the AVIF version on the right (converted at 80% quality) is just 3KB. Visually, there is almost no noticeable difference, yet the AVIF file is 50% smaller. That kind of reduction can make a real difference to page speed, especially when you have dozens of images on a website.
Same visual quality, 50% smaller file size.
JPG vs AVIF — comparison
| JPG | AVIF | |
|---|---|---|
| Typical file size | Baseline | 40–50% smaller |
| Transparency | No | Yes |
| HDR support | No | Yes |
| Browser support | Universal | All modern browsers |
| Software support | Universal | Limited outside browsers |
Learn more about AVIF, compression, browser support and real-world use cases in our complete AVIF guide.
Is AVIF supported everywhere?
Modern browsers (Chrome, Safari, Firefox, Edge) all support AVIF. However, older browsers and many desktop applications do not yet understand AVIF files. For images that need to work outside of a web browser — in email, print software, or older devices — JPG is still safer.
Frequently asked questions
Is AVIF better than WebP?
In most cases yes — AVIF achieves smaller file sizes than WebP at the same quality level. WebP has slightly broader software support, but AVIF is supported in all major browsers released in the last three years.
Is this JPG to AVIF converter free?
Yes. No signup, no watermark, no limit.
Does AVIF support transparency?
Yes, unlike JPG, AVIF fully supports transparent backgrounds.
Can I use AVIF on my website?
Yes, all major modern browsers support AVIF. For older browser support, serve JPG as a fallback.
How do I convert JPG to AVIF on Windows or Mac?
Open this page in any browser, upload your JPG, and download the AVIF file. No software installation needed.
For more information on AVIF files check out our blog post
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