How to Convert JPG to AVIF for a Faster Website
AVIF images are 30–50% smaller than WebP at the same quality. Learn how to convert JPG to AVIF free and speed up your website.
Why AVIF Is Worth It
AVIF is the newest mainstream image format, and it's a big leap: at the same visual quality, AVIF files are typically 30–50% smaller than WebP and 50–70% smaller than JPG. For a website, that translates directly into faster loads, lower bandwidth bills, and better Google rankings — because page speed (specifically Largest Contentful Paint) is a ranking factor.
Every major browser now supports displaying AVIF, so it's ready for real-world use.
How to Convert JPG to AVIF
1. Open Breklo's JPG to AVIF converter
2. Drop your JPG or PNG images onto the page
3. Choose a quality level (around 55–65% is a good starting point)
4. Click convert and download your AVIF files
The conversion runs in your browser — your images are never uploaded. Compare the file sizes; the reduction is often dramatic.
A Note on Browser Support
Here's the one thing to know: creating AVIF files (encoding) currently works in Chrome and Edge. Viewing AVIF works everywhere. So convert your images using Chrome or Edge, and every visitor's browser will display them fine. If you open the tool in a browser that can't encode AVIF, Breklo tells you right away.
Using AVIF on Your Website
For best results, serve AVIF with a fallback using the HTML `<picture>` element:
The browser picks AVIF if it can, and falls back to JPG otherwise. This gives modern browsers the small AVIF file while older ones still see an image. It's the safest way to adopt AVIF without leaving anyone behind.
AVIF vs WebP: Which Should You Use?
WebP is a safe, widely-supported choice that's smaller than JPG. AVIF goes further — smaller still — but encoding support is narrower. A common approach: offer AVIF first, WebP as a fallback, then JPG. If that's too much to manage, JPG to WebP alone still gives a solid speed boost with universal support.
The Payoff
Converting your site's images to AVIF is one of the highest-impact, lowest-effort speed optimisations available. Smaller images, faster loads, better Core Web Vitals, higher rankings — all from a format change that visitors never even notice.
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Frequently asked questions
How do I convert JPG to AVIF for free?
Use Breklo's JPG to AVIF converter in Chrome or Edge. Drop your JPG or PNG images in, choose a quality, and download AVIF files. It runs in your browser with no upload.
How much smaller is AVIF than JPG?
At the same visual quality, AVIF is typically 50–70% smaller than JPG and 30–50% smaller than WebP — a major bandwidth and speed improvement.
Why can't I create AVIF in my browser?
AVIF encoding currently works in Chrome and Edge. Other browsers can view AVIF but not create it. Use Chrome or Edge to convert, and all browsers will display the result.
Is AVIF good for SEO?
Yes, indirectly. Smaller images load faster, improving Core Web Vitals like Largest Contentful Paint, which Google uses as a ranking signal.
Should I use AVIF or WebP?
AVIF is smaller but has narrower encoding support. A common approach is to serve AVIF with a WebP and JPG fallback so every browser gets the best format it supports.