PixConvertBlogJPG to AVIF Converter
Convert JPG to AVIF for 40–60% smaller files with the same visual quality. Free, no upload, runs 100% in your browser. Improve Core Web Vitals instantly.
Drop your JPG files here
or click to browse — multiple files supported
Your files never leave your device
How to convert JPG to AVIF
- 1
Open in Chrome or Edge
AVIF encoding requires Chrome 94+ or Edge 94+. If you're on Firefox or Safari, switch browsers first.
- 2
Drop your JPG or JPEG file
Drag and drop one or more .jpg or .jpeg files onto the converter, or click "Choose Files". Multiple files convert simultaneously.
- 3
Download your AVIF
Click "Download" next to each file. For multiple files, use "Download all" to save everything as a zip.
Why AVIF is the future of web images
AVIF (AV1 Image File Format) is based on the AV1 video codec developed by the Alliance for Open Media — a consortium that includes Google, Netflix, Apple, and Microsoft. It achieves remarkable compression by using more sophisticated encoding algorithms than JPG or even WebP.
For web developers, switching to AVIF can dramatically improve Core Web Vitals scores by reducing image payload. Google, Netflix, and Facebook have all adopted AVIF for significant bandwidth savings.
40–60%
Smaller than JPG
At the same visual quality
20–50%
Smaller than WebP
Additional savings over WebP
97%+
Display support
Chrome 85+, Firefox 93+, Safari 16+
Using AVIF on your website
Serve AVIF with fallbacks for maximum browser coverage:
HTML — AVIF first, WebP fallback, JPG last resort
<picture> <source srcset="image.avif" type="image/avif"> <source srcset="image.webp" type="image/webp"> <img src="image.jpg" alt="Description"> </picture>
Next.js — automatic AVIF + WebP output
// next.config.js
module.exports = {
images: {
formats: ['image/avif', 'image/webp'],
},
};JPG vs WebP vs AVIF — compression comparison
| Feature | JPG | WebP | AVIF |
|---|---|---|---|
| File size | Baseline | 25–35% smaller | 40–60% smaller |
| Transparency | ✗ | ✓ | ✓ |
| HDR color | ✗ | ✗ | ✓ |
| Browser support (display) | 100% | 97%+ | 97%+ |
| Safari encoding | ✓ | ✓ | ✗ |
| Core Web Vitals | Baseline | ✓ Better | ✓ Best |
| Introduced | 1992 | 2010 | 2019 |
100% private — files never leave your device
All JPG-to-AVIF conversion happens inside your browser using the Canvas API. Your images are never transmitted anywhere. No account, no watermark, no server-imposed file size limit.
Frequently Asked Questions
How much smaller is AVIF compared to JPG?
AVIF typically produces files 40–60% smaller than equivalent JPG files at the same visual quality, making it one of the most efficient image formats available. For photographic content with smooth gradients and textures, the savings are most pronounced.
Which browsers support AVIF encoding?
AVIF encoding via the browser Canvas API is supported in Chrome 94+ and Edge 94+. Firefox and Safari cannot encode AVIF via canvas.toBlob() yet. For cross-browser encoding, use JPG→WebP instead.
Will JPG to AVIF improve my Google PageSpeed score?
Yes. AVIF is currently the highest-rated format in Google Lighthouse and PageSpeed Insights for image compression. Smaller files directly improve Largest Contentful Paint (LCP), a critical Core Web Vitals metric.
Does JPG to AVIF lose quality?
We use quality 92% by default, which looks excellent for most images. Since your source JPG is already lossy, this is a re-encoding step — for best results, always convert from the original source file rather than a previously compressed JPG.
Is AVIF supported in all browsers?
AVIF display is supported in Chrome 85+, Firefox 93+, Safari 16+, and Edge 121+. For older browsers, use a <picture> element with a WebP fallback and a JPG last resort.
Can I convert multiple JPG files to AVIF at once?
Yes. Drop multiple JPG files and they all convert simultaneously. A "Download all" button appears when there are two or more files.
Are my files uploaded to a server?
No. All conversion runs inside your browser using the Canvas API. Your images are never sent to any server. No account required, no watermark, no file size limit.
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