How to convert JPG to AVIF
Drop your JPG files into the box above, or click Choose files. You can add several at once.
Adjust the quality if you like. The default is a good balance of size and detail.
Click Convert to AVIF. Each file is processed on your device, usually in under a second.
Download the AVIF files one by one, or all at once as a ZIP.
Why convert JPG to AVIF?
AVIF is built on the AV1 video codec and compresses photos better than both JPG and WebP. At similar visual quality an AVIF is often 30–50% smaller than a JPG, which makes pages load faster and saves data on mobile connections.
Page speed tools such as Lighthouse and PageSpeed Insights recommend modern formats for large images. AVIF usually gives the biggest saving, so it's a good choice for hero images, product photos and galleries.
The saving depends on the photo, so every result shows its exact size and you can compare it with the original side by side before you download it.
JPG vs AVIF
Both formats are lossy, but AVIF keeps edges and smooth gradients much cleaner at small sizes: where a heavily compressed JPG shows blocks and ringing, AVIF tends to look slightly soft instead. AVIF can also store transparency and animation, which JPG can't.
JPG's advantage is compatibility and speed. Every app, printer and email client opens it, and it encodes almost instantly. Use AVIF for images on websites, and keep JPG for photos you share with people or upload to services that may not accept AVIF.
| Property | JPG | AVIF |
|---|---|---|
| Compression | Lossy | Lossy or lossless (AV1), very efficient |
| Transparency | No | Yes, full alpha channel |
| Animation | No | Yes, rarely used |
| Best for | Photos, camera images | Website images where every kilobyte counts |
| Support | Everywhere, including very old software | All current browsers; limited in older desktop apps |
Is it safe?
Yes. JPG to AVIF runs entirely in your browser. Your files are read and converted by your own device using built-in browser technology, so they are never uploaded to a server and nobody else can see them.
You can check this yourself: open your browser's developer tools, switch to the Network tab and convert a file. No upload requests are made.
The new file is created from the image's pixels only, so EXIF metadata such as GPS location, camera model and capture time is not copied into it.
Files stay in this tab's memory only until you remove them or close the page.
Frequently Asked Questions
How much smaller will my AVIF files be?
It depends on the photo and the quality setting. Photos straight from a phone or camera often shrink by more than half at the default of 60%, with little visible difference. JPGs that were already heavily compressed shrink less. The result shows the exact change for every file.
Which quality setting is best for photos?
60% suits most photos. Raise it to 70–80% for images with fine texture or text, where you want every detail to stay crisp. Use the comparison view to check the result at full size before you download.
Why does the first AVIF conversion take a moment to start?
No browser can create AVIF files on its own, so an AVIF encoder (about 1 MB to download) is loaded the first time you convert and then runs on your device. Encoding AVIF is also more work than JPG or WebP: a large photo can take a few seconds.
Can every browser show AVIF images?
Every current version of Chrome, Edge and Firefox displays AVIF, and so does Safari from version 16.4 on iPhone, iPad and Mac. For older browsers, serve the AVIF with a fallback using the HTML picture element.
Does the AVIF keep my photo's location data?
No. The AVIF is built from the image pixels only, so EXIF data such as GPS coordinates, camera model and capture time is left out. Photos are rotated upright first, so they don't end up sideways.
Can I convert a whole set of JPGs to AVIF?
Yes. Drop up to 25 files, convert them in one go, and download them individually or together as a ZIP.