A free JPG to AVIF converter that runs in your browser
This JPG to AVIF tool converts your photos on your own device. The files are never uploaded, so it is a JPG to AVIF converter no upload is needed for, and nothing sits on a server afterwards.
It is a genuine JPG to AVIF online free service: no account, no watermark and no daily limit wall. The AVIF encoder is libavif, the open-source library that many image pipelines use.
Why people change JPG to AVIF
AVIF is an AV1 image format built on the AV1 video codec. For most photos it produces a noticeably smaller file than JPG at a similar look, which means pages load faster and use less mobile data. You still keep a normal-looking picture, just in a newer container.
Convert multiple JPG to AVIF in one go
Drop a whole folder of product shots or blog images. Batch JPG to AVIF handles up to 30 files, and results appear as each one finishes. If one fails you can retry it without restarting the rest.
What is AVIF and how does it compare?
AVIF (AV1 Image File Format) is a next-gen image format. It supports lossy and lossless compression, transparency, 10-bit colour and HDR. JPG supports none of those extras, and it has been around since 1992.
| Feature | JPG | WebP | AVIF |
|---|---|---|---|
| Typical photo size | Baseline | Smaller | Usually smallest |
| Transparency | No | Yes | Yes |
| Lossless option | No | Yes | Yes |
| High bit depth / HDR | No | No | Yes |
| Opens everywhere | Yes | Almost | Modern browsers and apps |
| Encoding speed | Fast | Fast | Slower |
AVIF vs JPG
In a straight AVIF vs JPG test the AVIF file size is often around half at a similar look, though every photo is different. The trade-off is compatibility: some older software and a few upload forms still expect JPG.
AVIF vs WebP
Both are modern web formats. AVIF vs WebP usually ends with AVIF a little smaller and better at smooth gradients, while WebP encodes faster and opens in slightly more places. If you want WebP instead, use the JPG to WebP converter.
Is AVIF better than JPG?
For websites, usually yes. For printing, emailing relatives or government forms, keep a JPG. The honest answer to whether AVIF is better than JPG depends on where the file is going.
JPG to AVIF without losing quality
Every lossy format throws away some detail. The goal is to discard only what your eye will not notice, and the quality slider controls that. For a demanding job, aim for JPG to AVIF high quality settings and check the result closely.
Choosing an AVIF quality setting
- 70–80: a good default for blog and product photos.
- 55–65: hero images and backgrounds where size matters most.
- 85 and above: portfolios, fine texture and text inside photos.
Zoom to 100% or more and hold B to compare. If you cannot see a difference, try one step lower.
Lossless AVIF
Lossless AVIF keeps every pixel exactly. For a camera JPG this often makes a bigger file, because the JPG noise has to be stored perfectly. Use it for graphics and screenshots, not ordinary photos.
Why is my AVIF bigger?
If a result grows, the JPG was probably already heavily compressed, or you chose lossless or a very high quality. Lower the slider a little, or set a longest-side limit so a 4000 px photo becomes 1600 px. For a JPG that only needs to be lighter, compress the image instead of changing format.
Use AVIF to speed up your website
Google PageSpeed Insights often asks you to serve images in next-gen formats. Converting JPG to AVIF for website use is one of the quickest ways to act on that advice, and smaller hero images help your Largest Contentful Paint score in Core Web Vitals.
Size before you convert
A 4000 px camera photo shown in a 1200 px column wastes bytes in any format. Set the longest-side limit here, or resize the image first to the width your layout really uses. That is often the easiest way to reduce image size for website pages.
AVIF for WordPress and Shopify
Recent WordPress versions accept AVIF uploads when the server supports it, so AVIF for WordPress is now practical. For AVIF for Shopify, check your theme first, because many stores and CDNs already create AVIF on the fly. Always keep the original JPG as a backup.
Fallback for older browsers
AVIF browser support covers current Chrome, Edge, Firefox and Safari. For older devices use a picture element with an AVIF source and a JPG fallback, so every visitor sees an image.
JPG to AVIF on iPhone, Android, Windows and Mac
The converter is a web page, so there is no JPG to AVIF converter app to install and nothing to download.
- JPG to AVIF on iPhone: open the page in Safari, tap to choose photos from the library, then save or share the result.
- JPG to AVIF on Android: use Chrome; options open as a bottom sheet.
- JPG to AVIF on Windows: works in Edge, Chrome or Firefox, so it doubles as a JPG to AVIF converter for PC.
- JPG to AVIF on Mac: use Safari, Chrome or Firefox and drag photos straight from Finder.
How to open AVIF files
Current browsers open AVIF directly. Windows 11 Photos opens them with the free AV1 extension, and recent macOS and iOS versions open them natively. If someone cannot view the file, send a JPG instead or use AVIF to JPG to switch back.
More ways to use this AVIF image converter
The same engine accepts more than JPG. You can convert image to AVIF from PNG, WebP, HEIC or GIF, so PNG to AVIF works here too and keeps transparent areas. Think of it as an image to AVIF tool for anything already on your phone or laptop.
JPG to AVIF free, with no sign up and no watermark
There is no account screen and nothing stamped on your pictures. Results are saved exactly as the AVIF format encoder wrote them, usually smaller than JPG for the same scene.
Pick the right JPG to AVIF quality
For a quick job, keep the default quality and download. If you prefer a lossless copy of a graphic, switch lossless on before you convert photos to AVIF in a batch.
Privacy, camera data and batch tips
Is it safe to convert JPG to AVIF online here? The conversion runs in a background worker inside your browser, so your photos stay on your device from start to finish.
Camera data
The keep date and camera option applies to JPG output. AVIF results are written without camera details, which also removes GPS location. That is a plus when you publish photos online.
Batch tips
- Convert JPG images to AVIF in groups of similar photos so one quality setting suits them all.
- Check the totals line to see how much you saved across the batch.
- Use Download all as ZIP to keep file names together.
Need other formats too? The image converter changes any supported format to any other, and PNG to WebP suits graphics with transparency.