Convert JPG to AVIF
Encode JPG photos as AVIF for fast, modern websites, with the AVIF encoder running on your own device.
- No uploads
- No sign-up
- Up to 20 files at once
- Free
Your images
Drop images here
or paste with Ctrl+V
- JPG
- PNG
- WebP
- HEIC
- AVIF
- TIFF
- GIF
- BMP
- SVG
- ICO
Up to 20 files · 100 MB each
How to convert JPG to AVIF
- Choose your files. Add JPG images. You can select up to 20 files per batch, within the displayed size limits.
- Set the result. AVIF is already selected. Adjust dimensions and, for JPG, WebP or AVIF, quality. Check the transparency background where available.
- Convert and download. Download each result or the batch ZIP. Compare file size and appearance before replacing any original.
AVIF output: Efficient web images. Transparency can be preserved when the source contains it.
Need help choosing settings? Compare image formats, reduce a large image, or convert iPhone photos.
Who benefits from AVIF
AVIF often delivers the smallest files of the common web formats at a given visual quality, which makes it attractive for photo-heavy pages, portfolios and online shops. Current versions of the major browsers display it. It is a web delivery format first: many desktop apps, email clients and upload forms still do not accept AVIF, so keep your JPG originals for everything else.
Settings to start with
AVIF quality numbers do not line up with JPG quality numbers. In ConvitAll the AVIF slider starts at 60, and a range of about 50 to 70 is a good place to begin for photos. Compare the result at its display size before choosing a lower value. Pair it with a sensible longest side, such as 1,920 or 1,280 pixels, because reducing dimensions usually saves more than squeezing quality. AVIF also supports a maximum size in KB.
Encoding takes longer, and that is normal
AVIF is computationally heavy to create. ConvitAll encodes it with a codec that runs in a background worker inside your browser, so a large photo can take several seconds, longer on a phone. Converting smaller dimensions or fewer images at a time keeps things responsive. The trade is that nothing is uploaded and you are not waiting in a server queue.
What the AVIF keeps
You get the visible photo with its orientation applied. EXIF fields such as GPS and camera details are not copied, and the output is a standard-range image, so it does not add HDR. JPG has no transparency, so there is no alpha channel to carry over.
Is there a built-in way?
Standard save dialogs in Windows Paint and macOS Preview do not typically include AVIF, so a dedicated encoder is the usual route. Some image CDNs and site platforms generate AVIF automatically; if yours does, upload the JPG and let it handle the conversion.
Questions and answers
Is AVIF better than WebP for my website?
AVIF often produces smaller files than WebP at similar quality, but it encodes more slowly and support outside browsers is thinner. Many sites serve either one. Try both on a few typical photos and compare file size and appearance before deciding.
Why is JPG to AVIF slower than other conversions?
Creating an AVIF requires much more computation than JPG or WebP. ConvitAll runs the AVIF encoder locally in a background worker, so speed depends on your device and the image size. Reduce the longest side to speed it up.
What AVIF quality setting matches JPG quality 90?
There is no exact match because the scales are different. As a rough guide, try AVIF 60 to 70 where you would use JPG 85 to 90, then compare the two images side by side at the size they will be displayed.
Can I send AVIF images by email or upload them to forms?
Often not. AVIF is mainly supported by web browsers. Many email clients, office programs and upload forms reject it or show a blank image. Keep JPG for sharing and use AVIF for web pages you control.
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