Convert AVIF images to JPG, PNG or WebP, or create AVIF files for the fastest-loading websites.
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CONVERT FROM AVIF
Convert AVIF images to JPG files that open anywhere
Convert AVIF images to lossless PNG with transparency
Convert AVIF images to widely supported WebP
CREATE AVIF FILES
AVIF UTILITIES
AVIF is the most efficient mainstream image format on the web, built on the AV1 video codec and typically half the size of an equivalent JPEG. Browsers love it; the rest of the software world is still catching up, which is why AVIF downloads so often refuse to open in photo viewers, editors and upload forms.
These tools bridge that gap in both directions. Convert AVIF into formats that open everywhere, view AVIF files on any device, or create AVIF images when you want the smallest possible files for your own site. Everything runs natively in your browser, with nothing uploaded.
| Format | File size | Transparency | Best for |
|---|---|---|---|
| AVIF | Smallest | Yes | Modern websites where loading speed matters most |
| WebP | Small | Yes | Web images with broader app and platform support |
| JPG | Medium | No | Universal sharing: every app, form and device opens it |
| PNG | Largest | Yes | Lossless editing, screenshots and sharp graphics |
AVIF stores images using the same AV1 compression that powers modern video streaming. The result is remarkable efficiency: photos around half the size of an equivalent JPEG, with support for transparency, 10-bit and 12-bit colour, HDR and even animation in a single format.
Every current browser decodes it, including Chrome, Firefox, Edge and Safari 16.4 onward, which is why large websites have adopted it quickly. Desktop software is the laggard: many photo viewers, editors and upload pipelines still reject the files, and that mismatch is the entire reason conversion tools exist.
Windows Photos can only open AVIF after the AV1 video extension is installed, and plenty of older applications cannot open the format at all. That is why an AVIF saved from a website so often becomes a file nothing on the PC will display.
The quickest fix is the AVIF Viewer, which decodes the image right in your browser on any operating system. For a permanent fix, convert the file once to JPG or PNG and it will open in every application Windows has.
AVIF wins on pure size, typically 20 to 30 percent smaller than WebP at the same visual quality, which makes it the strongest choice for hero images and photo-heavy pages. WebP wins on reach: it has been supported longer, so more tools, CMS platforms and plugins handle it without complaint.
A practical setup is AVIF first with a WebP fallback, which the picture element handles natively in HTML. If you maintain only one modern format, WebP remains the safer default, and converting between the two takes seconds here.
AVIF is an image format built on the AV1 video codec. It stores photos at roughly half the size of an equivalent JPEG while supporting transparency, HDR, 10-bit colour and animation, which is why fast websites have adopted it quickly.
Any current browser opens AVIF natively, and the AVIF Viewer here displays the file instantly on any device. For apps that refuse the format, convert the file once to JPG or PNG and it opens everywhere.
Open the AVIF to JPG converter, drop in your images, pick a quality level and download the JPG copies. Your browser decodes the AVIF natively, so nothing is installed and nothing is uploaded.
AVIF produces smaller files, usually 20 to 30 percent smaller at the same quality, while WebP is supported by more apps and platforms. For websites, AVIF with a WebP fallback gives the best of both.
Yes, full alpha transparency, plus HDR and animation. Converting to PNG or WebP preserves the transparency; converting to JPG flattens it onto a background colour you choose.
AVIF is young, and support outside browsers is still rolling out. Windows Photos needs the AV1 extension, and many older viewers and editors simply have not added the format yet. Converting to JPG or PNG fixes it permanently.
Yes. The AVIF Converter encodes JPG and PNG images into AVIF for the smallest possible website files, and dedicated PNG to AVIF and JPG to AVIF pages are on the way.
No. Your browser decodes AVIF natively and re-encodes the output on your own device, so files never touch a server and there are no size caps or daily limits.