JPEG to AVIF

An AVIF file is an image saved in the AV1 Image File Format — a modern, highly compressed format used across the web. It holds the same kind of photo or graphic a JPG would, but at roughly half the file size. The catch: it's new enough that some older apps and devices can't open it yet, which is usually why you landed here. If you just downloaded an image and it saved as something ending in .avif that won't open, you're in the right place. This guide explains what the file is, why you're suddenly seeing them, and exactly how to open one on Windows, Mac, iPhone, Android, and Linux — plus the one fix that works everywhere.

You have a .jpeg file. A platform, system, or colleague needs a .jpg. You open Google and search for a JPEG to JPG converter — wondering why something so simple seems so complicated.

This guide covers the full JPG vs JPEG story, when and why you might need to change between them, and how to convert your JPEG to other formats like WebP, BMP, TIFF, and SVG using Transfonic's free Image Conversion tool — no software, no signup required.

JPEG files lose quality every time you save them. PNG files do not. If you are working with logos, screenshots, or any image that needs to stay sharp, converting JPEG to PNG is the right move — and it takes less than 10 seconds with the right tool