AVIF to JPG Converter

AVIF gets its efficiency from AV1, the same royalty-free video codec used for a lot of modern video streaming, applied here to a single still frame instead of a video. Rather than treating each 8x8 block of pixels in isolation the way JPEG does, AV1's intra-frame prediction guesses each block from its neighbors using dozens of directional patterns, then compresses whatever's left with more sophisticated entropy coding. That's a genuinely different approach from JPEG's, not a rebrand of it, and it's why an AVIF photo typically looks just as good, or better, at a meaningfully smaller file size.

That same newness is also the problem "convert avif to jpg" searches are usually trying to solve. AVIF has been around for a few years now, and most current browsers decode it fine, but a lot of desktop image viewers, older content management systems, and social platforms still don't open it, or reject it outright on upload. JPG has no such problem: it's been the default photo format since 1992, and there isn't a device, browser, or printer anywhere that doesn't already know how to open it.

This tool tries your browser's own native AVIF decoder first, which is instant and needs nothing else downloaded. Only if that fails, an older browser, or a Safari version without full AVIF support, does it quietly load a WebAssembly decoder just for that one file. Either way, decoding and the JPG re-encode that follows both happen entirely on your device. Nothing is ever uploaded anywhere to make this conversion work.

Say your camera or a design tool exported a landscape photo as sunset.avif, and the blog platform you want to publish it on doesn't recognize the .avif extension at all.

Drop the file into the box above, leave quality at its default 90%, and click "Convert." In about a second, entirely on your device, you'll have sunset.jpg, ready for a platform that's never heard of AVIF, an 81 KB AVIF like this one typically comes out around 180 to 200 KB at that quality setting.

Worth being upfront about: this conversion usually makes the file bigger, not smaller. AVIF's AV1-based compression is genuinely more efficient than JPEG's at the same visual quality, so converting to JPG trades away some of that efficiency in exchange for a format that opens absolutely everywhere. If file size matters more than compatibility, keeping the original AVIF is often the better call; this tool exists for the moments when compatibility is what you actually need.

JPEG hasn't fundamentally changed since 1992: it splits a photo into 8x8 blocks, runs each one through a discrete cosine transform, and discards the visual detail human eyes notice least, then compresses what's left with Huffman coding. It's a simple, decades-old recipe, and that simplicity is exactly why every browser, phone, and printer already decodes it without a second thought.

AVIF is a considerably newer design, inheriting AV1's intra-frame prediction: each block is predicted from its neighbors using dozens of directional patterns before whatever's left is compressed further, and it supports 10-bit and 12-bit color depth plus real alpha transparency, neither of which JPEG's 8-bit, opaque-only pipeline can offer. That extra sophistication is why AVIF typically beats JPEG on file size at equivalent quality, and also why it's still catching up on universal support. Converting to JPG trades some of that efficiency away for a format guaranteed to open absolutely everywhere.