AVIF to JPG
Open an AVIF as a JPG. The same picture costs several times more bytes here, because JPEG needs them to look the way the AVIF looked.
Runs on your device. The file is never uploaded.
AVIF to JPG is the conversion where the file gets bigger. AV1 spends few bits on a photograph and JPEG needs a great many more to look the same, so the byte count climbs. The quality box is the only lever on that, and it works on the JPEG, not on what the AVIF dropped.
Questions
Does AVIF to JPG upload my files?
No. AVIF to JPG runs inside this browser tab, in a Web Worker on your own machine, and no part of your file is sent anywhere. There is no upload step to skip — the tool cannot reach a server even if it wanted to, and the counter on the homepage shows the number of outbound requests the page has made: zero.
How many files can I use at once?
Drop as many as you like. Each file is handled separately and comes back as its own result, so twenty files in means twenty results out.
What can I change about the result?
One setting: quality (Quality 1-100). Defaults are filled in, so it runs without changing anything.
Is AVIF to JPG free, and do I need an account?
It is free and there is no account, no sign-in and no quota. Nothing is metered because nothing runs on a server — the only limit is your own device's memory, which is what decides how large a file it can handle.
Does it work offline?
Yes. The whole site is stored in your browser after the first visit, so AVIF to JPG keeps working with the network off. Tools that use a machine-learning model download that model once, on first use, and run offline afterwards.
Can I use AVIF to JPG outside the browser?
Yes. Every tool here is the same code on three surfaces: this page, a CLI command, and an MCP tool an AI agent can call. `avif-to-jpg` is the name it goes by on all three.