How to use this AVIF to JPG converter
- Drag your .avif files onto the dropzone, or press Browse files to select them.
- Set the JPG quality, 92% is a safe default that keeps the conversion visually lossless.
- Pick a fill colour if any of the images have transparent regions.
- Press Convert to JPG and wait for the batch to finish.
- Download each file, or take everything as a single ZIP archive.
What this converter handles
- Reads AVIF files produced by modern websites, image CDNs and export tools.
- Fills transparency with a colour you choose rather than assuming white every time.
- Keeps full resolution, high dynamic range sources are tone-mapped by the browser, not downscaled here.
- Converts up to twenty images per batch with a progress bar for longer jobs.
- Reports the size change per file, which is usually a substantial increase.
- Requires no account, adds no watermark and imposes no daily limit.
AVIF is excellent on the web and awkward everywhere else
AVIF is built on the AV1 video codec and is currently the most efficient widely deployed still-image format. At the same visual quality it frequently produces files half the size of WEBP and a third the size of JPEG, which is why image CDNs and performance-minded sites have adopted it so quickly.
That efficiency is a website's problem to enjoy, not yours. Save an AVIF to your computer and you discover how young the format is: Windows Photos needs an extension, most desktop editors either ignore it or open it slowly, print services do not accept it, and older phones show a blank thumbnail. Converting AVIF to JPG trades a great deal of that efficiency for the ability to actually use the picture.
Typical reasons to convert
- Product images downloaded from a supplier's modern storefront that need to go into a listing or a catalogue.
- Reference pictures saved for a design project that must open in an editor without extra plug-ins.
- Screenshots and illustrations for a document, presentation or report.
- Photographs being sent to someone whose device or email client shows AVIF as a broken file.
- Uploads to any system whose accepted-formats list was written before 2020.
Expect the file to grow
Converting from AVIF to JPG almost always increases the file size, often by two to four times. This is the direct consequence of leaving a more advanced codec for an older one. There is no setting that avoids it; JPEG simply needs more bytes to describe the same picture at the same visual quality.
If the destination is a web page and the size increase matters, consider staying with a modern format and serving WEBP as a fallback instead, since WEBP support is now close to universal. If the JPG is what you need but it is heavier than you would like, the JPG compressor can trim it further, and the image resizer will do more than any codec choice if the image is larger than it needs to be.
Transparency and colour handling
AVIF supports an alpha channel, and JPEG does not. Any transparent area is painted with the fill colour you select before encoding, so choose the colour of the background the image will finally sit on. Leaving it white is fine for documents and most web pages.
AVIF also supports high dynamic range and wide colour gamuts. When your browser decodes such a file for a canvas it maps the result into standard dynamic range, which is the correct behaviour for a JPEG destination but does mean an HDR original will look slightly flatter than it did on a capable display. Nothing on this page can preserve HDR in a JPG, because the format has no way to represent it.
Everything happens in your browser
Your AVIF file is decoded by the browser's own codec, redrawn onto an off-screen canvas and encoded as JPEG in local memory. No copy is uploaded, so nothing is stored or logged anywhere, and the conversion runs at the speed of your own hardware rather than a shared queue. The companion AVIF to PNG converter works identically when you need a lossless result with transparency intact.