You save an image off a website, double-click it, and your photo editor just shrugs: "unsupported format." Or the print shop emails back to say they can't open the file you sent. Nine times out of ten the culprit is AVIF, the compact modern format that phones, cameras, and websites increasingly hand you without asking. The fix is boring and dependable: turn it into a JPG, the format nothing has refused since the 1990s.
Here's the part most people don't expect, though. Converting to JPG usually makes the file bigger, not smaller.
The trade you're actually making
AVIF (AV1 Image File Format) is a recent format built around aggressive compression, packing a photo into remarkably few bytes. JPG (JPEG) has been around for decades and is understood by essentially every device, app, and service ever made. Swapping one for the other isn't an upgrade so much as a swap of clever compression for universal reach, and two things ride along with it:
- Expect the JPG to weigh more than the AVIF it replaced, sometimes a lot more. AVIF is simply better at the squeezing.
- JPG has no concept of transparency. Any see-through pixels in your AVIF have to be painted over with a solid color, or they'll come out looking broken.
Neither one ruins the plan. You just want to see them coming so the output matches what you had in mind.
Converting your files
The AVIF to JPG Converter on Every Boring Tool does the whole job on the machine in front of you. The decoding and re-encoding happen through a canvas inside the page itself, so your images stay on your own drive — nothing is shipped off to be processed, and no account or watermark stands between you and the finished file.
Walk through it
- Open the AVIF to JPG Converter.
- Drop your AVIF onto the drop zone, or click to browse. Grab one file or a whole pile at once — and since PNG, JPG, and WebP are accepted too, a mixed selection is fine.
- Move the JPG quality slider anywhere from 30 to 100. It starts at 92, a sensible sweet spot for photographs: crisp, without a bloated file.
- Got transparency? Pick a background color to fill those areas, since the JPG can't carry them through. White is the usual pick; choose whatever suits where the image will live.
- Look over the preview and the size readout. It lays out the original total, the JPG total, and the percentage change, so nothing about the result is left a mystery.
- Hit Download JPG for a single image, or Download all as ZIP once you've converted a batch.
Nudge the quality or the background color and the tool re-converts the same files on the spot — no need to reselect anything to try a different look.
Which quality number to pick
The slider decides how hard the JPG leans on compression. Bigger numbers hold more detail and produce bigger files.
- 90 to 95 suits most photos you want looking their best.
- 75 to 85 shaves the size down for email or a web page, usually with loss you'd struggle to spot.
- Under 60 is where blockiness creeps in — around text, hard edges, and flat stretches of color especially. Reach for it only when file size beats fidelity.
Keep in mind that JPG compression is lossy, so the conversion can only carry forward the detail the AVIF already held; it can't invent any back. Bounce a photo between formats over and over and it visibly wears down, so hang on to an original if you might edit it again later.
Where this converter runs out of road
The tool leans on your browser's own ability to read AVIF, which recent builds of Chrome, Edge, Firefox, and Safari all have. When a file refuses to convert, an out-of-date browser that can't decode AVIF is the usual reason, and updating it tends to clear the problem. Select several files and have only some choke? It converts the ones it can and tells you plainly which got skipped.
That said, a few jobs belong elsewhere:
- You need the transparency to survive. Send it to a PNG or WebP converter instead — JPG will flatten it every time.
- You're chasing the smallest possible web file. JPG isn't the lean option here; WebP, or simply keeping the AVIF, may serve the page better.
- You need print- or color-managed output with specific ICC profiles or CMYK. That's a job for a proper image editor, not a quick converter like this one.
- You're pushing thousands of images through an automated pipeline. At that volume a command-line tool or script will outrun any browser.
But for the ordinary errand — a few AVIFs you need as plain JPGs this minute, without handing them to anyone — doing it locally is the short path, and the downloads are ready in seconds.