Downloaded an AVIF image that your editor, printer or upload form won't open? Convert one AVIF — or a whole batch — to JPG in seconds.
Multiple files welcome — converted locally, never uploaded
AVIF compresses beautifully, which is why more websites and cameras serve it — but support outside the browser is still patchy. Older photo editors, office software, print services, ID and visa photo portals, and some marketplace uploaders reject AVIF outright. JPG remains the format everything accepts, so converting back to JPG is the reliable fix when a file "won't open" or an uploader says the format is not supported.
Your browser decodes each AVIF image and re-encodes it as a high-quality JPG (quality 0.92, transparent areas flattened to white) entirely on your device. Nothing is uploaded to a server, so converting personal photos, screenshots or client work stays private — and there is no queue, no daily cap and no watermark.
1. Add your files. Drop one or more AVIF images onto the box above, or click it and pick them from your device. Each file appears in a list with its original size. 2. Wait a moment. Conversion starts automatically — there is no Convert button to hunt for and no settings to configure; every file is encoded at quality 0.92, the point where a JPG looks identical to the original in normal viewing. 3. Download each JPG. When a row finishes, its status turns into a download button showing the new file size. Save the files wherever you need them — the originals on your device are never changed or deleted.
AVIF is the newer format, built on the AV1 video codec, and it is genuinely better at squeezing photos: sharper detail at smaller sizes, support for HDR colour and for transparency. JPG is decades older and less efficient, but it has one advantage that still decides real-world tasks — everything opens it. Every operating system, editor, printer, scanner app, marketplace, school portal and government form built in the last twenty years accepts JPG without a second thought. That is why the practical rule is simple: keep AVIF for storage and for websites that serve it well, and convert to JPG the moment a file has to travel somewhere you do not control.
Because AVIF compresses more efficiently, expect the JPG to come out larger — commonly one-and-a-half to two times the AVIF's size for a photo, and sometimes more for images with fine detail or film grain. That growth is normal and is not a sign of added quality; the information in the JPG can never exceed what the AVIF held. What you are buying with those extra kilobytes is compatibility. Visually, the conversion is a single high-quality re-encode, so for photographs, screenshots and web graphics the result is effectively indistinguishable from the source. If a destination has its own size cap — a portal that wants a JPG under, say, 200 KB — run the converted file through the Exact-KB Compressor on this site to land it precisely under the limit.
The tool says my browser cannot read the file. This converter relies on your browser's built-in AVIF decoding, so a very old browser version may fail where a current one succeeds. Updating your browser, or opening this page in a recent version of Chrome, Edge or Firefox, resolves almost every case. The file is not really an AVIF. Some files carry an .avif name after being re-saved by another app in a different format; if the browser cannot decode it, open it in any image viewer that displays it correctly and export it again, then convert the fresh copy. Colours look slightly different afterwards. Wide-gamut and HDR AVIF images are mapped to standard JPG colour on conversion, which can soften the most extreme highlights — an unavoidable part of moving to a format that predates HDR, and invisible on ordinary photos.
Will the JPG be bigger than the AVIF? Usually yes. AVIF is a newer, more efficient format, so the same picture in JPG typically takes more space. That is the trade-off for a file that opens everywhere.
Will quality drop? JPG is lossy, so a re-encode is never perfectly identical — at quality 0.92 the difference is invisible for normal photos and screenshots.
My AVIF has transparency — what happens? JPG has no transparency, so transparent areas are placed on white, the standard behaviour for this conversion. If you need the transparency kept, convert to PNG instead.
Is there a file limit? No account and no daily cap. Very large batches are limited only by your device's memory.