Step 1: Provide your JPG files using the button above or by toss and let go.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Fetch your converted JFIF files.
JPG to JFIF Conversion FAQ
Does JPG to JFIF conversion preserve transparency?
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Transparency survives when JFIF is PNG, WebP, TIFF, GIF, or SVG. Converting to JPG flattens the alpha channel against a white background — if you need transparency, pick a transparency-aware target instead of JFIF. JFIF is the JPEG File Interchange Format — the header specification that makes a raw JPEG bitstream into a portable file.
Will my CMYK colour survive the conversion to JFIF?
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It is converted to sRGB, because JFIF has no CMYK mode. For screen use that is exactly what you want. For commercial print it is not — the gamut shift changes how saturated colours reproduce on press, so send the printer the original JPG rather than the JFIF. The .jfif extension confuses Windows and many web apps into refusing the file, which is usually the only reason anyone converts it.
What happens to EXIF metadata when converting JPG to JFIF?
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In most conversions, camera EXIF fields such as the camera model and GPS position are not carried into the JFIF. There is no setting on this page to keep or remove metadata, so check the result with a metadata viewer if it matters.
Can I batch-convert hundreds of JPG files to JFIF at once?
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Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
Are my JPG files private during conversion?
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Yes. Uploaded JPG files are processed on our own conversion servers, no person reviews them, and they are never shared. The upload and the converted JFIF are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
Why is my converted JFIF file bigger or smaller than expected?
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A JPG file with strong compression (heavily lossy JPG) often grows when re-encoded into a lossless JFIF (PNG, TIFF), and a high-bitrate lossless JPG often shrinks dramatically when going to JPG/WebP. The ratio depends on the image content (photos compress differently from line-art or screenshots). JPG has no transparency, degrades further every time it is re-saved, and produces visible blocking on flat colour and sharp text.
