Is the CMYK to sRGB JPG Converter free?
Yes. This tool is free to use with no sign-up, and it runs entirely in your browser.
Does it upload my image to a server?
No. Color normalization and export happen locally in your browser, so the image stays on your device.
What if my JPG is already standard RGB?
The tool will say so and can still rebuild the file into a clean sRGB JPG if you want a normalized version.
Why do my print JPEGs look wrong online?
JPEGs exported for print are often stored in CMYK or YCCK color, which most web software does not expect, so they can look washed out or oddly tinted until converted to sRGB.
What format do I get back?
You get a standard sRGB JPG, rebuilt from your source file so it displays correctly on the web.
How do I know if my JPG is really CMYK?
Drop it in and read the status line. The tool inspects the JPEG's own structure, counting the color components in the SOF marker and reading the Adobe APP14 transform byte. Four components means CMYK, and a transform value of 2 means YCCK, which is CMYK with a luma transform applied. Anything else comes back as RGB or unknown.
Will the colors match the original exactly?
No, and no browser-based conversion can promise that. A faithful CMYK to sRGB conversion needs the source's ICC profile, a rendering intent, and a destination profile. This does a direct numeric conversion, which is right for getting the image onto the web looking correct. It is not a substitute for a proofing workflow.
Why does my CMYK JPG look inverted rather than just wrong?
Because of the Adobe APP14 marker. Adobe writes CMYK JPEGs with inverted values, and a decoder that ignores the marker reads them straight and produces a negative. That is the classic symptom of a CMYK JPEG opened by software that does not know what to do with it. The conversion reads that marker and handles it, which is why the output looks correct.
What if my file is already a normal RGB JPG?
The status will say so, and the conversion still runs. You get a re-encoded baseline sRGB JPG at 90% quality, which is harmless but pointless and costs you one generation of compression. If the status does not say CMYK or YCCK detected, the file was not the problem and you should look elsewhere.
Is the file uploaded to be converted?
No. The JPEG bytes are parsed, decoded, and re-encoded inside the page, which is why this works on a print-house file you are not free to share. The only network call is a credit counter that carries the tool name.