X3F Converter

Convert X3F files online for free.

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How to Convert a X3F file?

Click the “Choose Files” button to select your X3F files.
Then select a target format and click the "Convert" button
Once the conversion finishes, click the "Download" button to save the file.

Convert Any File

FreeConvert supports 500+ file formats. Simply upload your X3F files and select a popular file format to convert them to. Easily share your X3F files (in a widely supported format) after conversion.

Best Quality

We use both open-source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional).

Free & Secure

Our X3F converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.

What is an X3F (SIGMA X3F Raw) file?

SIGMA X3F is the raw file format produced by Sigma cameras that use the Foveon X3 sensor. Unlike a conventional Bayer sensor, Foveon records red, green, and blue at every pixel location in three stacked layers, so an X3F stores three full colour measurements per pixel. This produces exceptionally sharp detail and colour accuracy, and it is also why X3F files are unusually large and demand Sigma-aware software.

How to open an X3F file?

The definitive application is Sigma’s SIGMA Photo Pro, which is the only program that fully understands the Foveon layer structure and delivers the intended colour.

Adobe Lightroom and RawTherapee can open many X3F files, though results vary by camera model, and XnView MP is handy for browsing. A common workflow is to develop the X3F in SIGMA Photo Pro, export a TIFF, and finish the edit elsewhere. You can also convert the file with our X3F to JPG tool.

Developed by: Sigma Corporation

Initial Release: 2002

Convert X3F to other file types

Freeconvert.me can convert your X3F files to these other formats:

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