Tools / File Converter / X3F to DDS Converter

X3F to DDS Converter

Convert X3F files to DDS. Batch, free and without uploading.

This tool converts X3F files to DDS. X3F is the RAW format of Sigma cameras. It keeps unprocessed sensor data; conversion uses the camera’s white balance and colour settings.

DirectX texture format. DDS is lossless, so nothing is lost from the image during conversion. RAW files are large, so each photo may take a few seconds.

Conversion happens inside your browser; your files are never sent to a server.

How to use

1. Drag and drop your X3F files, paste them from the clipboard, fetch one from a link, or use "Choose files".
2. Optionally set a maximum width and height.
3. Press "Convert" and download the DDS files one by one or as a ZIP.

Frequently asked questions

Will converting to DDS reduce quality?

No. DDS is lossless; the image in your X3F is carried over as it is.

How many files can I convert at once?

There is no limit. Select hundreds of files together and download the results as one ZIP.

Are my files uploaded anywhere?

No. Your X3F files are converted to DDS inside your browser and never sent to a server.