About the X3F file format
Sigma RAW (X3F) is a camera RAW format that retains image data captured by a digital camera. RAW files are normally converted to a standard image format before sharing or publishing.
On jpg.now, the format guide and converter lists below are generated from the same live converter catalog. That means every conversion shown here is an available workflow involving X3F files.
Why X3F files are used
Sigma RAW is a camera-oriented RAW format used to retain image data captured by a sensor before a final photograph is rendered.
RAW files provide editing latitude for exposure, white balance and colour, but they normally need to be developed in compatible software before everyday viewing or sharing.
What to know about X3F
Camera-origin data
X3F is intended as a source for photographic development rather than a finished delivery image.
Editing latitude
RAW workflows usually preserve more tonal and colour information than an already-rendered delivery file.
Rendering required
A RAW processor interprets sensor data, camera settings and colour information to produce a viewable image.
Metadata-rich
Camera model, capture settings, timestamps and other photographic metadata may accompany the image data.
Larger source files
RAW files prioritize retained capture information and are commonly larger than delivery-oriented JPG images.
Software-dependent
Support can depend on the exact camera model, codec version and RAW engine used by the application.
How X3F conversion works
Converting X3F requires developing the RAW capture into rendered pixels, then encoding those pixels in the destination format. Default processing choices influence colour, tone and sharpness.
The converted image is suitable for viewing and sharing, but it is not a replacement for the original RAW capture when future editing flexibility matters.
jpg.now currently accepts X3F as a source format and converts it to supported outputs. This page lists 1 available conversion involving the format.
X3F compatibility and software support
RAW compatibility depends on the camera, file variant and decoder. Professional photo applications tend to support more RAW formats than browsers, messaging apps and basic image viewers.
A JPG output is broadly compatible and convenient for delivery. Keep the X3F source if you may revisit exposure, colour or other development decisions.
Before deleting or replacing a source file, confirm that the converted format preserves the visual quality and features required by the receiving application.
X3F compared with related formats
These formats belong to the same broad format family: Camera RAW. The table compares their role in the current jpg.now converter catalog.
When should you use X3F?
- Photo review: Create a viewable proof or preview from a camera capture.
- Client delivery: Export a broadly compatible rendered copy for sharing or approval.
- Web publishing: Prepare a camera image for a website or online platform.
- Archive workflow: Retain the RAW original while producing smaller access copies.
Convert X3F files on jpg.now
jpg.now currently accepts X3F as a source format and converts it to supported outputs. Choose a converter below based on whether you want to open a X3F source or create a X3F output.
Convert from X3F
Use a X3F file as the source.
X3F file format FAQ
What is a X3F file?
Sigma RAW (X3F) is a camera RAW format that retains image data captured by a digital camera. RAW files are normally converted to a standard image format before sharing or publishing.
Can jpg.now convert X3F files?
Yes. This page lists all 1 currently available jpg.now conversion that accept or create X3F files.
Which converters involve X3F?
Use the Convert from X3F and Convert to X3F sections on this page to choose an available direction.
What changes when a X3F file is converted?
Converting X3F requires developing the RAW capture into rendered pixels, then encoding those pixels in the destination format. Default processing choices influence colour, tone and sharpness.
Should I keep the original X3F file?
Yes, when the file matters. A converted copy can be easier to use, but it may not retain every capability, editing feature or piece of metadata available in the original X3F file.