View X3F File files directly in your browser. No installation, no account. 100% private — files never leave your device.
Drop your file to view it instantly
or click to browse from your device
Desktop: up to 50MB · Mobile: up to 20MB
Works entirely in your browser — no software installation required
100% private — files never leave your device or touch any server
Completely free with no account or registration required
Mobile-friendly — works on phones, tablets, and desktops
Accurately renders X3F files entirely in your browser
Instant file loading — no server upload or processing delay
Sigma camera RAW format using Foveon sensor
Captures maximum sensor data from camera
Non-destructive — original data always preserved
Allows full color grading and post-processing control
Very large file sizes compared to processed formats
Requires RAW-compatible software to open
Camera-specific formats may have limited tool support
Professional photography post-processing
Color grading and HDR photo development
Archiving original unprocessed sensor data
Studio and editorial photography workflows
Always convert from RAW rather than processed JPEG for maximum editing latitude
Store RAW originals before exporting to JPEG or TIFF for final delivery
Use TIFF for lossless output when maximum quality post-processing is required
DNG provides a universal open alternative to proprietary RAW formats
Drag & drop your .x3f file, or click to browse
Your file opens instantly — no upload or server
Save the original file anytime with one click
Yes, completely free. View any X3F file with no limits, no sign-up, and no software installation required.
Your X3F file is processed entirely in your browser using client-side JavaScript. It never leaves your device, is never uploaded to any server, and is cleared when you close the tab.
Yes. After viewing, you can convert your X3F file to another format using our free X3F converter linked below.
Free, instant, and 100% private. Your files are processed locally in your browser.