x3f-converter - OctoConvert — Free Online File Converter

X3F Converter

Convert to X3F format online unlimited, for free.

🎯 Convert To
📸 JPEG / JPG
🖼️ PNG
🎬 GIF
🎨 BMP
📄 TIFF / TIF
🚀 WEBP
AVIF
🔷 ICO
🎭 PSD
✏️ SVG
📕 PDF
🍎 HEIC / HEIF
🎯 Output Quality 90%
💾 Small ⚖️ Balanced 💎 Best
🎨

Drop Your Images Here

JPG, PNG, GIF, SVG, PDF, HEIC, ICO, PSD, BMP, TIFF, WEBP, AVIF

Converting...

How to Convert a X3F file?
  1. Click the “Choose Files” button to select your X3F files.
  2. Then select a target format and click the “Convert” button.
  3. Once the conversion finishes, click the “Download” button to save the file
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Convert Any File

OctoConvert 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.

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Quality Preserved, Size Reduced

Our smart compression engine keeps image colors, sharpness, and details untouched. You get the smallest possible file size without losing visual quality. Perfect for web use, speed optimization, and storage saving.

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What is an X3F file?
An X3F file is a raw image format used by Sigma digital cameras (especially those with Foveon X3 sensors, e.g., SD9, SD14, SD1, fp). It stores unprocessed sensor data — capturing full RGB values at each pixel (unlike Bayer sensors) — along with JPEG previews, metadata, and often a thumbnail. X3F enables high color fidelity and detail, unique to Foveon technology.

 

What is an X3F file used for?

  • Professional photo editing with Foveon sensor advantages (no demosaicing)
  • Archiving high-fidelity captures from Sigma cameras
  • Maximizing detail and color accuracy in post-processing
  • Workflow in Sigma Photo Pro, Adobe Lightroom, and Capture One
 

How to open an X3F file?

  • Sigma Photo Pro (official, best color rendering)
  • Adobe Photoshop / Lightroom (Camera Raw ≥ 7.1)
  • Capture One Pro
  • RawTherapee, Darktable
  • IrfanView (with plugin)
 

Is an X3F file an image file?
Yes — but a raw one. Requires processing to produce a viewable image (e.g., JPEG, TIFF).

 

File format details

  • Format type: Raw camera image
  • Data stored: Foveon X3 sensor data (RGB per pixel), EXIF, JPEG preview
  • Primary use: Photography (Sigma Foveon cameras)
  • Platforms: Windows, macOS, Linux

Convert X3F to other file types

octoconvert.com can convert your X3F files to these other formats:

• X3F to JPG
• X3F to TIFF
• X3F to PNG
• X3F to JPEG
• X3F to HDR
• X3F to PSD
• X3F to FTS
• X3F to JP2
• X3F to BMP
• X3F to WBMP
• X3F to GIF
• X3F to TGA
• X3F to SVG
• X3F to PCX
• X3F to ICO
• X3F to CUR
• X3F to PBM
• X3F to PGM

• X3F to PPM
• X3F to WEBP
• X3F to EXR
• X3F to FAX
• X3F to G3
• X3F to HRZ
• X3F to IPL
• X3F to MAP
• X3F to MNG
• X3F to MTV
• X3F to OTB
• X3F to PAL
• X3F to PALM
• X3F to PAM
• X3F to PCD
• X3F to PCT
• X3F to PDB
• X3F to PFM

• X3F to PICON
• X3F to PICT
• X3F to PNM
• X3F to RAS
• X3F to RGB
• X3F to RGBA
• X3F to RGBO
• X3F to SGI
• X3F to SUN
• X3F to UYVY
• X3F to VIFF
• X3F to XBM
• X3F to XPM
• X3F to XV
• X3F to XWD
• X3F to YUV
• X3F to JBG
• X3F to JBIG

• X3F to HEIC
• X3F to HEIF
• X3F to G4
• X3F to RGF
• X3F to SIX
• X3F to SIXEL
• X3F to VIPS
• X3F to JPS
• X3F to JPE
• X3F to JIF
• X3F to JFIF
• X3F to JFI
• X3F to DDS
• X3F to PGX
• X3F to AVIF
• X3F to PDF
• X3F to DOC

• X3F to DOCX
• X3F to DOT
• X3F to DOTX
• X3F to DOTM
• X3F to DOCM
• X3F to RTF
• X3F to ODT
• X3F to DJVU
• X3F to AZW3
• X3F to EPUB
• X3F to FB2
• X3F to LRF
• X3F to MOBI
• X3F to RB
• X3F to SNB
• X3F to TCR
• X3F to ABW

• X3F to DBK
• X3F to KWD
• X3F to SXW
• X3F to AW
• X3F to XPS
• X3F to OXPS
• X3F to AI
• X3F to EPS
• X3F to PS
• X3F to EMF
• X3F to WMF
• X3F to CGM
• X3F to SK
• X3F to SK1
• X3F to PLT
• X3F to FIG
• X3F to DXF

Important Images Tools

octoconvert.com can convert your files to these related formats:

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Compress without losing quality.
JPEG, JPG, PNG, GIF, BMP, TIFF, SVG, WebP, HEIC, ICO, X3F, RAW, & more

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Free image cropping JPEG, PNG, GIF, BMP, TIFF, WebP, HEIC, SVG, X3F, RAW & more

Image size detect

Detect the exact size of any image instantly! JPEG, PNG, GIF, BMP, TIFF, WebP, HEIC, SVG, X3F, RAW, & more

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image Resizer

Resize any image instantly! Supports all formats: JPEG, PNG, GIF, BMP, TIFF, WebP, HEIC, SVG, X3F, RAW, & more

PDF to Image

Convert any PDF to high-quality images instantly! JPEG, PNG, GIF, BMP, TIFF, WebP, SVG, and more

Image to PDF

Convert any image to PDF instantly! JPEG, PNG, GIF, BMP, TIFF, WebP, SVG, X3F, RAW, and more.

IMAGE TO DOC/DOCS

Convert any image to editable DOC/DOCX instantly! JPEG, PNG, GIF, BMP, TIFF, WebP, SVG, X3F, RAW, and more

DOC/DOCS to Image

Convert any DOC/DOCX file to high-quality images instantly! JPEG, PNG, GIF, BMP, TIFF, WebP, SVG, & more

Your Data, Fully Protected with OctoConvert

 At OctoConvert, we do more than just convert your files—we safeguard them. Whether you’re converting images, PDF videos, or documents, our advanced security measures ensure your data stays private and secure. With end-to-end encryption, secure data centers, and 24/7 monitoring, we make sure your files are protected at every step. Trust OctoConvert for fast, safe, and reliable file conversions online.