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X3F to TIFF Converter

Convert X3F to TIFF online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

01

Upload your file

Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

02

Choose an output format

Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

03

Convert & download

Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

What is an X3F file?

The X3F file extension represents a raw image format generated exclusively by Sigma digital cameras utilizing the Foveon X3 direct image sensor. Unlike traditional Bayer filter sensors that interpolate color data, the Foveon X3 captures red, green, and blue light at every pixel location in three vertical layers of silicon. The X3F file contains this uncompressed or losslessly compressed raw sensor data alongside a JPEG preview and proprietary metadata, requiring specific demosaicing algorithms to interpret the vertical color information.

How to open an X3F file

Processing X3F files requires specialized raw conversion software capable of interpreting Foveon sensor data. Sigma's proprietary software, Sigma Photo Pro, provides the most accurate rendering. Third-party support is available in Adobe Lightroom (via Camera Raw) and open-source alternatives like Darktable and RawTherapee. Standard operating system image viewers generally cannot decode the raw X3F stream and will often only display the embedded JPEG thumbnail.

X3F Technical Info

Full Name
Sigma X3F Raw Image
Developed By
Sigma Corporation
Initial Release
2002
MIME Type
image/x-x3f

What is a TIFF file?

The Tagged Image File Format (TIFF) is a container format for storing raster graphics images, originally created by Aldus Corporation in 1986 and currently controlled by Adobe Systems. Ideally suited for photography and desktop publishing, TIFF supports multiple color spaces (CMYK, RGB, Lab), various compression schemes (lossless LZW, Deflate, or lossy JPEG), and data tags that define image geometry. It conforms to the TIFF 6.0 specification and can accommodate multi-page documents and extensive metadata standards like Exif, IPTC, and XMP within its header structure.

How to open a TIFF file

Due to its status as a standard industry format for high-quality imaging, TIFF files possess robust native support across major operating systems, including Microsoft Windows Photos and macOS Preview. For advanced editing and layer manipulation, professional raster graphics editors such as Adobe Photoshop, GIMP, and CorelDRAW are required. Specialized viewing software like IrfanView or XnView can also render multi-page TIFFs that standard system viewers may display incorrectly.

TIFF Technical Info

Full Name
Tagged Image File Format
Developed By
Aldus Corporation (now Adobe)
Initial Release
1986
MIME Type
image/tiff

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Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

Convert X3F to TIFF in seconds

Every X3F to TIFF conversion runs on our servers, so your device stays fast and the output quality stays intact.

Fast, cloud-powered

No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

Secure & private

Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

Free - no account needed

Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.

Developer API

Convert X3F to TIFF via API

Automate X3F to TIFF conversions in three steps: create a job, upload your file, then poll for the result.

# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tag": "x3f-to-tiff",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "tiff"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.x3f

# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
  -H "Authorization: Bearer YOUR_API_KEY"

Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.