X3F to WebP Converter

Convert X3F to WebP online, for free.

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By proceeding, you confirm you own the rights to the files you upload and agree to our Terms of Use.

Advanced settings (optional)

Resize Output Image

Choose how to set the output size: keep the original, enter a width or height and we'll keep the aspect ratio, enter both dimensions, or scale by a percentage. Use "Keep original" to leave its dimensions unchanged.

Lossless compression?

Lossless compression? Enable this option to compress the output WebP image without any quality loss

Enable this option to compress the output WebP image without any quality loss

Image Quality

Lower values yield better compression but lower image quality. Default (92) is a good balance between image quality and compression.

Compression Speed

Lower values compress the image faster at the expense of lower compression quality and bigger file size.

Auto Orient

Auto Orient Correctly orient the image using the gravity sensor data stored in EXIF

Correctly orient the image using the gravity sensor data stored in EXIF

Strip Metadata

Strip Metadata Strip the image of any profiles, EXIF, and comments to reduce size

Strip the image of any profiles, EXIF, and comments to reduce size

How to Convert X3F to WebP?

Click the “Choose Files” button to select your X3F files.
Click the “Convert to WebP” button to start the conversion.
When the status change to “Done” click the “Download WebP” button

Easy to Use

Simply upload your X3F files and click the convert button. You can also batch convert X3F to WebP format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our X3F to WebP Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.

What is an X3F (SIGMA X3F Raw) file?

SIGMA X3F is the raw file format produced by Sigma cameras that use the Foveon X3 sensor. Unlike a conventional Bayer sensor, Foveon records red, green, and blue at every pixel location in three stacked layers, so an X3F stores three full colour measurements per pixel. This produces exceptionally sharp detail and colour accuracy, and it is also why X3F files are unusually large and demand Sigma-aware software.

How to open an X3F file?

The definitive application is Sigma’s SIGMA Photo Pro, which is the only program that fully understands the Foveon layer structure and delivers the intended colour.

Adobe Lightroom and RawTherapee can open many X3F files, though results vary by camera model, and XnView MP is handy for browsing. A common workflow is to develop the X3F in SIGMA Photo Pro, export a TIFF, and finish the edit elsewhere. You can also convert the file with our X3F to JPG tool.

Developed by: Sigma Corporation

Initial Release: 2002

What is a WebP file?

WebP is an open-source file type that uses predictive compression to create images that are ideal for web pages and mobile applications. WebP images are as much as 30 percent smaller than JPEG (JPG) and Portable Network Graphics (PNG) files, with similar visual quality. WebP images load quickly on web pages and mobile applications.

How to open a WebP file?

The default program for opening WebP is Google Chrome (Chrome), which works across platforms. WebP files also open automatically on GIMP and Microsoft Paint. Besides Chrome, all other web browsers support the WebP format.

Alternative free viewers to try are Pixelmator and Photopea. Also, try Corel PaintShop Pro. Prior to using IrfanView, Windows Photo Viewer, and Adobe Photoshop, be sure to install the plugins for opening WebP.

Developed by: Google

Initial Release: September 2010

Useful links:

Google Developer article on WebP compression

Related WebP Tools:

Use our Color Picker to pick colors from WebP images

Convert other files to WebP format

Freeconvert.me can convert your other files to WebP format:

Convert Your X3F files to other formats

Freeconvert.me can convert your X3F files to these other formats:

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