Image Conversion
Convert BMP to X3F Online — Free
Fast, free BMP to X3F converter. No registration required.
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Works Everywhere
Any browser, any device
How to Convert
1
Upload your .bmp file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .x3f file when it's ready.
What is BMP?
BMP is a simple, uncompressed image format native to Windows. It provides perfect quality but results in very large file sizes.
Format Details
- Full Name
- Bitmap Image
- Extension
- .bmp
Key Features
- Uncompressed
- Windows native
- Perfect quality
- Simple format
What is X3F?
X3F is Sigma's proprietary RAW format for cameras using the unique Foveon X3 sensor, which captures all three color layers at every pixel location unlike conventional Bayer sensors.
Format Details
- Full Name
- Sigma/Foveon RAW
- Extension
- .x3f
Key Features
- Foveon X3 sensor
- Full-color pixels
- Sigma cameras
- Unique color capture
BMP vs X3F
| Feature | BMP | X3F |
|---|---|---|
| Full Name | Bitmap Image | Sigma/Foveon RAW |
| Extension | .bmp | .x3f |
| Best For | Uncompressed | Foveon X3 sensor |
Frequently Asked Questions
Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.