X3F is the RAW image format used by Sigma cameras with Foveon X3 sensors.
UYVY is a YUV 4:2:2 packed pixel format commonly used in video capture and processing.
FreeFileConvert uses tuned encoding for X3F to UYVY conversions, preserving clarity while trimming file size. Finished images open instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload X3F files from desktop or tablet, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized UYVY results on any device you rely on.
Process up to 5 files sized 1024 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent UYVY images with dependable progress tracking.
X3F files contain three-layer sensor data from Sigma Foveon sensors.
UYVY stores color data as U0Y0V0Y1 sequences, halving horizontal chroma resolution.
Upload your image file in the X3F format from your device.
Select UYVY as the output format and click Convert. Adjust optional settings if needed.
Download the converted image file. Each file stays available for up to 5 downloads.