GXF to MKV - Online Video Converter
Convert GXF to MKV online. Private, client-side - no upload required. Batch conversion, quality presets, codec control.
About GXF to MKV
Convert GXF to MKV. GXF is the Grass Valley server format for broadcast playout. MKV is an open container holding multiple video, audio, and subtitle tracks. Only the selected tracks carry over, so pick audio and subtitles first..
Why convert GXF to MKV?
- Smaller files with MKV lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
GXF vs MKV
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | Yes |
| Compression | lossy | lossy |
| Typical use | GXF is the Grass Valley server format for broadcast playout. | MKV is an open container holding multiple video, audio, and subtitle tracks. |
When not to convert GXF to MKV
- Skip MKV for archival masters: lossy compression discards detail, so keep the GXF original.
- Keep a master copy: repeated exports stack small losses, so archive GXF before batch MKV shares.
Limits
Starting point: GXF - GXF is the Grass Valley server format for broadcast playout. Server metadata drops on export; the picture and sound carry over. Only the selected tracks carry over, so pick audio and subtitles first. Encode MKV (H.264 / AAC) from GXF at a bitrate near the source, and confirm the audio track before converting.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.