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FLV at a glance
FLV
FLV is inseparable from the Flash era of online media, when browser plugins rather than native video elements dominated streaming video experiences.
MKV at a glance
MKV
Matroska developed a strong reputation in enthusiast and archiving communities before later being formalized through IETF standardization.
Format comparison
| Feature | FLV | MKV |
|---|---|---|
| File type | Video | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2002 | 2002 |
| Inventor | Macromedia / Adobe | Matroska |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Multitrack support | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Supported | Supported |
When to use each format
When to use FLV
- Your source file is already in FLV.
- Preserve source expectations before exporting to MKV.
- FLV is commonly used in video workflows.
When to use MKV
- Your target workflow expects MKV.
- Improve delivery compatibility with MKV.
- MKV is commonly used in video workflows.
FAQs
Why convert FLV to MKV?
Convert to MKV when you need multiple tracks, subtitle support, chaptering, or less common codec combinations in a single container.
It is ideal for archival masters, media-library organisation, multilingual releases, and technical video handoff.
For mainstream web playback and easiest consumer sharing, MP4 is usually simpler.
What changes when converting FLV to MKV?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting FLV to MKV?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.