Compare formats
MP4 vs FLV
MP4 is the modern standard for video delivery, while FLV is mainly a legacy web video format from older Flash-era workflows. Today the comparison is mostly about current relevance versus old archive compatibility.
What is MP4?
MP4 is the all-purpose video format used across modern apps, devices, and websites.
- • Modern standard
- • Excellent compatibility
- • Great sharing support
What is FLV?
FLV is an older web video format from Flash-based delivery systems and legacy online media.
- • Legacy web video
- • Archive migration use
- • Outdated for most modern workflows
MP4 vs FLV: Key Differences
Feature
MP4
FLV
Modern relevance
Excellent
Low
Legacy archive relevance
Good
Excellent
Compatibility
Excellent
Lower
Sharing ease
Excellent
Lower
Best use
Current playback
Legacy web archives
When to use MP4
Use MP4 for nearly all modern delivery, playback, upload, and cross-platform video tasks.
When to use FLV
Use FLV only when you specifically need to preserve or handle old Flash-era media.
Convert between MP4 and FLV
Once you know which format suits your workflow better, you can convert in either direction or open the related format guides for more context.