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Video format

.flv

Flash Video

FLV was the dominant web video format during the Flash era. While Flash is dead, FLV files still exist in archives and legacy systems. Converting FLV to MP4 is one of the most common conversion needs.

MIME type

video/x-flv

Developer

Adobe (Macromedia)

Introduced

2003

Advantages

  • Very small file sizes
  • Fast to decode
  • Was the web video standard
  • Simple container format

Limitations

  • Flash Player is discontinued
  • Limited browser support
  • Outdated codec support
  • No modern features

When to use FLV

Converting old web videos
Legacy content archives
Flash game recordings
Historical web content preservation

Technical details

FLV contains video encoded in Sorenson Spark or VP6 (FLV1) or H.264 (FLV4) with MP3 or AAC audio. The format uses a simple tag-based structure.

Convert FLV to other formats

7 conversion options available

FLV to MP4FLV to WebMFLV to MOVFLV to AVIFLV to MKVFLV to WMVFLV to 3GP

Convert to FLV from other formats

7 formats can be converted to FLV

MP4 to FLVWebM to FLVMOV to FLVAVI to FLVMKV to FLVWMV to FLV3GP to FLV

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Other video formats

.mp4MP4

MPEG-4 Part 14

.webmWebM

Web Media

.movMOV

QuickTime Movie

.aviAVI

Audio Video Interleave

.mkvMKV

Matroska Video

.wmvWMV

Windows Media Video

.3gp3GP

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