Convert FLV to AVI Online

About FLV (source)

FLV (Flash Video) was the standard for web video before HTML5. Flash Player is discontinued, so FLV files no longer play in browsers. FLV typically contains H.264 or VP6 with MP3 or AAC audio and survives mainly in old downloads.

Where FLV shows up:

• Recovered Flash-era website downloads
• Legacy streaming server archives
• Old live stream recordings
• Historical web media preservation

About AVI (target)

AVI (Audio Video Interleave) is a legacy Microsoft container from the 1990s. It appears in old camcorder exports, downloaded videos, and industrial capture systems. AVI often contains DivX, Xvid, or uncompressed video with MP3 or PCM audio.

Where AVI is used:

• Legacy security DVR and industrial camera exports
• Old downloads and camcorder archives
• Software that never added MP4 support
• Embedded systems with AVI-only playback

Converting FLV to AVI

Pros

• Runs on legacy AVI-only software and hardware

Cons

• Obsolete for modern sharing and streaming
• Poor subtitle and multi-track support

Caveats

• AVI is legacy output. Expect MPEG-4 Part 2 or Xvid-style video unless you choose H.264 in settings. Multi-track audio and modern subtitles are poorly supported in AVI.
• FLV sources may use obsolete codecs or odd frame sizes. Verify aspect ratio after conversion - legacy pixel aspect ratios can look stretched.
• Muxara maps the primary video and audio streams. Extra subtitle or audio tracks may not carry over unless you choose subtitle handling in the converter settings.
• Uploads are processed on dedicated workers and deleted within 24 hours. For offline batch work, use the free Muxara Mac app.