Which FLV files convert to MOV without quality loss?

Those carrying H.264 video and AAC audio — typical of Flash video from about 2008 onward — since MOV accepts both codecs and the streams simply rewrap. Earlier files using VP6 or Sorenson Spark must be re-encoded, which costs one lossy generation.

Can iMovie really not open FLV directly?

Correct — neither iMovie nor Final Cut Pro lists FLV as an import format, and modern macOS has no system-level Flash Video decoder for them to lean on. Conversion to MOV or MP4 is the required first step on a Mac.

What audio surprises should I expect from old FLVs?

Flash microphone recordings often used the Nellymoser or Speex voice codecs, which always get re-encoded to AAC on the way to MOV. Poorly muxed old files can also carry drifting timestamps; a converter that rebuilds them fixes lip-sync issues that plagued the original.

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Final Cut Pro and iMovie won't touch Flash Video, so FLV clips must become MOV files before Mac editing can begin. Flash Video predates Apple's current media stack entirely, which makes conversion the only route in.

Convert FLV to MOV – Free Online FLV to MOV Converter

Why convert FLV to MOV?

Edit rescued 2000s web clips in iMovie or Final Cut Pro, neither of which recognizes FLV files.
Add archival Flash-era footage to documentary timelines in Mac-based post-production.
Preview old clips in QuickTime Player on macOS without installing VLC or other third-party software.

Tip: Later FLVs already carry H.264 and AAC, which MOV accepts directly — a rewrap with no quality loss — while early VP6 or Sorenson files need genuine re-encoding.

How to convert FLV to MOV

Upload your FLV file using the area above.
MOV is preselected as the target format.
Click Start and wait for the conversion to finish.
Download your converted MOV file.

Convert FLV to MOV

Convert FLV to MOV – Free Online FLV to MOV Converter

Why convert FLV to MOV?

How to convert FLV to MOV

FLV to MOV — Frequently Asked Questions