FLV to MOV Converter
Convert FLV to MOV free — no upload, no signup
To convert FLV to MOV, drop your FLV video into the box below and click Convert. Fylo converts with ffmpeg running inside your browser, so nothing is uploaded and there's no signup or watermark. Rescue old Flash videos for Mac playback and editing.
Drop videos here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
If the video already uses codecs that fit the new format, Fylo repackages it instantly with no quality loss.
Advanced
How to convert FLV to MOV
Add your FLV videos
Drag and drop FLV files into the box or tap to choose them. The converter engine (about 31 MB) downloads once, the first time you convert.
Choose quality (optional)
Balanced quality suits most videos. If the codecs already fit MOV, Fylo repackages the file instead of re-encoding it, with no quality loss.
Convert and download
Click Convert, then download each MOV file or all of them as one ZIP.
Why convert FLV to MOV?
QuickTime and iMovie can't open FLV. Converting old Flash downloads to MOV makes them usable on a Mac.
What happens when you convert FLV to MOV?
H.264 FLVs are repackaged without re-encoding; older codecs are converted to H.264 with AAC audio.
How does Fylo convert FLV to MOV?
Fylo reads the FLV with ffmpeg compiled to WebAssembly and writes H.264 (x264, CRF 23) with AAC audio in a QuickTime container. Most FLV files already contain H.264 video, so Fylo usually copies the video without re-encoding (and converts only the audio if needed), which is fast and lossless. Only the first video and audio track are kept, and the original resolution is preserved unless you pick 1080p, 720p or 480p under Advanced.
What's the difference between FLV and MOV?
FLV (Flash Video) was introduced with Flash Player 6 and 7 in 2002–2003 and became the format behind early YouTube, news sites and video portals. Later FLVs usually contain H.264 video and AAC audio — the same codecs as MP4.
MOV is the QuickTime File Format that Apple introduced in 1991. MP4 was later standardised on the same structure, so the two are close relatives. iPhones record MOV files (usually H.264 or HEVC video with AAC audio), and professional cameras and editors use MOV for high-quality ProRes footage.
Learn more: FLV format guide · MOV format guide
| Property | FLV | MOV |
|---|---|---|
| Developed by | Macromedia / Adobe | Apple |
| Introduced | 2003 | 1991 |
| Typical video codecs | H.264, Sorenson Spark, VP6 | H.264, HEVC, ProRes |
| Typical audio codecs | AAC, MP3 | AAC, PCM |
| Plays in web browsers | No (Flash Player ended in 2020) | Partly (Safari; others only if H.264) |
| Compatibility | VLC and some desktop players; RTMP live-streaming tools | Apple devices, editors; limited on Windows and Android |
| Best for | Old Flash archives, RTMP streaming workflows | iPhone videos, professional editing (ProRes) |
Frequently asked questions
Will iMovie open the MOV?
Yes, H.264 MOV imports into iMovie and Final Cut Pro.
Why is my old FLV slow to convert?
Pre-2008 FLVs use Sorenson or VP6 video, which must be fully re-encoded.
Is my FLV file uploaded to a server?
No. Fylo runs ffmpeg, the same engine used by professional video tools, compiled to WebAssembly inside your browser. Your FLV file is read directly from your device and never sent anywhere.
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