Add your FLV file
Drop one or more .flv files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
FLV to MOV
Converting .flv video to .mov means re-encoding the picture and sound into a different container and codec family, and this page does it entirely in your browser. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop FLV files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting Flash video to QuickTime video
Converting .flv video to .mov means re-encoding the picture and sound into a different container and codec family, and this page does it entirely in your browser. An .flv file is a Flash Video container, the format that powered most web video during the 2000s. YouTube, news sites, and early streaming platforms delivered .flv streams into the Flash Player plugin before HTML5 video replaced the whole stack.
A .mov file is Apple's QuickTime movie container, which stores video, audio, text, and timecode tracks in a flexible atom-based layout. iPhones, iPads, and professional cameras that record ProRes all write .mov, so the extension shows up constantly in editing workflows. For this route the practical draw is first-class treatment on every Apple platform and ideal editing intermediate when paired with ProRes — balanced against proRes recordings consume enormous disk space, which is worth knowing before you commit a large batch.
Why convert FLV to MOV?
The practical trigger for this conversion is usually a mismatch: with .flv, no mainstream player ships FLV support anymore. Switching to .mov buys you first-class treatment on every Apple platform, which is why it is the better fit for importing iPhone footage into an edit without conversion. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
FLV vs MOV at a glance
| Aspect | Flash video (.flv) | QuickTime video (.mov) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | a simple sequence of tagged audio, video, and script packets designed for progressive download and RTMP streaming | media lives in a hierarchy of atoms, each declaring its own size and type, which makes the format easy to extend |
| Strongest at | recovering clips downloaded during the Flash era | importing iPhone footage into an edit without conversion |
| Weak spot | no mainstream player ships FLV support anymore | proRes recordings consume enormous disk space |
| Metadata | an onMetaData script tag embeds duration, dimensions, and encoder details; there is no standard field set for titles or authorship | quickTime metadata atoms and keys, including camera model, location, and timecode data written by iPhones and professional cameras |
Pick MOV as the output
Select .mov in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if MOV is selectable, the route is real and validated.
Convert on your device
Press Convert. The conversion runs on an FFmpeg engine compiled to WebAssembly, executing entirely inside your browser tab.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid MOV file. Outputs keep the original filename with the .mov extension.
FLV to MOV questions, answered
Will converting FLV to MOV lose quality?
Both sides are re-encoded, so expect a small generation loss controlled by the quality setting: flv is container-oriented and mov is container-oriented. For visually or audibly transparent results keep quality high; for smaller files lower it and compare.
Is it private to convert FLV files here?
Yes — the .flv file is processed inside your browser tab and never uploaded. The conversion runs on an FFmpeg engine compiled to WebAssembly, executing entirely inside your browser tab. Close the tab and the file is gone from memory.
Where will the MOV file work?
macOS and iOS treat .mov as a native format, and Windows plays H.264 variants through modern Media Player builds and most editors. On the web the container is unreliable, so re-wrapping to MP4 remains the standard route for online publishing.
Will the MOV file be bigger or smaller than my FLV?
It depends on the content: media lives in a hierarchy of atoms, each declaring its own size and type, which makes the format easy to extend. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my FLV file?
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, an onMetaData script tag embeds duration, dimensions, and encoder details; there is no standard field set for titles or authorship; none of it is transmitted anywhere because the file never leaves your browser.
Can I convert MOV back to FLV?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .flv → .mov → .flv is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.