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Convert M4V to FLV

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Verified by Adam B.· reviewed by FE Editorial ·updated Jul 28, 2026
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Is it possible to convert M4V to FLV?
Yes - M4V converts to FLV.

You can do it right here with our free converter - no sign-up, and your file is deleted right after.

Upload your .m4v file to the converter above and download the .flv - it is free and your file is deleted after converting. Keep in mind that re-encoding always causes some quality loss, and the resulting FLV will not play in any modern browser without Flash.

Also to FLV: WOTREPLAY · TVS · VP6

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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Why convert M4V to FLV?

The only realistic reason to convert M4V to .FLV today is feeding a legacy CMS or streaming platform that was built around Adobe Flash and never updated. FLV dominated web video through the 2000s and early 2010s, but Adobe ended Flash Player support in December 2020, making FLV essentially unplayable on any current device. For any new project, MP4 is the correct output format.

How to convert M4V to FLV

VLC Media Player FREE

Open VLC, go to Media > Convert/Save, create a custom FLV profile using the wrench icon, and click Start.

Freemake Video Converter FREE

Add your .m4v to Freemake Video Converter, select FLV as the output format, and click Convert.

Command line - FFmpeg CLI

Convert with one command: ffmpeg -i input.m4v -c:v libx264 -ar 44100 -c:a aac output.flv

Programs that convert M4V

Adobe Premiere Pro
Aimersoft DRM Media Converter for Windows
Aimersoft iTransfer for Windows
Freemake Video Converter
Movavi Video Converter Personal
SUPER
Adobe Premiere Pro for Mac
Aimersoft DVD Ripper for Mac

About these formats

.M4V iTunes Video File

An M4V file is an iTunes/Apple TV video - movies, TV shows, and music videos sold or rented through Apple's store. Non-DRM M4V files open in VLC, Windows Media Player, or QuickTime.…

Open .M4V details →
.FLV Flash Video

An FLV (Flash Video) file is a video made for Adobe Flash Player, the format YouTube and most streaming sites used through the 2000s. Flash is dead since December 2020, but VLC media player…

Open .FLV details →

Quality & what to watch

  • FLV is obsolete - Adobe Flash Player reached end of life in December 2020 and no modern browser plays .flv files natively.
  • DRM-protected .m4v files purchased from iTunes or Apple TV cannot be converted by any tool; only non-DRM .m4v files can be processed.
  • Re-encoding from M4V to FLV always causes quality loss - there is no lossless conversion path between these formats.

Frequently asked questions

Can I convert a DRM-protected M4V file to FLV?
No. Apple FairPlay DRM prevents any software from reading the video stream. Only non-DRM .m4v files - such as those exported from iMovie or Final Cut Pro - can be converted.
Will the FLV file play in a web browser?
No. All major browsers removed Flash support after December 2020 and cannot play .flv natively. If you need web video, convert to .mp4 instead.
What codecs does FLV support?
Modern FLV containers accept H.264 video with AAC audio, which gives the best quality. Older FLV used Sorenson Spark (H.263) or On2 VP6, which produce lower quality at the same file size.
Is FLV the same as F4V?
No - F4V is Adobe's newer Flash container that wraps H.264 and AAC more cleanly than FLV, but both formats are obsolete since Flash reached end of life.