Convert FLV to M4V

FLV to M4V converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

FLV

FLV (Flash Video) is a container format used to deliver video over the web using Adobe Flash Player. Although Flash has been discontinued, FLV files remain common in older video archives. FLV typically wraps Sorenson Spark or VP6 video and MP3 or AAC audio.

Developer: Adobe (Macromedia)
Initial release: 2002
Compression: Lossy
Color depth: 8-bit
Transparency: No
Animation: Yes

Best for

Recovering legacy Flash video archives
Migrating old web video content
Playing retro web animations
Archiving early-2000s online video
Converting old streaming clips

Pros

+Compact streaming for its era
+Wrapped common codecs like Sorenson Spark and VP6
+Widely used in historical web video
+Simple container structure

Cons

−Flash Player discontinued and unsupported
−Low maximum quality and 8-bit color
−No modern codec or HDR support
−Security risks in legacy Flash runtime

M4V

M4V is a video container format closely related to MP4 and developed by Apple. It is primarily used for video purchased or rented from the iTunes Store and may include Apple's FairPlay DRM copy protection. M4V typically wraps H.264 video and AAC audio and plays in iTunes, Apple TV, QuickTime and other compatible players.

Developer: Apple
Initial release: 2005
Compression: Lossy
Color depth: up to 10-bit
Transparency: No
Animation: Yes

Best for

Playing iTunes Store video purchases
Apple TV video playback
Delivering DRM-protected video
iOS device video consumption
FairPlay-protected content distribution

Pros

+Optimized for Apple ecosystem playback
+Supports FairPlay DRM protection
+Wraps H.264 video with AAC audio
+Compatible with iTunes and QuickTime

Cons

−DRM restricts playback to authorized devices
−Less universal than MP4 outside Apple
−Fewer editing tools support DRM files

How to convert FLV to M4V

1
Select FLV files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose m4v — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your m4v file right away.

FLV vs M4V

Property	FLV	M4V
Compression	Lossy	Lossy
Color depth	8-bit	up to 10-bit
Multi-track	Yes	Yes
DRM support	No	Yes
Open format	No	No

When to use FLV vs M4V

FLV

Recovering legacy Flash video archives
Migrating old web video content
Playing retro web animations
Archiving early-2000s online video
Converting old streaming clips

M4V

Playing iTunes Store video purchases
Apple TV video playback
Delivering DRM-protected video
iOS device video consumption
FairPlay-protected content distribution

Use cases for FLV → M4V

Recovering legacy Flash video archives
Migrating old web video content
Playing retro web animations
Archiving early-2000s online video
Converting old streaming clips
Playing iTunes Store video purchases
Apple TV video playback
Delivering DRM-protected video
iOS device video consumption
FairPlay-protected content distribution

Frequently Asked Questions

Is converting FLV to M4V free?

Yes. This FLV → M4V converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert FLV to M4V?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my FLV files uploaded to a server?

No. Files never leave your device. The entire FLV → M4V conversion runs locally in your browser, so your data stays private.

Can I convert multiple FLV files at once?

Yes — batch conversion is supported. Add as many FLV files as you like and convert them to M4V in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting FLV to M4V reduce the quality?

Because both formats use lossy compression, the M4V output will not bring back any quality that has already been lost in your FLV file. Avoid repeated re-encoding to keep the best quality.

Does M4V support transparency?

No — M4V has no alpha channel. Transparent areas of your FLV file will be filled with a solid background colour in the converted file.

How will the file size change after converting FLV to M4V?

Both formats use comparable compression, so the M4V output will be similar in size to your FLV file — typically within 10–20% of each other.

Related Conversions

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FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

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