MP4 to FLV Converter

Convert MP4 files to FLV online for free. Upload a MP4 file, choose FLV, and download the converted file with no account required.

Why convert MP4 to FLV?

Video formats differ in container support, codecs, upload compatibility, playback behavior, and file size. MP4 files are commonly used for web video, social uploads, phones, and universal playback. Converting to FLV helps when your next tool, device, website, or sharing workflow needs legacy Flash archives and older downloaded videos.

Best uses for FLV

FLV is useful for legacy Flash archives and older downloaded videos. FLV is a legacy web video format and usually needs conversion today. Use this output when compatibility, editing needs, upload requirements, or file size make FLV the better fit.

Before you convert

Check playback, audio sync, aspect ratio, duration, file size, and whether the destination platform accepts the converted file. Keep the original MP4 file until the converted FLV file has been reviewed successfully.

MP4 to FLV FAQ

How do I convert MP4 to FLV?

Upload your MP4 file, keep MP4 as the input format, choose FLV as the output, then start the conversion and download the converted file.

Is this MP4 to FLV converter free?

Yes. You can convert files online without creating an account or installing desktop software.

When should I use FLV?

FLV is useful for legacy Flash archives and older downloaded videos. FLV is a legacy web video format and usually needs conversion today.

Will converting MP4 to FLV change quality?

Quality depends on the source file and output format. MP4 is the safest general-purpose video container for compatibility. FLV is a legacy web video format and usually needs conversion today.