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MP4→FLV

MP4 to FLV

Convert an MP4 to FLV for RTMP ingest, legacy learning platforms and archived Flash players.

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How to convert MP4 to FLV

Three steps to a file that a legacy system will accept

1. Upload your video1

1. Upload your video

Drag an MP4 onto the page or click “Upload”. MOV, MKV, AVI and WebM sources work too. Up to 1 GB per file.

2. Keep H.264 inside the container2

2. Keep H.264 inside the container

FLV is pre-selected with H.264 video and AAC audio, which is what RTMP servers and current FLV players expect. Switch to VP6 only for a player from the 2000s that cannot read H.264.

3. Download and send it to the server3

3. Download and send it to the server

Upload the file to your RTMP endpoint or add it to the learning platform. To check it first, open it in VLC.

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MP4 to FLV converter

The format outlived the plugin

Adobe retired Flash Player on 31 December 2020 and browsers removed it a month later. The FLV container is still in use: RTMP ingest carries it, and desktop players open it.

FLV selected as the output format for an MP4 file

Same video, different wrapper

FLV is a thin container around the video stream, so the picture that comes out matches the MP4 that went in. MKV, MOV, WebM and the audio formats are in the same output list if the target system wants something else.

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FAQ

Because the system receiving the file accepts nothing else: an RTMP ingest endpoint, a learning platform built with Flash-era tools, or an archived player that still has to work.