Start with a local FLV file
Inspect your FLV's duration, dimensions and codecs. FLV identifies the container, not a particular codec. The Suite accepts FLV input, but damaged files and unsupported streams may still fail.
Audio Video Suite for Windows
Convert FLV recordings into files you can use today
Give an older FLV clip a useful new format. Freemore Audio Video Suite converts supported FLV files to MP4, with trimming and output settings in the same workflow.
- FLV input and legacy FLV output
- MP4 presets for a new playback copy
- Trim clips and choose output quality
Free to use · Windows 10 / 11 · 64-bit · Version 8.2.0
Give an older video a useful next format
Make an MP4 playback copy
Choose an MP4 preset supported by your player. H.264 is a useful starting point. Keep original dimensions unless resizing is needed; enlarging old footage does not restore lost detail.
Remove extra footage before export
Use the preview and trim controls to keep the useful section of a long recording. You can also crop, rotate and adjust the picture or audio. Check a converted sample so changes remain appropriate for the source rather than making artifacts more obvious.
Write FLV only when the destination needs it
Legacy FLV output presets serve workflows that specifically request them. Creating an FLV does not provide a Flash browser plugin. Choose the output for your actual application or player.
How to convert FLV to MP4
1. Add the FLV recording
Drag the file into the Suite. Check that the preview and audio open correctly before making other changes.
2. Choose the destination format
Select MP4 H.264 or another suitable preset. Trim unwanted sections and keep or adjust the original dimensions.
3. Check and save
Convert a sample, inspect picture and sound, then choose an output folder and convert the full clip.
Choose a format for the next use
| Option | When to choose it | What to check |
|---|---|---|
| MP4 H.264 | Make a new copy for a compatible video player. | Check source quality and the final audio track. |
| FLV | An existing application explicitly asks for FLV. | Confirm its codec requirements before converting. |
| Audio output | You only need the sound from the recording. | Select an audio preset such as MP3 instead of video. |
FLV conversion questions
Can I convert FLV to MP4 without uploading it?
Yes. Local FLV conversion runs on your Windows PC and saves the output in the folder you choose.
Does this restore Flash playback in my browser?
No. The Suite converts media files. An FLV or SWF output preset does not install or restore a browser plugin.
Can an old FLV become a sharp HD video?
Changing resolution does not recreate detail absent from the source. Start with sensible dimensions and inspect a sample before choosing stronger adjustments.
Can I convert more than one FLV file?
Yes. Add multiple files to the queue, choose common output settings and use per-file overrides when the recordings differ.
Download Audio Video Suite for Windows
Turn a stored FLV recording into a format suited to its next use.
64-bit Windows 10 version 2004 or later, or Windows 11. Microsoft .NET Desktop Runtime 8 x64 is required.
