Convert FLV to MP4 online
Convert FLV files to MP4 online
Convert old FLV files to MP4 so they are easier to open, share, and use today. This FLV to MP4 converter is handy for archived downloads and older video libraries. Upload the file and download a more compatible MP4 version.
How it works
Upload the FLV
Choose the old Flash video file.
Convert to MP4
The video is converted into a modern MP4 file.
Download and archive
Preview the MP4 and keep it as the usable copy.
Frequently asked questions
About FLV to MP4
FLV to MP4 converts old Flash video files into a modern format that works in browsers, phones, editors, and media players. FLV was common on older websites and streaming platforms, but Flash-era video is no longer practical for normal sharing. MP4 makes those older clips easier to archive, upload, edit, and play. The conversion cannot improve the original resolution or remove old compression artifacts, but it can make the file usable again. After conversion, check audio sync, frame rate, and visible quality because old FLV files vary widely.
Updated June 2026: Added guidance for converting old Flash FLV videos to MP4 for modern playback, archiving, websites, and editing.
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