Convert Flash Video (.flv) to M4B for free. Choose files, review the available settings and download your results. No account needed.
A container formerly common in web video delivery. Converting old FLV recordings to MP4 can make them easier to play without Flash software.
Tested output uses FLV1 video and MP3 audio; conversion does not require or run Flash.
FLV file format guideAn MPEG-4 audio container commonly used for audiobooks and spoken-word recordings.
Output uses AAC. Chapters, bookmarks, cover art and DRM are not retained.
M4B file format guideTrim a clip, resize the frame, or adjust playback speed before export. Video conversion re-encodes supported streams; subtitles, extra audio tracks, and container attachments are not preserved. Audio output requires an audio track in the input.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.
