FLV to MP4 converter
Convert an FLV video file to MP4. Prepare an older Flash video recording for current players and apps.
Choose a file or drag it here
MP4, AVI, MOV, FLV, MKV, WebM, 3GP, MPEG, MPG, GIF, WMV, TS (up to 500 MB)
- Input
- FLV files
- 出力
- MP4
- Limit
- Up to 500 MB
- Files
- One at a time
Turn an idea into a video
Give Storybook a topic or an article link. It makes an illustrated video with narration and music.
How to convert FLV to MP4
- 01
Choose your FLV file
Drop it on the box or pick it from your device. The limit is 500 MB per file.
- 02
Confirm MP4
MP4 is already selected in Convert to. Select Convert, and a short security check runs first.
- 03
Download the MP4
Select Download when the conversion finishes. Download links expire after one day.
More in コンバーター
All 33 toolsWhy convert FLV to MP4?
Reuse a downloaded FLV recording as an MP4 file. This tool converts video files, not interactive Flash applications.
- Why leave FLV. Browsers dropped Flash, so modern apps and phones rarely open FLV.
- Why use MP4. MP4 suits sharing, uploads, phone recordings, and web playback.
- What you get. The converter first tries to copy the video and audio without compressing them again. If that fails, it encodes H.264 video and AAC audio. Keep the original. The converted file can differ in size and metadata, and some apps may still not play it.
- 品質. Converting FLV to MP4 often keeps the quality. The converter first tries to copy the video and audio without compressing them again. If it has to compress them, it uses H.264 and AAC, which can lower the quality a little. It never adds resolution or detail.
- Your rights. Convert only files you own or have permission to use.
FLV vs MP4
Related file conversions
FLV to MP4 questions
Yes. It is free and needs no account.
Yes. The conversion runs on Sceneform's servers, so your file is uploaded first. Uploads are deleted after processing. Download links expire after one day.
Up to 500 MB. A larger file is rejected before it uploads, with the message "Choose a file under 500 MB."
Converting FLV to MP4 often keeps the quality. The converter first tries to copy the video and audio without compressing them again. If it has to compress them, it uses H.264 and AAC, which can lower the quality a little. It never adds resolution or detail.
No. The converter takes one uploaded file at a time. It does not read links, and it has no bitrate, resolution, trim, crop or batch controls. The converter first tries to copy the video and audio without compressing them again. If that fails, it encodes H.264 video and AAC audio.
The converter first tries to copy the video and audio without compressing them again. If that fails, it encodes H.264 video and AAC audio. Keep the original. The converted file can differ in size and metadata, and some apps may still not play it.
Play the beginning and ending of the MP4. Confirm that speech stays aligned with the picture throughout the recording.