Flash Video
The old Adobe Flash web video format, which modern browsers no longer play directly.
- Type
- video
- Best for
- old web video archives
No account · no upload · no watermark
Convert FLV to MP4. Completely free.
Drop your FLV and get an MP4 back, right here in this tab. Your own computer does the work, so nothing gets uploaded, and there's no paid version.
FLV to MP4 converter
MPEG-4 Part 14
The most widely supported video format, playing on nearly every phone, TV, browser and editor.
- Type
- video
- Best for
- sharing and everyday playback
What to expect
If the video and audio inside are already something MP4 can hold, they're copied across with no quality loss, which takes seconds. Otherwise they're re-encoded, on your graphics hardware where possible and with FFmpeg in the tab where not.
How to convert FLV to MP4
- Drop your FLV on this page, or choose it from your device.
- MP4 is already selected. Adjust quality, size or trim if you want to, and each option shows the size it will produce.
- Press Convert, watch it work, then download the result.
Questions
Is this FLV to MP4 converter really free?
Yes, completely. Every tool and every format is free, and there's no paid version, account, watermark or daily limit.
Do my files get uploaded?
No. Your browser does the work on your own device, so your files stay with you. Closing the tab clears them from memory.
Can I convert several files at once?
Yes. Drop as many as you like, and the results can be downloaded together as a ZIP.
Does it work on a phone?
Yes, in a current mobile browser. Large files are limited by how much memory your device can spare.
What should I know about FLV to MP4?
If the video and audio inside are already something MP4 can hold, they're copied across with no quality loss, which takes seconds. Otherwise they're re-encoded, on your graphics hardware where possible and with FFmpeg in the tab where not.
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Ready to convert your FLV?
- Completely free
- Nothing uploaded
- No account
- No watermark