How to use the F4V converter
- Choose a file. Drop an F4V file to convert it to something else, or any other video to convert it to F4V.
- Check "Convert to". The converter picks MP4 for F4V files and F4V for everything else; change it if you need something different.
- Adjust quality if you want a smaller or higher-quality file.
- Click Convert and download the result.
What is an F4V file?
F4V was Adobe's MP4-based replacement for FLV, holding H.264 video with AAC sound for Flash Player 9 and later. Since Flash is gone, F4V files are mostly found in old archives and Adobe Media Encoder exports.
F4V is mainly used for legacy Flash video archives. It plays on VLC and some MP4 players.
F4V at a glance
| Full name | Flash MP4 Video |
|---|---|
| Type | Video |
| Created by | Adobe, 2007 |
| Compression | Lossy |
| Typical codecs | H.264 + AAC |
| Can be created here | Yes |
Pros and cons of F4V
Good
- Uses modern H.264 inside
Not so good
- The extension is not recognised by most apps today
Common F4V problems and fixes
An F4V will not open
Convert F4V to MP4. It is usually a fast copy because the codecs are the same.
Frequently asked questions
How do I open an F4V file?
F4V files play on VLC and some MP4 players. If yours will not open, convert it to MP4 on this page; that format plays on any device.
How do I convert a file to F4V?
Drop any video on this page. "Convert to" is set to F4V automatically for files that are not F4V already.
How much does the F4V converter cost?
Nothing. It is free with no registration, no watermark and no limit on how many files you convert.
Are my files safe?
Yes. Files are converted locally in your browser and are never uploaded. When you close the page, nothing is left behind.
Is F4V lossy?
Yes, F4V normally uses lossy compression, which removes detail you are unlikely to notice to keep files small.