Video Conversion
Convert F4V to MKV Online — Free
Fast, free F4V to MKV converter. No registration required.
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Works Everywhere
Any browser, any device
How to Convert
1
Upload your .f4v file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .mkv file when it's ready.
What is F4V?
F4V is Adobe's Flash video format based on the MPEG-4 Part 12 container. While Flash is discontinued, many archived videos still use this format.
Format Details
- Full Name
- Flash MP4 Video
- Extension
- .f4v
Key Features
- MPEG-4 based
- H.264 codec
- Flash legacy
- Web video
What is MKV?
MKV is an open-source container format that can hold unlimited video, audio, picture, or subtitle tracks. Popular for high-definition video content and anime.
Format Details
- Full Name
- Matroska Video
- Extension
- .mkv
Key Features
- Multiple audio tracks
- Subtitle support
- Chapter markers
- High quality
F4V vs MKV
| Feature | F4V | MKV |
|---|---|---|
| Full Name | Flash MP4 Video | Matroska Video |
| Extension | .f4v | .mkv |
| Best For | MPEG-4 based | Multiple audio tracks |
Frequently Asked Questions
Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.