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MP4 is a multimedia container format that can store video, audio, subtitles, and images. It’s the most common format for online video streaming and playback, supporting high compression and broad compatibility. MP4 is often used with H.264 and AAC codecs.
F4V is a container format for Flash Video based on the ISO MP4 standard. It supports H.264 video and AAC audio, offering better quality than the older FLV format. F4V was used for web streaming before Flash was phased out.
Convert your .mp4 files to .f4v right in your browser — no downloads, no installs. Everything happens securely in the cloud.
We never store your files permanently. Only you can access them, and they’re automatically deleted from our servers within 2 hours.
Turn your MP4 files into F4V in just a couple of clicks. No registration, no limits — and it’s 100% free.