MP4 to FLV

Convert MP4 files to FLV online for free. Fast, secure, and no installation required. Best MP4 to FLV tool.

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Fast & Free

Convert your files in seconds. No limitations, no watermarks.

Secure

Files never leave your device. All processing happens in your browser.

High Quality

Best in class algorithms for FLV conversion.

What is MP4?

MPEG-4 Part 14

MP4 is the most widely compatible video container format today. It stores video, audio, and subtitles and is supported by almost all players, browsers, and devices. It typically uses H.264 or H.265 video compression and AAC audio.

Universal compatibility
High compression efficiency
Supports streaming

What is FLV?

Flash Video

FLV was the standard video format for web streaming via Adobe Flash Player. Although Flash is now obsolete, many legacy video files exist in FLV format and often need to be modernized to MP4.

Legacy web video
Small file size
Requires conversion for modern use