Convert F4V to AVI — Free Online Converter

F4V is Adobe's MPEG-4 based Flash video format that stores H.264 video and AAC audio. AVI (Audio Video Interleave) is Microsoft's classic multimedia container, introduced in 1992, which interleaves audio and video data chunks in a RIFF-based structure. Converting F4V to AVI moves Flash video content into the long-established Microsoft container format, which remains widely supported by legacy video editing software, hardware media players, and industrial video systems.

AVI is the required input format for many older video editing applications (early Adobe Premiere, Pinnacle Studio, Windows Movie Maker) and hardware devices (standalone DVD players with USB input, industrial display systems, surveillance DVRs). Converting F4V to AVI ensures compatibility with these legacy systems that do not understand the Flash or modern MP4 container format. AVI also works well when you need to deliver uncompressed or lightly compressed video for editing without generation loss.