Convert AVI to FLV — Free Online Converter

AVI is a desktop-oriented container from the early 1990s with no built-in streaming capability. FLV (Flash Video) was Adobe's streaming video format, dominant across the web from 2005 to 2015, carrying Sorenson Spark (H.263), VP6, or H.264 video with MP3 or AAC audio. Although Flash Player reached end-of-life in December 2020, FLV files remain widely used in legacy content management systems, Chinese video platforms (Bilibili, Youku archives), and existing CDN workflows that have not migrated to MP4/HLS.

Some legacy systems and CMS platforms still require FLV format for video uploads. Older streaming servers (Red5, Wowza legacy configs) expect FLV input. If you manage a video library built on Flash-era infrastructure or need to deliver content to systems that specifically require FLV, converting AVI to FLV bridges the gap between desktop video and these legacy streaming workflows.