Convert videos to any format
Drag & drop video file here
Supports MP4, MKV, AVI, MOV, WebM and more
Drag & drop your AVI video
Automatic conversion with optimal settings
Save your converted FLV file
Converting AVI to FLV is only needed for legacy Flash-based systems.
AVI is a classic multimedia container format introduced by Microsoft in 1992. While considered legacy, it remains widely used for compatibility with older systems and simple video storage.
FLV was the dominant web video format during the Flash era. While Flash is now deprecated, FLV files still exist in many archives and legacy systems.
Both are legacy formats. FLV is smaller but deprecated. Consider converting to MP4 or WebM instead.
Common scenarios for this conversion
Convert AVI to FLV when your device or app doesn't support the original format.
Upload FLV instead of AVI for better support on YouTube, Instagram, and TikTok.
Convert to FLV for seamless import into professional editing software.
Play AVI files on any phone by converting to FLV.
Your files never leave your device. All conversion happens in your browser — no server uploads.
Hardware-accelerated conversion powered by WebCodecs and WebAssembly.
Convert between any video format combination.