Convert videos to any format
Drag & drop video file here
Supports MP4, MKV, AVI, MOV, WebM and more
Drag & drop your FLV video
Automatic conversion with optimal settings
Save your converted WEBM file
Convert legacy FLV files to WebM for modern web playback. WebM is the spiritual successor to FLV for web video.
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.
WebM
WebM is an open, royalty-free video format developed by Google, optimized for web use. It uses VP9 or AV1 for video and Opus for audio, offering efficient compression ideal for HTML5 video and web applications.
FLV was the old web video standard. WebM is the modern one. WebM offers dramatically better quality and compression.
Common scenarios for this conversion
Convert FLV to WEBM when your device or app doesn't support the original format.
Upload WEBM instead of FLV for better support on YouTube, Instagram, and TikTok.
Convert to WEBM for seamless import into professional editing software.
Play FLV files on any phone by converting to WEBM.
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.