Convert FLV to WebM — Free Online Converter

FLV (Flash Video) was the web's first dominant video format, powering YouTube and Twitch through Flash Player. WebM is its spiritual successor — an open-source container developed by Google in 2010, using VP8/VP9/AV1 video with Vorbis/Opus audio. WebM was specifically designed for HTML5 video delivery and is supported natively in Chrome, Firefox, Edge, and Opera. Converting FLV to WebM moves Flash-era content into the modern open web video ecosystem.

WebM is the open-source standard for web video. Chrome, Firefox, and Edge play WebM natively without plugins, making it the natural replacement for Flash-dependent FLV streaming. VP9 in WebM achieves comparable quality to H.264 at 30-50% lower bitrates, resulting in faster page loads and lower bandwidth costs. For web developers, WebM provides a royalty-free alternative to MP4 for HTML5 video elements.