Convert MP4 to FLV

While Adobe Flash has been deprecated, FLV format still has some specific uses. It remains compatible with certain legacy systems, older web platforms, and specialized software that hasn't been updated. Some educational institutions, business training platforms, and industrial systems still rely on FLV content. If you're maintaining older systems or need to provide video for platforms with established FLV workflows, conversion still makes sense. However, for new projects or general web video, more modern formats like MP4 or WebM are generally better choices.

FLV typically uses older, less efficient compression methods, so maintaining the same quality as MP4 usually results in larger files or, conversely, similar-sized files with reduced quality. Our converter offers several quality presets that balance size and visual fidelity. For casual viewing on smaller screens, any quality difference may be minimal, but for detailed content or larger displays, you might notice some reduction in sharpness or color accuracy compared to the original MP4, particularly at lower quality settings.

FLV has several technical limitations compared to newer formats. It has more limited support for high resolution video (typically best for 720p or lower), fewer advanced compression features, and less efficient audio options. It doesn't support modern features like HDR, variable frame rate, or advanced subtitle formats. Storage efficiency is lower than newer codecs, resulting in larger files for equivalent quality. Our converter is transparent about these limitations and helps you make appropriate choices for your specific content when converting from MP4.

Using FLV on modern websites requires additional players or conversion on the server side. Most modern browsers no longer support Flash or native FLV playback. To use FLV content on current websites, you'd typically need to implement a JavaScript-based player that converts the content to a format browsers can display, or better yet, convert to modern formats like MP4 or WebM before uploading. Our converter includes guidance on the best approaches for different scenarios and target platforms.

The primary reason to convert to FLV today is for compatibility with specific legacy systems that require this format. This might include older learning management systems, specialized business applications, industrial control interfaces, or archived websites that haven't been modernized. If you're maintaining systems from the Flash era that expect FLV content, our converter provides a straightforward way to create compatible files from your newer MP4 content, with options optimized for these legacy environments.