FFmpeg is described as 'Cross-platform multimedia framework performing decoding, encoding, transcoding, muxing, demuxing, streaming, filtering, and playback for nearly all media formats' and is a leading Audio Converter in the audio & music category. There are more than 50 alternatives to FFmpeg for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best FFmpeg alternative is HandBrake, which is both free and Open Source. Other great apps like FFmpeg are Avidemux, MKVToolnix, Video Compression and Shutter Encoder.
FFmpeg alternatives are mainly Video Converters, but if you're looking for
Audio Converters or Video Editors you can filter on that. Other popular filters include
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Android. These are just examples - use the filter bar below to find more specific alternatives to FFmpeg.