The free audio converter at https://wave.co/tools/audio-converter runs FFmpeg in your browser. Your files are converted on your own device and are never uploaded. Files in this directory: ffmpeg-core.js, ffmpeg-core.wasm @ffmpeg/core 0.12.10 (ffmpeg.wasm single-thread core), a WebAssembly build of FFmpeg configured with --enable-gpl (libx264, libx265, libmp3lame, libvorbis, libopus and others). License: GNU General Public License, version 2 or later. Source: https://github.com/ffmpegwasm/ffmpeg.wasm/tree/v0.12.10 (build scripts and the exact FFmpeg + library revisions) https://ffmpeg.org/download.html GPL text: https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt worker.js, const.js, errors.js @ffmpeg/ffmpeg 0.12.15, MIT License. Source: https://github.com/ffmpegwasm/ffmpeg.wasm These files are unmodified copies of the published npm packages. FFmpeg is a trademark of Fabrice Bellard. Wave AI is not affiliated with the FFmpeg project.