The audio converter uses a locally self-hosted WebAssembly build of FFmpeg and the FFmpeg.wasm JavaScript wrapper. Your audio is processed on your device, not uploaded to EDT.
JavaScript wrapper: @ffmpeg/ffmpeg 0.12.15. Source and license: FFmpeg.wasm project.
WebAssembly core: @ffmpeg/core 0.12.10, supplied with a GPL-2.0-or-later license declaration. Sources, build scripts and licensing details: FFmpeg.wasm core and FFmpeg licensing information.
The exact compiled binary and its linked codecs determine the final licensing obligations. Retain the required notices and confirm corresponding source/build availability before publishing the compiled core. This notice is not a substitute for a complete GPL compliance review.