Kokoro-82M model and voices: Apache License 2.0 (hexgrad). ONNX export: kokoro-onnx (MIT).
ONNX Runtime Web: MIT (Microsoft).
phonemizer.js: packages eSpeak NG, GPL-3.0 — source at https://github.com/espeak-ng/espeak-ng
and https://github.com/xenova/phonemizer.js.
tts-worker.js: Little Roos; text handling adapted from kokoro-js (Apache License 2.0).