Convert text to speech locally with Kokoro TTS.
# Text string → audio file
kokoro-tts <(echo "Hello world") hello.wav --voice af_sarah
# Text file → audio
kokoro-tts article.txt out.wav --voice af_heart
# Chinese
kokoro-tts story.txt out.wav --voice zf_xiaoni --lang cmn
# EPUB / PDF → chapter audio files
kokoro-tts book.epub --split-output ./chapters/ --format mp3 --voice bf_emma
# Voice blending (60-40 mix)
kokoro-tts input.txt out.wav --voice "af_sarah:60,am_adam:40"
# Adjust speed
kokoro-tts input.txt out.wav --voice am_adam --speed 1.2
# Stream playback (no file saved)
kokoro-tts input.txt --stream --voice af_nova
uv tool install kokoro-tts
Model files (kokoro-v1.0.onnx, voices-v1.0.bin) must be in the working directory. Download once:
wget https://github.com/nazdridoy/kokoro-tts/releases/download/v1.0.0/kokoro-v1.0.onnx
wget https://github.com/nazdridoy/kokoro-tts/releases/download/v1.0.0/voices-v1.0.bin
| Region | Female | Male |
|---|---|---|
| -------- | -------- | ------ |
| 🇺🇸 en-us | af_alloy af_heart af_sarah af_nova ... | am_adam am_echo am_michael ... |
| 🇬🇧 en-gb | bf_alice bf_emma bf_lily ... | bm_daniel bm_george ... |
| 🇨🇳 cmn | zf_xiaoni zf_xiaoxiao zf_xiaoyi ... | zm_yunxi zm_yunyang ... |
| 🇯🇵 ja | jf_alpha jf_nezumi ... | jm_kumo |
| 🇫🇷 fr-fr | ff_siwis | — |
| 🇮🇹 it | if_sara | im_nicola |
For full voice list, options, and input format details, see reference.md.
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