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Tortoise TTSZonos
Free

Free and open source under the Apache-2.0 license.

 Free

Free open-weight model and code.

Windows, macOS, Linux, Command line Linux, Self-hosted
  • Emphasizes realistic prosody and intonation over raw generation speed
  • Apache-2.0 licensed for unrestricted local use
  • Voice cloning from a short reference sample
  • Trained on over 200k hours of multilingual speech
  • Notably slower to generate speech than many newer TTS alternatives
  • No repository update reflected since late 2024
  • Needs Python setup and a capable GPU for comfortable speed
  • Early v0.1 release with a small commit history
Downloadable app, Self-hosted Downloadable app, Self-hosted
Open source Open source
License: Apache-2.0 License: Apache-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.