Compare software

IndexTTS vs OpenVoice: catalog facts
IndexTTS	OpenVoice
Free Free to download and run from the GitHub repository.	Free Free and open source under the MIT license.
Command line	Windows, macOS, Linux, Command line
Zero-shot voice cloning from a reference sample Control over emotion and duration	Accurate tone-color cloning from a reference voice Fine-grained control over emotion and accent, not just voice identity
Requires a Python setup and suitable hardware License terms need checking before commercial use	No repository update reflected since April 2025 No official graphical application, mainly usable through code
Downloadable app	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 22, 2026

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