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PiperVoiceGen
Free

Free and open source under the GPL.

 Free

Free and open source under the GPL-3.0-or-later licence.

Windows, macOS, Linux, Command line Linux
  • Fast enough for low-power hardware like a Raspberry Pi
  • Fully local speech output with no cloud dependency
  • Simple single-purpose tool
  • Open source under GPLv3
  • No graphical interface; aimed at command-line and integration use
  • Voice quality depends on the chosen voice model
  • Linux only
  • Speech engine and voice options are not documented in the research
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: GPL-3.0-or-later
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 23, 2026

Checked October 1, 2026

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