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PipereSpeak NG
Free

Free and open source under the GPL.

 Free

The open-source software is available without a license fee. Hosting, hardware and…

Windows, macOS, Linux, Command line Windows, macOS, Linux, Android
  • Fast enough for low-power hardware like a Raspberry Pi
  • Fully local speech output with no cloud dependency
  • Supports many languages without large recorded voice libraries.
  • No graphical interface; aimed at command-line and integration use
  • Voice quality depends on the chosen voice model
  • Its synthetic voices sound less natural than recording-based speech systems.
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: GPL-3.0
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 23, 2026

Checked September 22, 2026

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