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Piper vs TTSMaker: catalog facts
Piper	TTSMaker
Free Free and open source under the GPL.	Freemium Free weekly character allowance, with a Pro plan for higher limits.
Windows, macOS, Linux, Command line	Web
Fast enough for low-power hardware like a Raspberry Pi Fully local speech output with no cloud dependency	No sign-up needed for basic use Over 600 voices in 100+ languages
No graphical interface; aimed at command-line and integration use Voice quality depends on the chosen voice model	Weekly and per-conversion character limits on the free tier Generated files are deleted after 30 minutes
Downloadable app	Web application
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 26, 2026

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