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whisper.cpp vs Sherpa-ONNX: catalog facts
whisper.cpp	Sherpa-ONNX
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Android, iOS, Self-hosted, Command line
Transcribes speech fully offline No Python dependency	Works fully offline Runs on phones, single-board computers and NPUs as well as servers
Mainly a command-line tool with no bundled graphical interface Models must be downloaded separately	Mainly a developer toolkit with technical setup Models must be downloaded and chosen separately
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: MIT	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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