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Free & open source
Whisper
Free alternative to: Otter.ai
License: MIT
Free terms: Fully free under MIT — both code and model weights — including commercial use; self-hosted with no caps.
What it does
OpenAI's robust speech-to-text model supporting transcription and translation across 99 languages.
Heads-up: Official README (openai/whisper): 'Whisper's code and model weights are released under the MIT License.'
Get it
The project lives with its maintainers — we don't distribute it and we can't provide support for it.
Filed under: Free Voice & Text-to-Speech Tools
Last verified: September 17, 2026 · Official source ↗
Heads-up: licenses and free tiers change. This page summarizes what the project's official source published on the verified date — confirm the details on the official page before you build on it. We never invent pricing or limits.
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