Open-source alternatives to Otter.ai

Productivity & Notes · 3 free & open-source options

Looking to replace Otter.ai with something free and open-source? These 3 tools are the best open alternatives in 2026 — most are self-hostable, so you keep full control of your data and pay no subscription.

Whisper ›MIT
The reference open speech-to-text model, runs fully offline.
Full profile ›GitHub ↗
Vibe ›MIT
Desktop app to transcribe meetings and files locally.
Full profile ›GitHub ↗
WhisperX ›BSD-2-Clause
Fast Whisper with word timestamps and speaker diarization.
Full profile ›GitHub ↗

FAQ

What is the best open-source alternative to Otter.ai?

The top open-source alternative is Whisper — The reference open speech-to-text model, runs fully offline. The full ranked list is above.

Are these Otter.ai alternatives free?

Yes. Every tool listed is open-source and free to use; most can be self-hosted so you keep full control of your data.

Can I self-host an alternative to Otter.ai?

Most of these tools are designed to run on your own server or machine, giving you privacy and no subscription fees.

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