Local speech-to-text, free

Murmur

Open source

Press a shortcut, speak, and your words appear wherever your cursor is. Murmur runs entirely on your Mac using OpenAI Whisper — no cloud API, no subscription, no account.

What stays on your Mac

Transcription happens locally. Murmur may store settings, transcription history, and optional audio recordings in your home folder (~/.murmur_config.json, ~/.murmur_history.json, ~/.murmur_audio/). You can disable history/audio retention or delete all local data from Settings.

Download formacOS Silicon GitHub

Read privacy details