Native Mac · No cloud

Voice-noting,
but for your actual work.

Say it. Watch it appear. murmur converts speech to text everywhere you type on Mac — offline, private, instant. No account. No subscription required.

Download for Mac See how it works

Free to start macOS 14+ Apple Silicon Open source

The gap

You already voice-note
your friends.

Every day you send voice messages on WhatsApp, iMessage, Telegram. You prefer it over typing. Then you sit down at your Mac and the keyboard takes over — every Slack, every email, every doc.

murmur closes that gap.

Before

Staring at a blank message Thinking of what to type. Rewording. Editing. Rewording again. Sending something half as good as the thought you had.

With murmur

Just say it. Press a key. Talk. Release. Your words appear — unfiltered, whole, exactly what you meant.

Use cases

Works wherever you write.

One hotkey. Any text field. Any app.

💬

Slack & messaging

Dictate long messages without the cognitive overhead. Think out loud, send what you meant.

✉️

Draft emails by talking. First draft is usually good enough. Stop laboring over every sentence.

📝

Docs & notes

Capture thoughts in Notion, Obsidian, or Google Docs as fast as they come — without breaking your flow.

💻

Code comments

Narrate what you're doing in your editor. murmur works in VS Code, Xcode, and Terminal alike.

🎙

Meeting follow-ups

Dictate action items while they're fresh. Walk away from a call and narrate your notes immediately.

🔒

Sensitive content

Legal, medical, financial. Work that cannot go to someone else's server. murmur never sends a byte.

Architecture

Built the way a Mac app should be.

Not a browser extension. Not subscription SaaS. murmur is native, lightweight, and stays out of your way.

Fully offline

All transcription runs on your Mac via whisper.cpp. No network call, no API key, no round-trip latency. Works on a plane, in a café with no Wi-Fi, anywhere.

Engine: whisper.cpp · Metal + CoreML acceleration · faster than real-time on M1+

Zero cloud. Zero accounts.

Audio never leaves your device. No account to create, no data to breach. The privacy guarantee is architectural — there is nowhere for your audio to go.

Verified: no network entitlement in the app sandbox · open source

System-wide, any app

Slack, Notion, email, Terminal, code editors — anywhere there's a text field. One hotkey, instant paste. No per-app setup, no integrations to configure.

Activation: configurable hotkey · hold to record · release to transcribe

Apple Silicon native

Built for M1, M2, M3, M4. Transcription runs on Metal and CoreML — faster than real-time, minimal battery draw, nothing polling in the background.

Models: tiny · base · small · medium — pick the balance of speed vs. accuracy

How we compare

The architecture is the difference.

Certifications don't change what happens to your audio. The network call either happens or it doesn't.

Feature	murmur Free · $29/yr · $79 lifetime	Wispr Flow $16 / month	SuperWhisper $9 / month
Works offline	✓	✗	Paid plans only
Audio stays on device	✓ Always	✗ Cloud	Local models only
Account required	Never	Required	Required
Free tier	✓	✗	✓
Open source	✓	✗	✗
Native Mac app	✓	✓	✓
System-wide hotkey	✓	✓	✓
Telemetry / analytics	None	Yes	Yes
Lifetime purchase	$79	✗	$199

Competitor data based on public documentation and pricing pages as of April 2026.

Privacy

Your voice stays on your Mac.
Full stop.

Other apps certify their security practices, then send every word you speak to their servers. murmur is different at the architecture level. There is no server to send audio to.

No audio ever leaves your device
No account required, ever
No telemetry, no analytics
Open source — verify it yourself
Update checks only when you ask

One shortcut

Press. Speak. Done.

One keyboard shortcut. Any app on your Mac. Your words appear the moment you release.

Tab

⌥ opt

space

⌘ cmd

Hold to record · Release to transcribe

Can you reschedule tomorrow's standup to 10am? I have a conflict with the product review.

Pricing

Start free. Pay once if you love it.

No subscription required. Own it outright with a lifetime license.

Free

Starter

Free forever, up to the cap

100 transcriptions / month
All Whisper model sizes
Works in every app
Fully offline, always
No account required

Download free

Voice-noting, but for your actual work.

You already voice-noteyour friends.