Say it.
It's typed.

Hold a key, talk, let go. mbl transcribes on your Mac's Neural Engine, tidies the ums and false starts, and types the result wherever your cursor is.

Download for Mac
v0.5.0 · macOS 26 · Apple Silicon · free and open source

What cleanup does

You talk like a person. It types like you meant it.

Filler words, false starts and mid-sentence corrections are removed. British spelling is applied. Words from your vocabulary list are spelt the way you spell them.

What you said
um can you send the report to Priya by friday no wait by thursday and uh cc the whole team on it I think
→
What mbl typed
Can you send the report to Priya by Thursday and cc the whole team on it?

Why it feels different

Built for the Mac you already have.

Your audio stays on your Mac

Transcription runs on the Neural Engine with NVIDIA Parakeet. Only the transcribed text goes to Codex for cleanup, and with Apple Intelligence not even that.

Types, never pastes

Text arrives as keystrokes at your cursor. Your clipboard is untouched, and it works in any app.

Cleanup you can read

Prompts are plain markdown files in your config folder. Edit them while mbl is running.

What it needs

Requirements

Apple Silicon running macOS 26 or later.
Microphone, Input Monitoring and Accessibility permissions, which macOS asks for on first launch.

For cleanup, one of

Best resultsCodex CLISigned in to your ChatGPT subscription.
or
Works offlineApple IntelligenceTurned on in System Settings.

You talk faster than you type.

Unzip, move to Applications, hold the key.

Download for Mac
Signed and notarised · updates itself