MouthPiece.
hold, speak, release

Speak it,
ship it.

Hold a key, say the messy version — ramble, back up, change your mind. MouthPiece hands back clean, publish-ready text in the tone you pick.

Free to start · local cleanup · clear about processing

Mac app · private beta

Free demo · browser speech

Turn a ramble into usable text.

15 sec works well
Voice recognition is unavailable in this browser

Speak a rough thought, or type one below. Browser speech recognition may send audio to your browser vendor; cleanup in this demo stays on this device.

AWhy MouthPiece

Your voice
stays
yours.

Clear about processing

Local where it can be

Clear about processing

Free cleanup runs in your browser. Browser speech recognition may use your browser vendor; Pro transcription sends audio to Groq. MouthPiece does not intentionally store recordings.

Free cleanup runs on-device
No audio saved to history
Provider use is disclosed
History controls stay visible
Start free
Start first.
Sign in later.

The core tool does not put registration in your way.

Start without signup

Sign in when it helps

Start without signup

Free works locally without an account. Sign in if you want account sync or Pro; private-link sync remains available as an option.

Free works without an account
Optional account sync
Pro follows your sign-in
Clear your history anytime
Open the app
Ramble in,
email out.

Filler words, false starts, and grammar slips disappear.

Six tones

Same voice, right register

Six tones

The cleanup pass rewrites your ramble for where it's going.

Auto
Email
Message
Formal
Notes
Comment
Try a tone

BHow it works

bar 1

Hold & talk

Press the dial or hold Space in the web app and say the messy version — ramble, back up, change your mind.

bar 2

Release

Your take is transcribed and polished into clean text in the tone you picked. Filler words and false starts vanish.

bar 3

Paste anywhere

It's already on your clipboard. Drop it into an email, a doc, a DM — wherever you were headed.

CMac app · private beta

Or dictate into any app.

The Mac build is being aligned with the browser product and prepared for signing. It is not a public download yet; the web app is the supported way to test MouthPiece today.

Public download paused

DQuestions

Is MouthPiece free?

Yes. Free works without an account and uses your browser's speech recognition plus local rule-based cleanup. Pro is a planned paid upgrade for managed transcription and higher-quality AI cleanup; checkout is not public yet.

Does my audio get uploaded?

It depends on the mode. Free browser speech recognition may send audio to your browser vendor's speech service. Managed Pro transcription uploads the recording to MouthPiece and forwards it to Groq. MouthPiece does not intentionally save audio recordings to its history database.

What is the difference between Free and Pro?

Free uses your browser's built-in speech recognition and rule-based cleanup that removes filler words and fixes punctuation. Pro adds managed Whisper transcription and AI rewriting through Anthropic or Groq for more substantial polishing.

Do I need an account?

Not to use Free on one device. You can optionally sign in with Google or an email link so history and future Pro access follow your account. Login-free private-link sync remains available as an alternative.

What tones can it write in?

Six: Auto, Email, Message, Formal, Notes, and Comment. The cleanup pass rewrites your speech for wherever it's headed.

Is there a Mac app?

A Mac app is in private beta. Its public download is paused while the shortcut behavior, production API, signing, and first-run permissions are verified.

MouthPiece 0.1 · privacyspeak it, ship it