ChatterKey Download v4.5.0
Native AI voice typing for macOS

Your voice.
Polished into text.

Hold a shortcut and turn your voice into polished text in any Mac app, using Gemini 3.5 Flash-Lite through OpenRouter, with personal vocabulary and voice snippets built in.

New in v4.5.0One audio model. One request. All writing modes.→
Download for macOS View on GitHub

Apple Silicon · macOS 14+ · Ad-hoc signed community-test build, not Apple-notarized. Release notes & SHA-256 checksum.

⌨ Type in supported apps ↗ Local usage dashboard A✓ Custom AI instructions 🔑 Your API key
ChatterKey transforming a spoken thought into polished text
FnHold to speak
✓Inserted
VOICE → POLISHED TEXTANY MAC APPYOUR API KEYONE AUDIO MODELNO ANALYTICSOPEN SOURCE
How it works

From thought to finished text
in one natural flow.

No separate editor. No copy-paste ritual. No translating in your head before you speak.

01

Hold and speak

Press your chosen shortcut and speak naturally in your own words and style.

“I need to send the client a clear update…”
02

AI understands intent

One Gemini audio request transcribes, translates, and applies your selected writing style—no separate polishing call.

03
✓

Ready where you need it

Polished text is inserted directly into Slack, Mail, Notion, VS Code, browsers, and more.

Could you please rewrite this as a professional email?
Features

One voice. A smarter writing flow.

From spoken words to polished text—with AI that understands what you mean and how you write.

Listening…

I’ll send the report
by end of day

1

Live transcription

See every word as it’s spoken, then receive polished final text.

Let’s move this to next week.

↓

Let’s push this to next week.

2

Magic Voice Edit

Select text and speak an instruction to rewrite it in place.

acme corp→✓
Acme Corp→✓
3

Personal vocabulary

Teach names, products, and exact spellings once. Use them everywhere.

⌁ “meeting intro”
↓

Hi everyone, thanks for joining. Here’s what we’ll cover today…

4

Voice snippets

Save spoken cues and expand reusable text anywhere you type.

↗ Cost & usage dashboard◷ Local history⌁ Custom AI promptsAa Eight writing modes↵ Spoken formatting◌ One configurable model⌘ Clipboard-safe insertion
↗
NEW IN 4.5

One model, every mode

Gemini 3.5 Flash-Lite handles dictation, translation, verbatim, and voice edits in one request per attempt.

⌁
NO HIDDEN CALLS

You control Retry

No separate transcription, polishing, repair, or automatic fallback requests. Retry only when you choose.

◷
FIXES & TRANSPARENCY

Better edits, clearer costs

Improved selection capture and audio-token cost estimates. Existing settings and local history migrate safely.

Use it your way

One shortcut. Every place you write.

Founders & teams

Turn fast thoughts into clear communication.

Dictate Slack updates, product notes, meeting summaries, and client emails without slowing down to translate or type.

  • Professional email mode
  • Reusable meeting snippets
  • Concise team updates
Built for ownership

Your voice workflow.
Your choices.

ChatterKey is an open-source Mac utility—not another account, subscription, or closed transcription service.

01

Bring your own API keyYour key stays in macOS Keychain.

02

No ChatterKey analyticsNo project-operated tracking or transcription backend.

03

Local dashboard & historyUsage metrics stay local; transcript history remains optional and audio is never stored there.

GGemini OROpenRouter 1One model

Audio and instructions go together to your selected model through OpenRouter. Gemini 3.5 Flash-Lite is the default.

Ready when you are

Stop translating your thoughts.
Start expressing them.

Speak naturally. Write confidently—anywhere on your Mac.

Download ChatterKey Explore the source
Free and open source · macOS 14+ · Bring your own API key