Speak into your phone.
It types on your computer.
BrainJack turns your phone into a voice-powered keyboard for any machine. Talk naturally, AI generates the text, and it arrives as real keystrokes on your computer — or stays on your phone's clipboard, ready to paste. Works with your phone mic, Meta glasses, AirPods, or any Bluetooth headset.
curl -fsSL https://brainjack.ai/install.sh | bash
irm https://brainjack.ai/install.ps1 | iex
Enter your email to get a TestFlight invite — 7 days of full Pro features, free. Love it? $5/mo on Patreon keeps Pro unlocked through beta — or buy it outright when it ships.
How it works
Three moving parts
Your phone captures your voice. A service on your computer receives the text. That's it.
You speak into the BrainJack app on your phone
On-device speech recognition converts your voice to text. It never leaves your local network.
AI turns your words into the right output
Not just dictation. Say "write a professional email declining this meeting" and it writes the whole email. Or just dictate normally — your choice.
Text arrives on your computer
The BrainJack service types it directly into whatever app has focus — like someone sitting at the keyboard. Or keep it on your phone's clipboard to paste wherever you need it. Works on Windows, macOS, and Linux.
Current status
What's working today
BrainJack is in active development and already usable for real work.
Voice to Clipboard
Speak on your phone, AI generates text, copied to your phone's clipboard. Paste or share from there.
Voice to Keystrokes
Text gets typed directly into the active window. Works on all three platforms.
AI Agent Mode
Ask the AI to write emails, letters, code — not just transcribe. Review on your phone before sending.
iOS App
Available now on TestFlight. Voice input, device management, trackpad, command sheets.
USB Dongle
A physical device that plugs into any computer and types as a USB keyboard. No drivers needed.
Android App
Android client is in development. The service already works — just needs the app.
How it works
Try it free. Stay if you love it.
Download from TestFlight and get 7 days of full Pro features — no card, no account. After that, $5/mo on Patreon keeps Pro unlocked through beta. When BrainJack hits the App Store, buy it once and own it forever.
- Full Pro features for 7 days
- On-device speech recognition
- Voice to keystrokes + clipboard
- AI agent mode
- No card required
- Pro features stay unlocked
- Cloud ASR minutes
- Early builds before public TestFlight
- Dev logs and behind-the-scenes
- Cancel anytime — buy outright later
- Buy once on the App Store
- Pro forever — no subscription
- Bring your own API keys
- Nothing goes to the cloud
- Supporters get a discount
Get started
Install the service, sign up for the trial
Install the service on your computer, drop your email below, and we'll send you a TestFlight invite — 7 days of full Pro features, free.
Open source. The service is source-available under BSL 1.1. Bring your own API keys. Your voice data stays on your network. The $5/mo Patreon keeps Pro unlocked during beta — or buy it once when it hits the App Store.