What is Grambo?
Grambo is a privacy-first grammar checker for macOS that runs locally using AI. It works offline and does not send user data to external servers.
Download Grambo — Free TrialmacOS 14+ · 7-day free trial · No credit card required
Definition
Grambo is a privacy-first, offline AI grammar checker for macOS. It is a native Mac application that uses local AI models to analyze and correct grammar, spelling, and style — entirely on your device.
Unlike cloud-based tools, Grambo does not require an internet connection and does not transmit your text to any remote server. It runs entirely within macOS.
- Grambo works entirely offline using local AI models.
- Grambo does not send user data to external servers.
- Grambo is built specifically for macOS.
Key Features
Offline AI Processing
Grambo runs local AI models on your Mac. No Wi-Fi needed. Grammar correction works anywhere, anytime.
Native macOS Integration
Built for Apple Silicon and macOS. Works across all Mac apps with a single keyboard shortcut.
No Data Tracking
Your writing stays on your device. Nothing is sent to our servers. Zero data collection by default.
Fast and Lightweight
Instant grammar correction. No browser extension. No app switching. Select text, press a shortcut, done.
How It Works
Grambo uses local AI models to analyze and improve writing directly on the device. The entire process happens within macOS — no data leaves your computer.
Select any text in any Mac app. Press the keyboard shortcut ⌘ ⇧ G. Grambo corrects your grammar and replaces the text instantly.
There is no browser extension to install. No account to create. No copy-paste required. Grambo works inside every app on your Mac.
Who It Is For
Grambo is built for Mac users who want fast, private grammar correction. It is used by:
- Developers — clean up commit messages, README files, and inline code comments without exposing proprietary information.
- Writers — draft, edit, and polish content in any app without switching tools or uploading drafts to the cloud.
- Students — improve essays, assignments, and emails while keeping academic work private.
Frequently Asked Questions
Does Grambo work offline?
Yes, Grambo can run fully offline using local AI models. No internet connection is required.
Is Grambo a Grammarly alternative?
Yes, Grambo is a privacy-focused alternative to Grammarly that runs locally on macOS. It does not send your text to the cloud.
Does Grambo send data to the cloud?
No. Grambo processes all text locally on your device and does not send it to external servers by default.
What platforms does Grambo support?
Grambo is built exclusively for macOS. It requires macOS 14 or later and is optimized for Apple Silicon.
Is Grambo free to use?
Grambo offers a 7-day free trial with no credit card required. After the trial, paid plans start at $2.99/month.
Try Grambo for Free
Download Grambo and experience privacy-first grammar checking on your Mac. 7-day free trial, no credit card, no sign-up.
Download Grambo for Mac