What is Typeahead?

Typeahead is a writing assistant for macOS that completes your sentences as you type—across every app on your computer. Unlike cloud-based tools, it runs entirely on your Mac using a local AI model, so your words never leave your device. It works offline, adapts to your personal writing style, and helps you type faster without interrupting your flow.

Who it's for

• The email person – Sends 50+ emails daily and wants to finish repetitive phrases like "Thanks for reaching out" in a single keystroke.
• The developer – Spends half the day in Slack, PR descriptions, and issue write-ups, where Typeahead fills the gap that code autocomplete can't.
• The writer – Needs suggestions that sound like their own voice, not a generic bot, after just a few days of use.

Key features

Works in every Mac app

Typeahead integrates with any text field on your Mac—email clients, Slack, Notion, code editors, and more. If you can type in it, Typeahead works there.

Just press tab to complete

Suggestions appear inline as you write. Press tab to accept the completion. No extra clicks, no pop-ups, no friction.

Learns your voice

After a few days of use, Typeahead adapts to your writing patterns. The suggestions start sounding like you, not a generic AI.

100% private and offline

All processing happens on your Mac. No servers, no accounts, no telemetry. Works on a plane, in a coffee shop, or anywhere without internet.

What stands out

Your writing never touches a network. There's nothing to intercept.

That's the core promise of Typeahead. While most writing assistants send your text to the cloud for processing, Typeahead keeps everything local. There's no account required, no subscription, and no data ever leaves your machine. It's a fundamentally different approach to privacy—not just encrypted in transit, but never transmitted at all.

Worth checking out if…

You type a lot on your Mac and want to save 5–8 hours per week on repetitive typing, without sacrificing privacy. Typeahead is a one-time purchase that works offline, adapts to your voice, and integrates everywhere you write. If you've been avoiding cloud-based assistants because of privacy concerns, or if you just want autocomplete that works across every app, this is worth a look.