Native to macOS

All your email.
At home on the Mac.

Gmail, Microsoft 365, iCloud, Fastmail, and IMAP in one fast, native app. The AI runs locally, so your inbox stays yours.

Email me at launch See the app

Mac only · Requires macOS 26

Kestrel Mail showing an inbox and an open conversation with a coastal photograph.

AI that stays on your Mac

Catch up without handing over your inbox.

Summarize one message or a whole conversation with Apple Intelligence, or install Kestrel's enhanced local model for longer threads. Either way, your email never goes to a cloud AI service.

How local summaries work

Kestrel Mail in dark appearance showing a six-message conversation and its locally generated, sender-attributed thread summary.

Kestrel Mail showing a natural-language search resolved into editable From Maya Chen and Has attachment filters, with the matching message open.

Fast, private search

Search in your own words. Results as you type.

Type “messages from Maya with attachments” and Kestrel turns it into editable filters. It searches mail already indexed on your Mac.

Two speeds

Easy with a trackpad. Fast with the keyboard.

Everything is where you expect it: click, swipe, drag, done. And when you want to move faster, the Gmail shortcuts you already know are waiting. Some people never touch the mouse.

See all keyboard shortcuts

Kestrel Mail showing the Quick Navigation overlay filtered to matching mailboxes across two accounts.

No Kestrel cloud

Trackers blocked. Nothing collected.

Kestrel connects directly to your mail provider; there is no Kestrel server in between. A blocklist of several thousand tracking domains ships with the app and strips trackers before a message renders. Remote images stay off until you turn them on, and Kestrel collects nothing about how you use it.

Learn more

Private beta

Be first to know when Kestrel launches.

The public download is not ready yet. Leave your email and we’ll send one launch notice.