Your glucose,
one glance away.
LibreBar puts your FreeStyle Libre reading in the Mac menu bar — live number, trend arrow, and a 12-hour chart. Native, private, and always there.
Free · macOS 14 or later · Apple Silicon & Intel
Everything you need.
Nothing you don't.
LibreBar does one job with care: keep your current glucose where your eyes already are.
Always in the menu bar
Your latest reading and trend arrow, refreshed every minute. A stale-data marker tells you the moment the numbers stop being current.
12-hour chart
Click for a full picture: your target range shaded in green, and any stretch below it drawn in red — aligned to the band, exactly.
Desktop widgets
Small, medium, and large widgets keep glucose on your desktop. They mirror the menu bar within a minute, automatically.
mg/dL and mmol/L
One click switches units everywhere — menu bar, panel, chart, stats, and widgets stay consistent.
Zero upkeep
Launch at Login keeps LibreBar always running, and the app tells you when a new version is out — you'll never need to check back here.
Native, all the way down
SwiftUI, Swift Charts, and WidgetKit. It looks and behaves like part of macOS because it's built from exactly what macOS is built from.
Widgets for every desktop.
Three sizes, one source of truth. The large widget carries the full story: reading, chart, and 12-hour stats.
How it works.
Macs can't talk to Libre sensors directly — no NFC, no sensor pairing. LibreBar reads your data through Abbott's LibreLinkUp sharing service, the same one family members use to follow a loved one's glucose.
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Share from LibreLink
In the LibreLink app on your phone, connect LibreLinkUp and invite yourself. Your phone keeps uploading readings as it already does.
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Accept in LibreLinkUp
Sign in to the LibreLinkUp app with your follower account and accept the invitation. That account is what LibreBar uses.
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Sign in to LibreBar
Enter the LibreLinkUp account in LibreBar once. Your password goes to the macOS Keychain, and readings appear within a minute.
Private by architecture, not by promise.
- Keychain only. Your credentials live in the macOS Keychain — never in files, preferences, or logs.
- Two destinations, both yours to see. Glucose data flows only between your Mac and Abbott's LibreView servers. Once a day the app also fetches a tiny version file from librebar.app to tell you about updates — nothing about you is sent. No analytics, no telemetry, no third parties.
- Sandboxed. The app runs in the macOS App Sandbox with network-client access and nothing more.
- Local first. Readings are cached only to feed your widgets, on your Mac, in the app's own container.
LibreBar is not a medical device. It is a convenience display for data your FreeStyle Libre system already collects. Never use it for treatment decisions — confirm with the LibreLink app or your reader.
FreeStyle Libre, LibreLink, LibreLinkUp, and LibreView are trademarks of Abbott. LibreBar is an independent project, not affiliated with or endorsed by Abbott, and uses the unofficial LibreLinkUp API.
Get LibreBar.
LibreBar is free, native, and notarized by Apple. Download it, drop it in Applications, and sign in with your LibreLinkUp account.
Download LibreBar Set up LibreLinkUp first
Version 1.2.1 · 0.6 MB · notarized · updates announced in the app
Requires macOS 14 Sonoma or later, a FreeStyle Libre sensor, the LibreLink phone app, and a LibreLinkUp follower account.