A modern Windows desktop viewer for LibreView / LibreLinkUp glucose data.

Glimmer is a lightweight, modern Windows app built with WinUI 3 that displays real-time glucose readings from LibreView / LibreLinkUp.

It features:

• ✔ Clean, minimal UI
• ✔ Color-coded glucose status droplet
• ✔ Trend arrows (rising, falling, stable)
• ✔ Large, readable glucose number
• ✔ Fluent-style glass card
• ✔ Login screen with secure credential handling
• ✔ Installs via MSIX package
• ✔ Completely offline after login — reads only from Libre cloud APIs

⚠️ Note: This project is unofficial and not affiliated with Abbott, Libre, LibreView, or LibreLinkUp.

Latest glucose reading with trend and timestamp.

Enter your LibreView/LibreLinkUp credentials to connect.

• Live glucose value pulled from Libre cloud services
• Dynamic color droplet reflects low/in-range/high glucose states
• MDL2 trend arrows indicating up/down/stable changes
• Timestamp labeling to highlight stale or expired sensor data
• Blurred glass background behind the main reading
• Single-window, distraction-free UI
• MSIX-packaged, safe and clean installation

• WinUI 3 (Windows App SDK)
• .NET 8
• LibreLinkUp REST endpoints (unofficial)
• MSIX packaging
• C# + MVVM architecture

You can download the latest release here:

👉 Download Glimmer (Releases)

1. Download the .msix from the latest release
2. Double-click the file
3. Click Install

If Windows shows a SmartScreen prompt:

• Click More info → Run anyway

(Occurs because the app is unsigned. This is normal for hobby/open-source MSIX packages.)

When first launched:

• Enter your LibreLinkUp email + password
• Glimmer saves no data locally except auth tokens required to perform API calls
• You can log out at any time

This project is:

• ❌ Not affiliated with Abbott, Libre, LibreLink, or LibreLinkUp
• ❌ Not a medical device
• ❌ Provided as-is without any guarantee of accuracy or reliability

Always use your official Libre apps for medical decisions.
Glimmer is a convenience dashboard only.

git clone https://github.com/danishm/glimmer.git
cd glimmer

Open the solution:

Glimmer.sln

Build & run using Visual Studio 2022.

• Graph of recent readings
• Notifications for high/low readings
• Optional compact widget mode
• Local history caching
• Multiple-account support

Contributions, issues, and pull requests are welcome.

Feel free to open:

• Bug reports
• Feature requests
• UI/UX improvements

This project is licensed under the MIT License.
See LICENSE for details.

• LibreLinkUp API community research
• WinUI 3 & Windows App SDK teams
• Everyone contributing feedback and ideas