Libre Real‑Time Glucose Monitor by Takeshi Mikuriya

Libre Real‑Time Glucose Monitor provides your latest glucose value and a clear 12‑hour trend sourced directly from your LibreLinkUp/LibreView account. It displays real‑time readings, trend arrows, interactive chart tooltips, optional alerts, and supports both English and Japanese. All data is transmitted only to LibreLinkUp/LibreView and stored locally.
Medical Disclaimer
This extension is not a medical device and does not provide medical advice, diagnosis, or treatment. It is intended solely for informational display of data retrieved from your LibreLinkUp/LibreView account. Do not change your medication, diet, or treatment plan based on this extension. Always consult a qualified healthcare professional for decisions about your health. If you experience symptoms or readings that concern you, follow your care plan and contact your clinician or local emergency services as appropriate.
This extension offers a clean, focused interface designed for quick insight during daily PC use. The popup displays a large real‑time glucose value, your trend arrow, timestamp, and an interactive 12‑hour glucose graph with time markers and hover‑based tooltips. A badge on the browser toolbar also shows your latest reading for at‑a‑glance monitoring while you work.
Key Features

Real‑time glucose value displayed directly on the toolbar
Large, easy‑to‑read value in the popup
Trend arrow indicators (↑↑, ↑, ↗, →, ↘, ↓, ↓↓)
Interactive 12‑hour trend graph with time axis and tooltips
Optional desktop notifications when glucose is outside custom thresholds
Supports mg/dL and mmol/L
English / Japanese interface switching
Secure authentication with your LibreLinkUp account
No analytics, no tracking, no third‑party sharing

How It Works
The extension connects securely to LibreLinkUp/LibreView using your account credentials. It fetches the latest glucose reading and the recent 12‑hour glucose curve, then updates the popup and toolbar badge. Glucose data is not stored outside the browser and is refreshed based on your chosen interval.
Privacy & Data Handling
This extension transmits data only to the official LibreLinkUp/LibreView API to authenticate and retrieve glucose information. No data is sent to any other service. Settings and recent readings are stored locally within your browser only. The extension does not include analytics, advertising, or third‑party integrations.
Ideal For

Users who monitor glucose throughout the day
People who work on a PC for long hours and want quick access to readings
Anyone who prefers a simple, privacy‑respecting glucose display