PostureGuard: Open-Source Tool Uses MediaPipe and Electron to Detect Bad Posture

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A developer tutorial on DEV Community introduces PostureGuard, a real-time desktop posture monitoring application built with MediaPipe, OpenCV, Electron, and Vue.js. The tool uses a webcam to track key body landmarks — specifically the ear, shoulder, and nose — and calculates head tilt angles to detect forward head posture, commonly called 'tech neck.' A Python-based vision engine runs pose estimation on a standard CPU using MediaPipe's lightweight BlazePose model, making it accessible without dedicated GPU hardware. The vision engine communicates with the Electron frontend via a WebSocket bridge, triggering on-screen alerts when the user's head tilt exceeds a 25-degree threshold. The project is aimed at developers seeking a lightweight, background utility to improve posture during long computing sessions.

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