ByteGuard – Track and control your browser data usage

Summary: ByteGuard is a privacy-focused Chrome extension that monitors real-time bandwidth usage per website, allows setting daily and monthly data budgets, and automatically enables low-data mode to prevent overages. It operates entirely locally using Manifest V3, declarativeNetRequest, and modern browser APIs.

What it does

ByteGuard tracks bandwidth consumption per site within the browser, provides real-time alerts, and enforces data limits by blocking images and videos via low-data mode. It also supports exporting usage data for backup and reporting.

Who it's for

It is designed for users with limited data plans, mobile hotspots, or unstable connections who need precise control over their browser data usage.

Why it matters

ByteGuard solves the lack of per-site data visibility and control in browsers, helping users avoid unexpected data overages while maintaining privacy by processing data locally.