Bandwidth Monitor, created by pavel.v.puchkov, is a Chrome extension that gives immediate visibility into download performance inside the browser. It displays live download rates while you work, keeping the information visible without switching to external tools. The extension requires no configuration and surfaces speed data in a compact display, aimed at users who handle large file transfers or need to verify ISP throughput during browsing.

What specific metric does the tool use to report speeds?

Bandwidth Monitor reports download rates in megabytes per minute (MB/min), a deliberate choice to make time-to-completion easier to estimate for large files. The extension focuses on download throughput rather than uploads, and it does not provide an option to change the reported units. That single-unit approach simplifies interpretation but limits flexibility for users who prefer kilobits or megabits per second.

How light is the extension while running alongside other tabs?

The add-on uses a lightweight architecture intended to minimize resource impact, and it is designed to monitor traffic without interfering with data transfers or browser responsiveness. Because it runs inside the browser and activates when downloads occur, it avoids constant background polling typical of system-level network tools. The stated design goal is low resource consumption so the extension remains unobtrusive during normal browsing sessions.

What permissions and privacy considerations does it present?

The extension requires standard browser permissions to observe data throughput, which are necessary to display live transfer rates inside the interface. The project is maintained by the developer, who updates the extension as a focused utility, and users report positive feedback about its simplicity and convenience. The extension’s scope is narrow, so it does not attempt broader telemetry or device-wide network logging.

Which browsers and setups does it support and replace?

Bandwidth Monitor runs on Google Chrome and other Chromium-based browsers across desktop platforms, including Windows, macOS, and Linux. Because it places speed information directly in the browser environment, it reduces the need for separate, complex network-monitoring applications for quick throughput checks. The compact interface and cross-browser compatibility make it a straightforward add-on for Chromium environments.

Practical choice for on-the-spot download verification

Bandwidth Monitor is a focused utility that serves users who need quick, in-browser confirmation of download performance. Its narrow scope keeps the interface simple and dependable for spot checks. Users seeking bidirectional transfer monitoring or in-depth diagnostics will need a dedicated network tool, but those who want an unobtrusive readout inside Chromium browsers get a reliable, single-purpose option.