Open-Source Tool Diagnoses Slow USB Tethering Without Using Mobile Data

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A developer has released 'tether-report', a free open-source diagnostic tool designed to identify why USB tethering is slower than expected, without consuming any cellular data by default. The tool works by reading information the operating system already holds — such as driver details, bus speed, MTU settings, and congestion control algorithms — rather than running data-heavy speed tests. Most popular speed-test tools spend roughly 56 MB of metered data before revealing any diagnosis, a costly trade-off for users on prepaid or limited data plans. tether-report reserves its optional measurement pass behind an opt-in flag that also discloses the data cost upfront before proceeding. The project, published on GitHub, is timed around International Day of Charity on September 5, with the author framing data-conscious defaults as a form of built-in generosity toward resource-constrained users.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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