Best Open Source Network Tools in 2026
Tools for network testing, monitoring, diagnostics, and performance measurement including speed tests, ping tools, and bandwidth analysis.
The most popular pick this year is LibreSpeed with 14,602 GitHub stars, but all 2 options below are worth considering depending on your needs.
2 open source network tools — ranked by GitHub stars. Browse all
LibreSpeed
Self-hosted speed test with easy setup, supports PHP and Node.js backends, mobile-friendly, and highly configurable.
Speedtest by Ookla
OpenSpeedTest
Free and open-source HTML5 network performance estimation tool using only built-in web APIs — no third-party frameworks required.
Speedtest by OoklaHow we rank these tools
Tools are ranked by GitHub stars as a proxy for community adoption and trust. Stars reflect how many developers found a project valuable enough to bookmark — a reasonable signal for quality in the open source world. We only list tools that are actively maintained and open source.
Looking for tools you can run yourself? Browse self-hosted network tools →