speedtest

Monitoring & Metrics

A lightweight, client‑side speed test written in JavaScript that measures download, upload, ping and jitter without Flash, Java or WebSockets.

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JavaScript Latest v6.1.0 · 1mo ago Security brief →

Features

Download & Upload measurement via XMLHttpRequest
Ping and Jitter detection using Web Workers
Optional IP/ISP lookup, telemetry, result sharing and CSV export
Stability test with live latency charting and threshold alerts
Supports both classic HTML UI and a modern SPA UI

Recent releases

View all 5 releases →

v6.1.0 Breaking risk 1mo

Notable features

Docker TAGLINE environment variable customization for modern frontend
Improved special-character handling for taglines in Docker setups
Updated GeoIP backend assets (geoip2.phar, country_asn.mmdb)

Full changelog

Release Summary

This release introduces Docker TAGLINE customization for the modern frontend, refreshes GeoIP assets, and includes release-agent metadata maintenance in .github/agents.

Release Notes

v6.1.0

Summary

LibreSpeed 6.1.0 adds a new Docker customization option for the modern UI and includes backend GeoIP data refreshes and project maintenance updates.

Highlights

Added Docker TAGLINE environment variable customization for the modern frontend slogan.
Improved handling and coverage for special-character taglines (including apostrophes) in Docker-based setups.
Updated GeoIP backend assets (geoip2.phar and country_asn.mmdb).

Breaking Changes

None identified.

Migration Notes

Optional: if using Docker and modern frontend, you can now set TAGLINE to customize the displayed slogan.

Acknowledgments

Thanks to contributors in #794 and related maintenance updates.

View release on GitHub

v6.0.2 Breaking risk 1mo

Notable features

Proper HTML element and aria-label for start/stop button accessibility
E2E testing with Playwright added
Restored Docker TITLE environment variable handling and legacy EMAIL fallback

View release on GitHub

v6.0.0 Mixed 1mo

Notable features

New visual design implementation from proposal #649
PHP version check fix for geoip2.phar compatibility
IPv6 address fix via cloudflared

Full changelog

What's Changed

Implement the new design from #649 by @sstidl in https://github.com/librespeed/speedtest/pull/694
Fix PHP version check for geoip2.phar compatibility by @Copilot in https://github.com/librespeed/speedtest/pull/754
Add .NET client library to README by @Memphizzz in https://github.com/librespeed/speedtest/pull/739
fix: return client IPv6 address via cloudflared by @MattKobayashi in https://github.com/librespeed/speedtest/pull/757

New Contributors

@Memphizzz made their first contribution in https://github.com/librespeed/speedtest/pull/739
@dependabot[bot] made their first contribution in https://github.com/librespeed/speedtest/pull/763

Full Changelog: https://github.com/librespeed/speedtest/compare/v5.5.1...v6.0.0

View release on GitHub

v5.5.1 Bug fix 4mo

Fixed Docker entrypoint SQLite database matching to resolve container startup issues.

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