Measuring quality

Continuous internet speed test tool

  • Internet speed test with long duration: long-term download and upload bandwidth (speed) test tool
  • HTML (online), Windows, Linux, Android versions, free and open source software
  • Measures download and upload bandwidth, packet loss and round trip time (RTT, ping)
  • Measures and tracks bandwidth of your internet connection during a long (unlimited) period of time
  • Measures reliability of internet connection (uptime in percents, max. downtime)
  • Tracks connection outages and drops of bandwidth

Use cases

  • Selecting the fastest and most reliable internet provider - 3G, 4G LTE, wifi, satellite, ADSL, FTTx
  • Measuring reliability of internet connection for mission critical applications, for consumer applications (e.g. youtube)
  • Testing stability of wifi, LTE network adapters
  • Selecting best wifi/3G/4G router/modem location, best antenna orientation
Android version
Download for Android

HTML version (online speed test in browser)
Upload data size: KB
Download data size: KB
Min. period of tests: seconds
Send current status to email send
Email subject (test description)
  • You may get inaccurate measurements due to HTML5 browser performance limitations. For better accuracy please use a windows version.
  • All browser-based tests are inadequate if you measure internet speed for VoIP apps (skype, WhatsApp, Viber), video conference apps, other real-time communication applications like Forex trading apps. Therefore we recommend you our free VoIP readiness test.

Windows version
Download for Windows

Linux version

Source code
Frequently asked questions
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