Alternatives to FAST.com

A minimal browser speed test that estimates your download speed in a few seconds. The listings below can replace it for an important use case. Each note says what changes if you switch.

  • FAST.com

    A minimal browser speed test that estimates your download speed in a few seconds.

    FreeProprietaryWeb

Replacements

Listings that take over the same core job as FAST.com.

  • Cloudflare Speed Test

    A browser-based internet speed test that measures throughput, latency, jitter and packet loss.

    FreeProprietaryWeb

    Cloudflare Speed Test reports jitter, packet loss and quality scores for calls and gaming, which FAST.com lacks, but your IP address is sent to Cloudflare.

  • Speedtest CLI

    Official Ookla speed test for the command line.

    FreeProprietaryWindowsmacOSLinuxCommand line

    Speedtest CLI is Ookla's official command-line client with JSON and CSV output for scheduled monitoring, but it is closed source and licensed for non-commercial use by default.

  • LibreSpeed

    Self-hostable speed test with no Flash, Java or Websocket.

    FreeOpen sourceWebSelf-hosted

    LibreSpeed is an open-source speed test you host yourself, so it measures the path to your own server, with fewer analytics than commercial services.

  • OpenSpeedTest

    HTML5 speed test that can be self-hosted from a Docker image.

    FreeOpen sourceWebSelf-hosted

    OpenSpeedTest is an open-source HTML5 speed test that can be self-hosted from a Docker image, which suits internal LAN throughput testing.

  • Speedtest by Ookla

    An internet speed test for measuring download, upload and latency in the browser or apps.

    FreeProprietaryWindowsmacOSAndroidiOSWeb

    Speedtest by Ookla shows download, upload and latency together, picks a nearby server, keeps result history and has apps for most platforms.

  • nPerf

    Internet speed test measuring download, upload and latency, in the browser and as apps.

    FreeProprietaryWindowsmacOSAndroidiOSWeb

    nPerf measures download, upload and latency in the browser or in desktop and mobile apps, with a coverage map, testing only against nPerf's servers.

  • M-Lab Speed Test

    A browser speed test from Measurement Lab that publishes its measurement data openly.

    FreeProprietaryWeb

    M-Lab Speed Test uses openly licensed methods and reports retransmission, but your IP address is retained and published with the public results.

  • Waveform Bufferbloat Test

    Browser test that measures internet speed and how latency rises under load.

    FreeProprietaryWeb

    Waveform Bufferbloat Test measures how latency rises under load as well as speed, making it more useful for diagnosing lag in games and calls.

Similar software

Related functionality, not a direct replacement.