Alternatives to OpenSpeedTest
HTML5 speed test that can be self-hosted from a Docker image. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
OpenSpeedTest
HTML5 speed test that can be self-hosted from a Docker image.
Replacements
Listings that take over the same core job as OpenSpeedTest.
LibreSpeed
Self-hostable speed test with no Flash, Java or Websocket.
LibreSpeed is also a self-hostable browser speed test in plain JavaScript, licensed LGPL-3.0, with results that depend on where you host the server.
Cloudflare Speed Test
A browser-based internet speed test that measures throughput, latency, jitter and packet loss.
Cloudflare Speed Test is a hosted browser test that adds jitter, packet loss and quality scores, but sends your IP to Cloudflare and cannot be self-hosted.
FAST.com
A minimal browser speed test that estimates your download speed in a few seconds.
FAST.com is a hosted browser test that gives a quick download figure, with upload and latency hidden by default and no self-hosting option.
Speedtest CLI
Official Ookla speed test for the command line.
Speedtest CLI is Ookla's closed-source command-line client with JSON and CSV output for scheduled monitoring, testing against Ookla servers rather than your own.
iPerf3
Measures how fast a network link really is between two machines you control, which a speed test cannot.
iPerf3 measures link speed between two machines you control from the command line, reaching higher accuracy than browser-based tests but needing software at both ends.
nuttcp
Command-line tool for measuring TCP and UDP network throughput.
nuttcp is a command-line TCP and UDP throughput tester that handles higher speeds than browser tests, but must be installed on both ends of the connection.
Similar software
Related functionality, not a direct replacement.
gping
Ping with a live graph, so you can see latency spikes and packet loss instead of reading a column of numbers.
PingPlotter
Visualizes latency and packet loss hop-by-hop to find where a connection breaks down.
Downdetector
A website that shows whether online services, networks and games are down, based on real-time user reports.
