Software Alternatives, Accelerators & Startups

iperf VS LibreSpeed

Compare iperf VS LibreSpeed and see what are their differences

iperf logo iperf

A TCP, UDP, and SCTP network bandwidth measurement tool

LibreSpeed logo LibreSpeed

Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly.
  • iperf Landing page
    Landing page //
    2023-09-17
  • LibreSpeed Landing page
    Landing page //
    2023-09-21

iperf videos

Using Iperf to measure network speed / bandwidth

More videos:

  • Tutorial - How to use iperf to test local network LAN speed in Windows 10
  • Review - [HOWTO] Test My Network Speed?! [iPerf & JPerf]

LibreSpeed videos

Self-host your own internet speed test with LibreSpeed!

More videos:

  • Demo - Tech Demo How To : Self Hosted Speed Test : libreSpeed

Category Popularity

0-100% (relative to iperf and LibreSpeed)
Monitoring Tools
85 85%
15% 15
Developer Tools
0 0%
100% 100
Log Management
100 100%
0% 0
Speed Test
0 0%
100% 100

User comments

Share your experience with using iperf and LibreSpeed. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, LibreSpeed should be more popular than iperf. It has been mentiond 33 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

iperf mentions (4)

  • Microsoft: Don't Use Iperf3 on Windows
    Just some clarification: IPerf 2 is different from the iperf3 found at https://github.com/esnet/iperf. - Source: Hacker News / about 1 month ago
  • Yet Another Bench Script (YABS): evaluate Linux server performance with this simple Bash script and utility
    Network - network throughput (both incoming and outgoing) is tested using iperf3 on several geographically diverse public iperf servers. Source: over 1 year ago
  • Speed testing Visible with a modem
    File transfer using iperf3 over Tailscale. I noticed that the bandwidth to my home computer (on a 500/500 fiber connection) was higher than with speedtest.net. For the first few days I was getting downloads and uploads of 28Mbps (+/- std dev of 6Mbps) and 150ms latency (+/- 35ms). After somewhere around 100GB total transfer (maybe half of that over Tailscale), it is now downloading and uploading at 10Mbps (+/-... Source: about 2 years ago
  • FTP upload speed isn't great
    I can add to this. I have two mini self contained projects to create multiarch static bins of mtr and iperf3 for general usage. Source: almost 3 years ago

LibreSpeed mentions (33)

  • Ask HN: Is Comcast ripping me off and how can I prove it?
    Try hosting a DIY speed test on a cloud server (like Google colab or the free oracle instances or whatever): https://github.com/librespeed/speedtest. - Source: Hacker News / 11 months ago
  • SSLVPN - Fluctuating bandwith
    It should be DIA. They provide the internet connection to the company since 2 decades and it's a very small ISP, so it's very vague in terms of contract. Iperf was giving me very terrible results with TCP, UDP was giving me a couple of Gbit/s throughput, definitely a wrong result. We are using this self hosted speedtest. All my results above are based on this software: Https://github.com/librespeed/speedtest. Source: about 1 year ago
  • Speedtests
    Put a copy of Librespeed on a web server that's accessible through the VPN and told them to use that. For (our) convenience, it's logged into a database that's correlated with the VPN login/logout times so the users don't even need to log in to use it, but we still know whose test result it is. Source: about 1 year ago
  • Fooling My ISP
    There is a selfhosted solution for speed testing called LibreSpeed. You could try it and see the results. Source: over 1 year ago
  • How much are you 'trusting' a docker image from hub.docker.com?
    In this particular instance though, adolfintel appears to be the developer of Librespeed. The official documentation in that GitHub repo points to that docker image by adolfintel. Therefore, it counts as the official docker image in my book. Source: over 1 year ago
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What are some alternatives?

When comparing iperf and LibreSpeed, you can also consider the following products

JPerf - This project gives a better UI and new functionalities to the initial JPerf 1.

Fast.com - Quickly test your internet speed with this fast-loading speed test powered by Netflix.

Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.

SpeedOf.Me - SpeedOf.Me is an HTML5 Internet speed test. No Flash or Java needed!

mtr - mtr combines the functionality of the 'traceroute' and 'ping' programs in a single...

Speedtest.net - Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test from Ookla