
JPerf
netperf
Tessabyte
Flent
SASUnit
MacWiFi.live
Ostinato
A TCP, UDP, and SCTP network bandwidth measurement tool

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Which is more popular?
Based on our record, iperf seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | github.com | diffyn.com |
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What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of iperf yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Using Iperf to measure network speed / bandwidth
More videos
The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing iperf and Diffyn.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Diffyn's answer:
React, Next.js, POSTGRESQL
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
Share your experience with using iperf and Diffyn. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Iperf3 upstream project (source, releases, and official documentation). - Source: dev.to / 2 months ago
Just some clarification: IPerf 2 is different from the iperf3 found at https://github.com/esnet/iperf. - Source: Hacker News / over 2 years ago
Network - network throughput (both incoming and outgoing) is tested using iperf3 on several geographically diverse public iperf servers. Source: about 4 years ago
Tracking Diffyn since Jun 2025.
When comparing iperf and Diffyn, you can also consider the following products.
This project gives a better UI and new functionalities to the initial JPerf 1.
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Netperf is a benchmark that can be used to measure the performance of many different types of networking. It provides tests for both unidirectional throughput, and end-to-end latency. - HewlettPack...
Compare netperf to iperf or Diffyn:

Tessabyte is a professional Wi-Fi, LAN, and WAN test suite with TCP/UDP throughput, jitter, and QoS analysis, plus payload control, reporting, and scheduling—engineered for precision.
Compare Tessabyte to iperf or Diffyn:

SASUnit is a collection of programs and macros that are mostly used by networking experts to execute codes and verify results by inspecting datasets, macro-variables, and log files.
Compare SASUnit to iperf or Diffyn:

MacWiFi is a macOS menu bar app that tells you whether your internet is usable right now, and whether the problem is Wi-Fi, router, DNS, or your ISP.
Compare MacWiFi.live to iperf or Diffyn: