Best benchmark.js Alternatives & Competitors in 2025

A performance playground for JavaScript developers. Easily create and share test cases and run cross-browser benchmarks to find out which code snippet is most efficient.

NetIO-GUI is a Windows frontend for the multiplatform commandline utility 'netio'.

Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.

Try for free freemium $9.0 / Monthly (Lite plan)

A TCP, UDP, and SCTP network bandwidth measurement tool

PowerShell Iperf GUI - A PowerShell script to start iperf and show the output (similar to Jperf).

Javascript performance benchmark playground based on Benchmark.js.

LAN Speed Test is a FREE utility designed to accurately measure LAN speeds.

NetStress is a user-friendly benchmarking tool that is mostly used by networking professionals to measure the network performance of both wired and wireless connections.

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

Open Source

PingPlotter is a troubleshooting tool that helps IT professionals and neophytes identify, diagnose, and resolve network issues.

Customizable, graphical, semi-transparent ping (latency) meter.

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...

TamoSoft Throughput Test is a utility for testing the performance of a wireless or wired network.

FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.