Best Open Source Load Testing Tools 2025

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Browse free open source Load Testing tools and projects below. Use the toggles on the left to filter open source Load Testing tools by OS, license, language, programming language, and project status.

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1

GoReplay

The Swiss Army knife for testing and monitoring

Increase confidence in code deployments, configuration changes and infrastructure changes with GoReplay! GoReplay is an innovative open source tool that captures and replays live HTTP traffic, using it to continuously test your system with real data. Now you don’t have to put up with risks that come with putting a third-party component in the critical path. With GoReplay you can analyze and record your application traffic without affecting it whatsoever. Use it for shadowing, load testing, monitoring and detailed analysis. You can trust GoReplay to accurately emulate production environments so you can make changes and deploy with confidence.

Downloads: 2 This Week

Last Update: 2023-09-07
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2

BrowserMob JavaScript Validator VNC

VNC for use with the BrowserMob Selenium JavaScript Validator. This tool is made available for users of BrowserMob FREE Website Monitoring and Load Testing. The BrowserMob Local Validation Service can be downloaded from https://browsermob.com/tools.

1 Review

Downloads: 0 This Week

Last Update: 2013-04-11
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3

LogiTest

LogiTest is a suite of applications to aid in the testing of web sites and web based applications. Applications in the suite include: LogiTest for functional and regression testing, LogiMonitor for real-time monitoring, and LogiLoad for load testing.

Downloads: 0 This Week

Last Update: 2013-03-22
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4

hammer-http

hammer is a Http load testing tool for Unix/Linux platforms. hammer reads scripts of XML that describe the load tests. hammer is implemented in C++ using Xerces-C and Commoncpp2.

Downloads: 0 This Week

Last Update: 2013-03-07
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5

jLlama Device Monitor

jLlama is a desktop application to monitor servers over SSH. Any figure retrieved from the command line can be polled and graphed in real time. Out of the box, jLlama can graph CPU and Memory usage for Linux and Solaris servers.

Downloads: 0 This Week

Last Update: 2013-04-26
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