Apache JMeter is an open source Java application, designed to load test functional behavior and measure performance. Originally designed for testing Web Applications, it has since expanded to other test functions as well.




Loadjitsu is described as 'Powerful desktop load testing tool designed for developers who want simplicity without compromising performance. Built using Tauri, Loadjitsu combines the high-performance capabilities of Rust for backend processing with the flexibility of React for a' and is an website. There are more than 10 alternatives to Loadjitsu, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Self-Hosted apps. The best Loadjitsu alternative is Apache JMeter, which is both free and Open Source. Other great sites and apps similar to Loadjitsu are k6, locust, Loadster and Loader.io.
Apache JMeter is an open source Java application, designed to load test functional behavior and measure performance. Originally designed for testing Web Applications, it has since expanded to other test functions as well.




k6 is an open-source load testing tool. It's used to test the performance of websites, web apps, APIs and micro-services.

An open source load testing tool written in Python. Locust allows you to define user behaviour with Python code, and swarm your system with millions of simultaneous users.

Loadster is a full-featured load testing solution for websites, web apps, and web services. It's built for real web apps and effortlessly handles cookies, user sessions, custom headers, dynamic form data and more.
Loader.io is a simple cloud-based load testing service that allows you to stress test your web-apps & apis with thousands of concurrent connections. Made by the team behind SendGrid.

OctoPerf is an enterprise-grade performance and load testing platform available as SaaS and on-premise, enabling engineering teams to simulate realistic traffic, identify bottlenecks, and validate application scalability at a lower cost than traditional enterprise tools.



Gatling is a software designed for load and performance testing of web applications, APIs, and services. The software enables users to simulate user traffic and analyze the behavior and responsiveness of systems under various load conditions.


LoadRunner is a software testing tool used to test applications, measuring system behaviour and performance under load. LoadRunner can simulate thousands of users concurrently using application software, recording and later analyzing the performance of key components of the...

ab is a tool for benchmarking your web server. It is designed to give you an impression of how your current web server installation performs. This especially shows you how many requests per second your web server installation is capable of serving.

SmartMeter.io is a load and performance testing tool based on JMeter that is fixing its drawbacks while adding enterprise-level load testing features.
BlazeMeter is a self- service performance & load testing cloud, 100% JMeter-compatible. Easily run tests of 30k, 50k, 80k or more concurrent users, on-demand! Sign up and get a lifetime free tier to test! Time to test is minutes on our virtual testing lab.