Sites and apps similar to UserLimit include Apache JMeter, which is free and open source. Other options are locust, k6, Loadster and Loader.io. You can choose from more than 10 Website Monitoring Tools like UserLimit for Windows, Linux, Mac, self-hosting and Android.
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.
United States
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.
k6 is an open-source load testing tool. It's used to test the performance of websites, web apps, APIs and micro-services.
Sweden
EU
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.
United States
Managed load testing platform built on k6, integrating performance testing into CI/CD pipelines, supporting frontend and backend scenarios, GUI test builder, browser recorder, and JavaScript scripting. Free tier offers virtual user hours, metrics, logs, traces, and observability.
United States
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.
United States
Free Cloud Load Testing Service, Speed Testing for Websites, Applications and APIs. Helps you run load and performance tests from within browsers in minutes.
United States
The most flexible and cost effective performance testing software solution for enterprise load, performance, and stress testing. See why.
Israel
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.
NeoLoad is a load and stress testing tool to measure the performance of web and mobile applications. NeoLoad is designed, developed and marketed by Neotys, a company based in Gémenos, France.
