blitz.io is described as 'Blitz makes load and performance testing of your web site, API, iPhone and Android and Facebook apps a fun sport' and is an website. There are more than 25 alternatives to blitz.io, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Self-Hosted apps. The best blitz.io alternative is Apache JMeter, which is both free and Open Source. Other great sites and apps similar to blitz.io are locust, Loader.io, Loadster and Low Orbit Ion Cannon.
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.
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.
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.
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.
YandexTank is an extensible open source load testing tool for advanced linux users which is especially good as a part of an automated load testing suite.
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.
It will continue to exist, realistic user visiting behavior can be configured.
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.
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...
WAPT Pro is a load and performance testing tool that works for any web site from a simple web service to a customized ERP or CRM solution. Mobile web applications, corporate portals and intranet sites implemented with any technologies can be easily tested with WAPT Pro.
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It has a nice (and usable) free plan, and it's simpler than Load Impact