Apache JMeter

Apache JMeter is an open source Java application, designed to load test functional behavior and measure performance. Originally designed for testing Web Applications, it...

Free Open Source Mac Windows Linux

locust

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...

Free Open Source Mac Windows Linux Self-Hosted Python

Loader.io

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...

Freemium Web

Gatling

Gatling is an open-source load testing framework based on Scala, Akka and Netty.

Free Open Source Mac Windows Linux Self-Hosted Maven

Loadrunner

Discover how HP performance, stress, and load testing software LoadRunner can prevent costly application performance problems.

Commercial Windows

OctoPerf

OctoPerf is a SaaS load testing solution, based on JMeter. Stress test your web and mobile apps within minutes. Design realistic virtual users. Scales to thousands of...

Commercial Mac Windows Linux

blitz.io

Blitz makes load and performance testing of your web site, API, iPhone and Android and Facebook apps a fun sport.

• Discontinued Official shut down announced for 2018, no new or renewed subscriptions allowed now.

Commercial Web

CloudTest

Load Testing of Web Sites, Mobile Applications, Web Services, and Web Sockets. Real-Time Analytics, Public Cloud load injectors, rapid test development, real user data...

Commercial Mac Windows Linux Web Chrome OS ... Windows RT Self-Hosted

WAPT

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...

Commercial Windows

Flood.io

Load Testing for Everyone Whether you need to load test a single URL, simulate realistic user scenarios with JMeter, or execute extremely large concurrency and...

Commercial $ $ $ Web

SmartMeter.io

SmartMeter.io is a load and performance testing tool based on JMeter that is fixing its drawbacks while adding enterprise-level load testing features.

Freemium Mac Windows Linux

Yandex.Tank

Yandex.Tank is an extendable open source load testing tool for advanced linux users which is especially good as a part of automated load testing suit.

Free Open Source Linux

Cavisson NetStorm

NetStorm is a performance/load testing tool with many features to check the application before it goes online.

Commercial Linux Ubuntu

LoadFocus

Free Cloud Load Testing Service, Speed Testing for Websites, Applications and APIs. Helps you run load and performance tests from within browsers in minutes.

Freemium Web

Apica ProxySniffer

Apica ProxySniffer ™ is a professional and high-duty Web Load and Stress Testing Tool that runs on Java.

Freemium Mac Windows Linux BSD