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 OS X Windows Linux

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 OS X 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 OS X Windows Linux Self-Hosted Python

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 OS X Windows Linux

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

Load Impact

How many users can my web site handle? Load Impact is an online load testing service that lets you stress test your web site with just a few mouse clicks. You can...

Freemium Web

Low Orbit Ion Cannon

LOIC is an open source network stress testing application, written in C#.

Free Open Source Windows Linux

blitz.io

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

Commercial Web

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

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

AgileLoad

Agileload is an entreprise-class performance testing tool which helps you creating your test scenarios fast and pinpoints performance issues whithin your application and...

Freemium Windows

PurpleStrike Real Time

PurpleStrike Real Time (RT) load tester is a turnkey performance testing services on the cloud with intuitive user interface. You can automate real applications and run...

Commercial Mac OS X Windows

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 OS X Windows Linux Chrome OS Web

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 OS X Windows Linux BSD

AppPerfect Load Test

AppPerfect Load Test is a fully automated load test, stress test and performance test solution that helps you design and simulate thousands of users in a realistic...

Free Mac OS X Windows Linux

Appvance

The Appvance Unified Test Platform is the Fastest Way to Test. Installed fully behind your firewall, in the cloud, or hybrid. Complete flexibility and security to...

Commercial Mac OS X Windows Linux

Neustar Website Load Testing

Neustar Website Load Testing, formerly BrowserMob, uses advanced cloud technology and has a variety of plans to cater to every client - customize a plan that suits your...

Commercial Web