Free Apps with 'Load testing' feature

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.

Karate is the only open-source tool to combine API test-automation, mocks, performance-testing and even UI automation into a single, unified framework. The BDD syntax popularized by Cucumber is language-neutral, and easy for even non-programmers.

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.

wrk is a modern HTTP benchmarking tool capable of generating significant load when run on a single multi-core CPU. It combines a multithreaded design with scalable event notification systems such as epoll and kqueue.

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.

Parasoft is recognized by software development professionals as the leader in software development lifecycle automation. By integrating software development management, quality lifecycle management, and dev/test environment management through service virtualization, regression...

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.

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.

Tsung (formerly IDX-Tsunami) is a distributed load testing tool. It is protocol-independent and can currently be used to stress HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP and Jabber/XMPP servers. It is distributed under the GNU General Public License version 2.

HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom

FunkLoad is a functional and load web tester, written in Python, whose main use cases are:

Load testing tool for websites and mobile that works with hard-to-test applications.

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

curl-loader is an open-source tool written in C-language, simulating application load and application behavior of thousands and tens of thousand HTTP/HTTPS and FTP/FTPS clients, each with its own source IP-address.

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

WEBO Software is an innovative company focused on providing website performance solutions. Its product, WEBO Site SpeedUp, is a world leader in accelerating PHP based websites and has thousands of real installations.

Cloud Based Load & Performance Testing.

The Test Automation and Load Test Tool for Software Development.

Familiar with Selenium? You will love functional testing with XLT! It extends the concept with test data management, modules, variables, and macro functionality.

Choose your preferred way of writing tests. You ca.

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

A cloud-based load testing tool for web and mobile applications that let's record browser actions in order to load-test various usage scenarios.

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

OpenSTA is a distributed software testing architecture designed around CORBA, it was originally developed to be commercial software by CYRANO. The current toolset has the capability of performing scripted HTTP and HTTPS heavy load tests with performance measurements from Win32...

Neustar Web Performance offers load testing and website monitoring. A low-cost, reliable cloud testing solution using both virtual and real web browsers from a variety of locations to monitor and stress test your website.

LoadUIWeb is a free desktop tool for performance, stress, scalability and load testing of web applications. Yours to keep. No expiration. Try it today!