JMeter - Load and Performance tester

•    Java

JMeter is a pure Java desktop application designed to load test functional behavior and measure performance. It may be used to test performance both on static and dynamic resources (files, Servlets, Perl scripts, Java Objects, Data Bases and Queries, FTP Servers and more). It can be used to simulate a heavy load on a server, network or object to test its strength or to analyze overall performance under different load types.

loadtest - Runs a load test on the selected URL. Easy to extend minimally for your own ends.

•    Javascript

Runs a load test on the selected HTTP or WebSockets URL. The API allows for easy integration in your own tests.Why use loadtest instead of any other of the available tools, notably Apache ab? loadtest allows you to configure and tweak requests to simulate real world loads.

LoadUI - Load Testing Tool

•    Java

loadUI deliver a visual, drag-and-drop interface which allows you to create, configure and redistribute your Load Tests interactively and in real-time. You can distribute your Load Tests across any number of loadUI Agents on local or remote machines, allowing you to simulate high volume and real-world load with incredible efficiency. It supprots wide range of protocols and technologies from HTTP(S), HTML, SOAP/WSDL and REST to AMF, JDBC, JMS and POX.

Grinder - Java Load Testing Framework

•    Java

The Grinder is a Java load testing framework that makes it easy to run a distributed test using many load injector machines. Load test anything that has a Java API. This includes common cases such as HTTP web servers, SOAP and REST web services, and application servers (CORBA, RMI, JMS, EJBs), as well as custom protocols.

Pylot - Performance & Scalability Testing of Web Services

•    Python

Pylot is a free open source tool for testing performance and scalability of web services. It runs HTTP load tests, which are useful for capacity planning, benchmarking, analysis, and system tuning. Pylot generates concurrent load (HTTP Requests), verifies server responses, and produces reports with metrics. Tests suites are executed and monitored from a GUI or shell/console.

OpenSTA - Open Systems Testing Architecture

•    C++

OpenSTA is a distributed software testing architecture designed around CORBA. The current toolset has the capability of performing scripted HTTP and HTTPS heavy load tests with performance measurements from Win32 platforms. Results and statistics are collected during test runs by a variety of automatic and user controlled mechanisms. These can include scripted timers, SNMP data, Windows Performance Monitor stats and HTTP results & timings.

Web Services Test Automation Guidance using VS 2010 - Unit Test & Web Test

Project suggests web services test automation guidance and provides reusable libraries using Unit Test/ Web Test in VS 2010. Key deliverable consists of reusable libraries for Unit Test and Custom Add-ins for Web Test that can be reused to reduce automation development effort.

SPContentLoader for Sharepoint 2010

SPContentLoader is a tool to upload test documents to a Sharepoint 2010 site. It will use a local folder as source and will randomize all content types, choice fields and enterprise metadata fields. It was used to upload 1 million records to a single document library !

SQL Load Test

This tool takes a SQL Profiler trace file and generates a unit test that replays the same sequence of database calls found in the trace file. The unit test is designed for Visual Studio Load Test. The code generated is easily modifiable so that data variation can be included.

WCF Load Test

This tool takes a WCF trace file and a WCF client proxy, or a WCF interface contract, and generates a C# unit test that replays the same sequence of calls found

Microsoft Visual Studio Team System Load Test Reporting Sample

This project contains a set of stored procedures and SQL Server 2005 Reporting Services reports for reporting on a load test result. It also contains an ASP.NET app that enables you to easily delete runs from the database and set the analysis comment on runs.

WebPALTT

•    DotNet

A Web performance and load test tool for testing web sites / web applications. Features include easy to use scenario builder and powerful scripting for high customisability. Developed in .Net C#.

CrossBow Web Stress Tester

This is a c# console application that can fire http GET or POST requests (with variables) to a web site. It is multithreaded and uses asynch WebRequests. The GET and POST variables can come from a text file to simulate differing requests as well as from the app.config. T...

Web and Load Test Plugins for Visual Studio Team Test

Contains custom validation rules, extraction rules, web test plugins and load test plugins for Visual Studio Web tests and Load tests.

Visual Studio Performance Testing Quick Reference Guide

A quick reference guide to help with performance testing aspects of Visual Studio

Magic Reports

Magic Reports is a Report generator for Visual Studio Load Test in docx format. It can create all graphs for counters and present as a docx report.

WebLoad - The best LoadRunner Alternative

•    Java

The WebLOAD Open Source Load Generation Engine is an open source project sponsored by RadView Software. This project is intended for ISVs, SIs and software developers who need to integrate a professional load generation engine into their applications.

socketio-load-test-artillery-example - Load testing scripts for Socket.io chatroom example

•    Javascript

This repo contains Artillery scripts for load testing the chatroom example bundled with Socket.io.

node-wrk - wrk load testing tool node wrapper

•    Javascript

wrk load test tool wrapper and output parser

phanos - This is a simple stress test tool. This tool just walk around yours site.

•    Javascript

Simple human like stress test tool. This tools doesn't provide any stat info, or special logging functionality. This tool just walking on yours site as true user.