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.

jmeter - Mirror of Apache JMeter

•    Java

Apache JMeter may be used to test performance both on static and dynamic resources, Web dynamic applications. It can be used to simulate a heavy load on a server, group of servers, network or object to test its strength or to analyze overall performance under different load types.Full featured Test IDE that allows fast Test Plan recording (from Browsers or native applications), building and debugging.

yandex-tank - Load and performance benchmark tool

•    Python

Load and performance benchmark tool

taurus - Automation-friendly framework for Continuous Testing by

•    Python

Hides the complexity of performance and functional tests with an automation-friendly convenience wrapper. Taurus relies on JMeter, Gatling, Locust.io, Grinder and Selenium WebDriver as its underlying tools. Free and open source under Apache 2.0 License. More detailed instructions for Linux, Mac OS and Windows available here.

Gatling - Stress Testing Tool

•    Scala

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

Vegeta - HTTP load testing tool and library.

•    Go

Vegeta is a versatile HTTP load testing tool built out of a need to drill HTTP services with a constant request rate. It can be used both as a command line utility and a library.Get them here.

k6 - A modern load testing tool, using Go and JavaScript - https://k6.io

•    Go

A modern load testing tool for developers and testers in the DevOps era. k6 is a modern load testing tool, building on Load Impact's years of experience in the load and performance testing industry. It provides a clean, approachable scripting API, local and cloud execution, flexible configuration, with command & control through CLI or a REST API.

locust - Scalable user load testing tool written in Python

•    Python

Locust is an easy-to-use, distributed, user load testing tool. It is intended for load-testing web sites (or other systems) and figuring out how many concurrent users a system can handle. The idea is that during a test, a swarm of locusts will attack your website. The behavior of each locust (or test user if you will) is defined by you and the swarming process is monitored from a web UI in real-time. This will help you battle test and identify bottlenecks in your code before letting real users in.

karate - Test Automation Made Simple

•    Java

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. Powerful JSON & XML assertions are built-in, and you can run tests in parallel for speed.

Apache JMeter - Pure Java application for load and functional testing

•    Java

Apache JMeter 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. You can use it to make a graphical analysis of performance or to test your server/script/object behavior under heavy concurrent load.

wrk - Modern HTTP benchmarking tool

•    C

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 .An optional LuaJIT script can perform HTTP request generation, response processing, and custom reporting. Details are available in SCRIPTING and several examples are located in scripts/.

Siege - Http load tester and benchmarking utility

•    C

Siege is an open source regression test and benchmark utility. It can stress test a single URL with a user defined number of simulated users, or it can read many URLs into memory and stress them simultaneously. The program reports the total number of hits recorded, bytes transferred, response time, concurrency, and return status. Siege supports HTTP/1.0 and 1.1 protocols, the GET and POST directives, cookies, transaction logging, and basic authentication. Its features are configurable on a per user basis.

bombardier - Fast cross-platform HTTP benchmarking tool written in Go

•    Go

bombardier is a HTTP(S) benchmarking tool. It is written in Go programming language and uses excellent fasthttp instead of Go's default http library, because of its lightning fast performance.With bombardier v1.1 and higher you can now use net/http client if you need to test HTTP/2.x services or want to use a more RFC-compliant HTTP client.

awesome-checker-services - ✅ List of links to the various checkers out there on the web for sites, domains, security etc

List of links to the various checkers out there on the web for sites, domains, security etc. This started as a small personal project.

ali - Generate HTTP load and plot the results in real-time

•    Go

ali is a load testing tool capable of performing real-time analysis, inspired by vegeta and jplot. It comes with an embedded terminal-based UI where you can plot the metrics in real-time, so lets you perform real-time analysis on the terminal.

Apache Bench - Apache HTTP server benchmarking tool

•    C

ab is a tool for benchmarking your Apache Hypertext Transfer Protocol (HTTP) server. It is designed to give you an impression of how your current Apache installation performs. This especially shows you how many requests per second your Apache installation is capable of serving.

jmeter-ec2 - Automates running Apache JMeter on Amazon EC2

•    Shell

This shell script will allow you to run your local JMeter jmx files either using Amazon's EC2 service or you can provide it with a simple, comma-delimited list of hosts to use. Summary results are printed to the console as the script runs and then all result data is downloaded and concatenated to one file when the test completes ready for more detailed analysis offline. By default it will launch the required hardware using Amazon EC2. Using AWS it is much easier and cheaper to scale your test over multiple slaves but if you need to you can also pass in a list of pre-prepared hostnames and the test load will be distributed over these instead. Using your own servers can be useful when the target server to be tested can not be easily accessed from a location external to your test network or you want to repeat a test iteratively.

Tsung - Distributed Load Testing Tool

•    Erlang

Tsung is an open-source multi-protocol distributed load testing tool. It can be used to stress HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP and Jabber/XMPP servers. The purpose of Tsung is to simulate users in order to test the scalability and performance of IP based client/server applications. You can use it to do load and stress testing of your servers. Many protocols have been implemented and tested, and it can be easily extended.

jmeter-maven-plugin - The JMeter Maven Plugin

•    Java

A plugin to allow you to run Apache JMeter tests with Maven.

GoBench - HTTP/HTTPS load testing and benchmarking tool

•    Go

GoBench is a HTTP/HTTPS load testing and benchmarking tool. Its requests hits and requests rate are 5X better than other testing tools.