Top Open-Source Tools to Consider for Web Service Performance Testing
                     Top Open-Source Tools to Consider for Web 
Service Performance Testing 
The performance of your web application transforms your business more than you can 
imagine. Enterprises have started considering web service performance testing as a crucial 
part of their products development life cycle. 
Unfortunately, most companies do not routinely test the performance and scalability of their 
products, and most lack the tools to do so correctly. 
Though you can find several paid tool options out there, for the right organization, free and 
   o  p  e n-source tools may be a good alternative—or the perfect addition to your business 
toolset.
Following are the best open-source tools to consider for Web Service Performance Testing :
Locust.io – This is an excellent tool for understanding the performance on the server-side.
Bees with Machine Guns – The authors define it as a convenience for providing many bees 
to attack targets.
Multi-Mechanize – This is an open-source framework for performance and load testing that 
runs parallel Python scripts to generate load against a remote site or service. It’s generally 
used for web performance and scalability testing, but you can also use Multi-Mechanize to 
create a workload against any remote API available from Python.
Siege – This HTTP load-testing and benchmarking service were created to let web 
developers test code under duress, to understand how it will stand up to load on the 
Internet. Siege continues basic authentication, cookies, and HTTP and HTTPS orders, and 
lets the user hit a web server with a configurable number of simulated web browsers. 
Apache Bench – Use this tool for benchmarking your Apache HTTP server, to get an opinion 
of how Apache operates.
Httperf – This tool estimates web server performance and provides a compliant facility for 
creating varied HTTP workloads and measuring server execution. 
JMeter – Use Apache JMeter to test execution both on static and dynamic resources (files, 
servlets, Perl scripts, Java objects, databases and queries, FTP servers, and more).
Google PageSpeed Insights – Google PageSpeed Insights, a setting that examines the 
content of a web page and produces recommendations to make your pages load faster. 
Reducing page load times lowers bounce rates and boosts conversion rates.
Google ngx_pagespeed  –  It speeds up your site and decreases page load time. This open-
source nginx server module automatically affects web performance best methods to pages 
and associated assets (CSS, JavaScript, images) without expecting you to change your actual 
content or workflow.
Google mod_pagespeed – It speeds up your site and decreases page load time. This open-
source Apache HTTP server module automatically connects web performance best methods 
to pages and associated assets (CSS, JavaScript, images) without asking that you modify 
your actual content or workflow.
WebPagetest.org  – It provides deep insights into the appearance of the client-side in a 
kind of real browsers. This efficiency will test a web page in any browser, from any place, 
over any network condition—and it’s free.