{"id":16092,"date":"2018-03-19T20:40:30","date_gmt":"2018-03-20T01:40:30","guid":{"rendered":"https:\/\/www.dotcom-tools.com\/blog\/?p=16092"},"modified":"2025-12-21T16:36:53","modified_gmt":"2025-12-21T22:36:53","slug":"open-source-performance-testing-tools","status":"publish","type":"post","link":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/","title":{"rendered":"Top 5 Open Source Performance Testing Tools"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text]
\n\"performance<\/p>\n

Top 5 Open Source Performance Testing Tools<\/h1>\n

There are many open source web application performance testing<\/a> tools available on the market today. Deciding on which tool is right for you depends on several factors, such as what programming languages you\u2019re familiar with, your specific project needs, skills, etc.
\nSince there aren\u2019t any licensing costs associated with open source tools, they\u2019re ideal for saving money on the front-end. Additionally, if you\u2019re looking to integrate your own extensions or plug-ins, an open source tool might be right for you. However, keep in mind that commercially available tools, such as LoadView, tend to be easier to set up and typically offer more robust features.<\/p>\n

Apache JMeter<\/h2>\n

JMeter is one of the more popular open source performance testing tools. It can record test scripts using point and click functionality and validates the scripts before running a stress test<\/a>. JMeter also includes BeanShell and Groovy, built-in components that extend dynamic Java syntax scripting languages.
\nWhile other open source load testing solutions are designed to only test a few types if functionality, JMeter can load test a wide variety of protocols. This includes HTTP\/S, PHP, SOAP\/REST, JDBC, MOM via JMS, SMTP(S), POP3(S), IMAP(S), LDAP, and Java Objects.<\/p>\n

Locust<\/h3>\n

Locust is a load testing tool based on the Python programming language. As the name suggests, Locust creates a swarm of concurrent virtual users \u2013 into the thousands \u2013 to understand how many users your site can handle. This solution was created to load test websites, but you can use it to test any system that can be tested with Python, which means you need to have a working knowledge of Python to write test scripts in Locust.
\nEven if you use a web hosting company, Locust is beneficial. It\u2019s a lot easier to justify upgrading your hosting plan or switching to a new host if you can identify and quantify performance issues.<\/p>\n

Taurus<\/h3>\n

Unlike other open source tools that are limited to the HTTP\/S protocol, Taurus is a framework that can run various open source load and functional testing tools. Test scripts are written in YAML or JSON, which allows developers to create scripts in other applications, including JMeter, Grinder, or Gatling.
\nTaurus can be used at any stage of development, able to run complex scenarios and generate interactive reports, so it may be the only tool you need.<\/p>\n

Sitespeed.io<\/h4>\n

Sitespeed.io is a collection of open source tools (Selenium, VisualMetrics, PerfCascade, Skeleton, Simple crawler, Pug, and more) used measure and monitor site performance. Ideally, you want your site to load faster than your competitors\u2019 sites \u2013 sitespeed.io lets you find out for sure. It will load test a single site, but you can also test and compare multiple sites at once.
\nSitespeed.io also analyzes your web pages and makes suggestions for changes you can make to allow those pages to load more quickly. It supports Firefox, Chrome, and Chrome on Android.<\/p>\n

The Grinder\"open<\/h4>\n

The Grinder is a Java-based load testing framework that can perform load tests on any system with a Java API. The default scripting language is Jython, but scripts can also be written in Clojure, which, like Locust, means you need advanced knowledge of those scripting languages.
\nThe Grinder works on any hardware platform or OS that supports J2SE 1.4 and above and supports all of the following protocols: HTTP\/S, SOAP, XML-RPC, JDBC, IIOP, RMI\/IIOP, RMI\/JRMP, JMS, POP3, SMTP, FTP, and LDAP.<\/p>\n

Conclusion<\/h5>\n

There\u2019s a wide array of choices when it comes to selecting an open source tools for performance testing. Building and managing your own performance testing tool may not be the best route, especially if you don\u2019t have the working knowledge of specific programming languages. Furthermore, one item that is often ignored when choosing an open source tool is support. As with many open-source tools, you are dependent on groups for troubleshooting issues, and there is typically no direct line to a technical support team.
\nIn situations where it will require additional development and engineering resources, it might be best, and more cost-effective, to consider commercially available load testing tools<\/a>, such as LoadView from Dotcom-Monitor. Dotcom-Monitor has a technical support team available should you encounter issues, along with an in-depth support forum, knowledge base articles, and videos.<\/p>\n

Bonus Tool Comparison<\/h5>\n

Check out\u00a0Application Monitoring Tools Compared<\/a>, to help discover the right tools to keep you and your web visitors happy.<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_cta h2=”Try LoadView Now” h4=”Free for 30 Days” txt_align=”center” color=”white” add_button=”bottom” btn_title=”Get Started” btn_color=”green” btn_align=”center” btn_link=”url:https%3A%2F%2Fwww.dotcom-monitor.com%2Fsignup-lv-d1%2F%3FsolutionType%3DStressTesting||target:%20_blank|” css=”.vc_custom_1536965396156{background-color: #0fa0a8 !important;}”][\/vc_cta][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n

This open source tools list was last updated September 14, 2018.<\/em><\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"

Open source testing tools are more than adequate and can help you grow your company to the point that you can afford to pay for bells and whistles.<\/p>\n","protected":false},"author":2,"featured_media":16810,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[36,40],"tags":[88,89,64,42,69,67,62],"yoast_head":"\r\nOpen Source Performance Testing Tools - Top 5 Tools in 2026<\/title>\r\n<meta name=\"description\" content=\"With no licensing costs, open source performance testing tools can integrate your own extensions or plug-ins. Find the right tool here.\" \/>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Top 5 Open Source Performance Testing Tools\" \/>\r\n<meta property=\"og:description\" content=\"With no licensing costs, open source performance testing tools can integrate your own extensions or plug-ins. Find the right tool here.\" \/>\r\n<meta property=\"og:url\" content=\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/\" \/>\r\n<meta property=\"og:site_name\" content=\"Dotcom-Monitor Tools Blog\" \/>\r\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/dotcommonitor\" \/>\r\n<meta property=\"article:published_time\" content=\"2018-03-20T01:40:30+00:00\" \/>\r\n<meta property=\"article:modified_time\" content=\"2025-12-21T22:36:53+00:00\" \/>\r\n<meta property=\"og:image\" content=\"https:\/\/www.dotcom-tools.com\/web-performance\/wp-content\/uploads\/2018\/03\/performance-testing-tools.jpg\" \/>\r\n\t<meta property=\"og:image:width\" content=\"900\" \/>\r\n\t<meta property=\"og:image:height\" content=\"400\" \/>\r\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\r\n<meta name=\"twitter:card\" content=\"summary\" \/>\r\n<meta name=\"twitter:creator\" content=\"@dotcom_monitor\" \/>\r\n<meta name=\"twitter:site\" content=\"@dotcom_monitor\" \/>\r\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dan Oksnavad\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\r\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/#website\",\"url\":\"https:\/\/www.dotcom-tools.com\/web-performance\/\",\"name\":\"Dotcom-Monitor Tools Blog\",\"description\":\"Let's Make the Web a Faster Place.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.dotcom-tools.com\/web-performance\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#primaryimage\",\"url\":\"https:\/\/www.dotcom-tools.com\/web-performance\/wp-content\/uploads\/2018\/03\/performance-testing-tools.jpg\",\"contentUrl\":\"https:\/\/www.dotcom-tools.com\/web-performance\/wp-content\/uploads\/2018\/03\/performance-testing-tools.jpg\",\"width\":900,\"height\":400,\"caption\":\"performance testing tools\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#webpage\",\"url\":\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/\",\"name\":\"Open Source Performance Testing Tools - Top 5 Tools in 2026\",\"isPartOf\":{\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#primaryimage\"},\"datePublished\":\"2018-03-20T01:40:30+00:00\",\"dateModified\":\"2025-12-21T22:36:53+00:00\",\"author\":{\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/#\/schema\/person\/5746e140a1ac16b1dacec9bb543da006\"},\"description\":\"With no licensing costs, open source performance testing tools can integrate your own extensions or plug-ins. Find the right tool here.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.dotcom-tools.com\/web-performance\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Top 5 Open Source Performance Testing Tools\"}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/#\/schema\/person\/5746e140a1ac16b1dacec9bb543da006\",\"name\":\"Dan Oksnavad\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.dotcom-tools.com\/web-performance\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/6381632e291b5aaea545fc4e18299b12?s=96&d=retro&r=pg\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/6381632e291b5aaea545fc4e18299b12?s=96&d=retro&r=pg\",\"caption\":\"Dan Oksnavad\"},\"url\":\"https:\/\/www.dotcom-tools.com\/web-performance\/author\/oksnavadd\/\"}]}<\/script>\r\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Open Source Performance Testing Tools - Top 5 Tools in 2026","description":"With no licensing costs, open source performance testing tools can integrate your own extensions or plug-ins. Find the right tool here.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/","og_locale":"en_US","og_type":"article","og_title":"Top 5 Open Source Performance Testing Tools","og_description":"With no licensing costs, open source performance testing tools can integrate your own extensions or plug-ins. Find the right tool here.","og_url":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/","og_site_name":"Dotcom-Monitor Tools Blog","article_publisher":"https:\/\/www.facebook.com\/dotcommonitor","article_published_time":"2018-03-20T01:40:30+00:00","article_modified_time":"2025-12-21T22:36:53+00:00","og_image":[{"width":900,"height":400,"url":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-content\/uploads\/2018\/03\/performance-testing-tools.jpg","type":"image\/jpeg"}],"twitter_card":"summary","twitter_creator":"@dotcom_monitor","twitter_site":"@dotcom_monitor","twitter_misc":{"Written by":"Dan Oksnavad","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebSite","@id":"https:\/\/www.dotcom-tools.com\/web-performance\/#website","url":"https:\/\/www.dotcom-tools.com\/web-performance\/","name":"Dotcom-Monitor Tools Blog","description":"Let's Make the Web a Faster Place.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.dotcom-tools.com\/web-performance\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#primaryimage","url":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-content\/uploads\/2018\/03\/performance-testing-tools.jpg","contentUrl":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-content\/uploads\/2018\/03\/performance-testing-tools.jpg","width":900,"height":400,"caption":"performance testing tools"},{"@type":"WebPage","@id":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#webpage","url":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/","name":"Open Source Performance Testing Tools - Top 5 Tools in 2026","isPartOf":{"@id":"https:\/\/www.dotcom-tools.com\/web-performance\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#primaryimage"},"datePublished":"2018-03-20T01:40:30+00:00","dateModified":"2025-12-21T22:36:53+00:00","author":{"@id":"https:\/\/www.dotcom-tools.com\/web-performance\/#\/schema\/person\/5746e140a1ac16b1dacec9bb543da006"},"description":"With no licensing costs, open source performance testing tools can integrate your own extensions or plug-ins. Find the right tool here.","breadcrumb":{"@id":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.dotcom-tools.com\/web-performance\/open-source-performance-testing-tools\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.dotcom-tools.com\/web-performance\/"},{"@type":"ListItem","position":2,"name":"Top 5 Open Source Performance Testing Tools"}]},{"@type":"Person","@id":"https:\/\/www.dotcom-tools.com\/web-performance\/#\/schema\/person\/5746e140a1ac16b1dacec9bb543da006","name":"Dan Oksnavad","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.dotcom-tools.com\/web-performance\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/6381632e291b5aaea545fc4e18299b12?s=96&d=retro&r=pg","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6381632e291b5aaea545fc4e18299b12?s=96&d=retro&r=pg","caption":"Dan Oksnavad"},"url":"https:\/\/www.dotcom-tools.com\/web-performance\/author\/oksnavadd\/"}]}},"_links":{"self":[{"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/posts\/16092"}],"collection":[{"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/comments?post=16092"}],"version-history":[{"count":10,"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/posts\/16092\/revisions"}],"predecessor-version":[{"id":17966,"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/posts\/16092\/revisions\/17966"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/media\/16810"}],"wp:attachment":[{"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/media?parent=16092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/categories?post=16092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dotcom-tools.com\/web-performance\/wp-json\/wp\/v2\/tags?post=16092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}