Testable is a modern distributed load testing platform. Define a test with a variety of open-source tools and let Testable handle the scaling, reporting, and analytics. Supports JMeter, Gatling, Locust, Node.js (including HTTP, websockets, Socket.io, and Engine.io), Webdriver.io, Selenium, Puppeteer, Serenity BDD, PhantomJS, SlimerJS, record-and-replay, and HAR files. Start up test runners VMs in your own Azure account and register them with Testable cloud so that they can execute your distributed load tests. Use Testable Cloud as your control plane and assign tests to generate load from your Azure VM based grid. Let Testable handle coordinating test execution, aggregating results, performing trend analysis, and providing beautiful test reports in real-time. See a simple summary of your test results as well as a rich analysis view for drilling down to spot performance issues. Want to know how many concurrent users your environment can handle? Define your performance requirements and we can automatically scale, detect and alert on the number of concurrent users that meet those performance requirements. Even track how that number changes across test runs like any other metric. Define your own success criteria and get alerted when a test fails to meet them. Results can be shared and customized to provide different views for different stakeholders. We also integrate with leading monitoring and CI tools to seamlessly integrate load testing and monitoring into your software development lifecycle.