Dynatrace Load - Dynatrace Load lets you test the performance of web and mobile applications with the realism of load generation from the cloud.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Apache JMeter - Apache JMeter™.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Sitespeed - Sitespeed.io is an open source tool that helps to analyze and optimize website speed and performance.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.