The choice between k6 and JMeter depends on various factors and specific use cases. Here are some points to consider: Scripting Language: k6 uses JavaScript, a widely-used language with a large developer community. JMeter uses its scripting language called JMeter Scripting Language (JSL), or it can also be scripted in Java. If you are already proficient in JavaScript, k6 may be more intuitive for you. Performance and Scalability: k6 is known for its performance and scalability. It is built on a modern and lightweight architecture, allowing it to handle many concurrent users efficiently. JMeter, on the other hand, may require more resources for large-scale testing due to its Java-based architecture. Ease of Use: k6 is designed to be developer-friendly, with a focus on simplicity and ease of use. It offers a clear and intuitive syntax, making it easier for developers to write and maintain test scripts. JMeter has a steeper learning curve and may require more effort to set up and configure, especially for complex scenarios. Ultimately, the choice between k6 and JMeter depends on your specific requirements, familiarity with scripting languages, and the type of testing you need to perform. It can be helpful to evaluate both tools based on your specific use case and consider factors such as scripting language preference, performance needs, ease of use, and available community support.