1. Apache JMeter

Apache JMeter is a powerful tool for testing the performance of web applications. It allows you to create test plans, simulate load on the server, and analyze test results. Apache JMeter supports various protocols, including HTTP, HTTPS, FTP, JDBC, and more.

2. LoadRunner

LoadRunner is a commercial performance testing solution from Micro Focus. It has extensive capabilities for modeling real-world application load, including virtual users, transactions, and more.

3. Selenium

Selenium is a popular tool for automating web application testing. It can also be used for performance testing, for example, by implementing scripts to check web page response times.

4. Gatling

Gatling is a performance testing tool written in Scala. It allows you to create load testing scenarios using a friendly DSL and analyze results using graphs.

5. WebLOAD

WebLOAD is another commercial solution for testing the performance of web applications. It has a wide range of features, including recording and playing back test scenarios, monitoring load, and analyzing results.

6. Apache Bench

Apache Bench is a simple command-line tool that is part of the Apache HTTP Server package. It allows you to send requests to the server and measure the performance of web applications.

7. Locust

Locust is a performance testing tool written in Python. It allows you to create load testing scenarios using code and scale the load on the server.

8. IBM Rational Performance Tester

IBM Rational Performance Tester is a commercial performance testing solution from IBM. It has extensive capabilities for creating and running tests, monitoring performance, and analyzing results.

9. BlazeMeter

BlazeMeter is a cloud-based performance testing service that allows you to create and run load tests on web applications. It also provides detailed reporting on test results.

10. Silk Performer

Silk Performer is a commercial performance testing solution from Micro Focus. It has extensive capabilities for modeling real-world application load, including support for various communication protocols.

11. NeoLoad

NeoLoad is a performance testing tool that allows you to create and run load tests on web applications. It has an intuitive interface and extensive features for analyzing results.

12. Apache JMeter Plugin for Response Times Over Time

Apache JMeter Plugin for Response Times Over Time is a plugin for Apache JMeter that allows you to analyze the dynamics of web application response times over time. It helps identify performance issues and optimize web server performance.

13. LoadNinja

LoadNinja is a cloud-based solution for testing the performance of web applications. It allows you to create test scenarios, simulate load, and analyze test results in real time.

14. Grinder

Grinder is a performance testing tool written in Java. It has the ability to create load testing scenarios using Python and run them on the server.

15. Rational Performance Tester

Rational Performance Tester is an integrated solution for testing the performance of web applications from IBM. It has extensive capabilities for creating test plans, emulating user activity, and analyzing test results.