Best load-testing tools

A visual and code-based automation tool for functional web and desktop testing, with API and load features in the Ultimate edition.

Define API load scenarios and Playwright end-to-end runs, then analyze their reports in Artillery Cloud.

Plan and run scripted performance tests with RadView's WebLOAD dashboard and cloud or self-managed load generators.

Model performance scenarios for applications and APIs, generate virtual-user load and analyze run results.

Write load-test scenarios as code and control the request rate sent to an application.

A Java-based load-testing application for exercising services and analyzing their performance under simulated traffic.

A Python load-testing framework that models user behavior in code and scales traffic across workers.

Write JavaScript load tests and run them locally or send performance tests to Grafana Cloud.

Record and run realistic web and API load tests in real browsers, then review user-facing timings.

Run cloud performance tests for web applications and APIs from scripts you supply.

Load test websites, applications, and APIs with scripted browser or protocol bots, then inspect performance reports.

Benchmark DNS latency and query-serving capacity