Monsoon runs

load tests for your

single page application.

Monsoon is an open-source, serverless framework for running browser-based load tests in the cloud.

Say hello to smart
load testing 👋

Monsoon can simulate loads of up to 20,000 concurrent users, and tests can be of any duration, from minutes to hours or longer. Users can also see their load test results visualized in a near real-time dashboard.

Run tests in the cloud

Monsoon deploys into your AWS account allowing you to simulate real user-traffic in your SPA with up to 20,000 Chrome instances.

Easy scripting

Forget about API endpoints. Write your load testing script using Puppeteer.

No platform fees

You only pay the AWS charges stemming from the infrastructure spun up to run your test.


Use Monsoon’s dashboard to get insights about the performance of your SPA in near real-time.