Loader
Loader.io is a free load testing service that allows you to stress test your web-apps & apis with thousands of concurrent connections.
Similar Tools
WebLOAD – Performance and Load Testing for the Most Challenging Web Applications
Simplifies performance and load testing so that application delivery teams can take a standardized approach to ensure continuous performance, reliability, and scalability from development to production.
Comprehensive and user-friendly cloud platform for Load Testing, Speed Testing and Website & API Optimization and Monitoring
Orderly Ape is an open source (MIT) tool to run distributed and scalable k6 load tests on your own infrastructure using k6, kubernetes, grafana and influxdb.
The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.
Anyone on your team can load test with instant playback, an easy-to-use interface, and real browsers for reliable data.
With servers in >250 cities around the world, check your site for localization problenms, broken GDPR banners, etc.
Create E2E tests visually. Get clear, readable YAML you can actually maintain.
Kick off 2026 with an honest look at where AI really helps software testing teams.
Create, run, and maintain web and mobile tests with no-code, AI-driven automation in the cloud