Loader.io runs short-lived HTTP load tests from the cloud and provides basic result charts. It is designed for quick endpoint and application checks.
About
Loader.io is a cloud-based load testing service that enables users to stress test web applications and APIs by simulating thousands of concurrent connections. It provides both a web interface and an API for registering and running tests.
Features
- Cloud-based load testing
- Stress test web apps and APIs with thousands of concurrent connections
- Real-time monitoring and results sharing
- Web interface and API for test management
- Advanced analytics (paid plans) including response time and bandwidth histograms
- Concurrent tests (paid plans)
- DNS Verification (paid plans)
- Team features (paid plans)
Pricing
Loader.io offers a free plan and a Pro subscription plan starting at $99.95/month. Add-ons are available for extending test duration at $25 per 10-minute increment. Pro plans are billed month-to-month.
Author / Company
SendGrid, Inc.
Sources
GROUNDED VIA EXA · 2026-08-11