Loader.io

7.0easy start · #11 of 34
in Performance Testing Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on api, Web. Paid plans from $99.95/mo.

Loader.io is ranked #11 of 34 in performance testing software on The Geeks Club. It runs on API, Web. There is a free plan. Paid plans start at $99.95/mo.

Loader.io plans and pricing

All plans

Free Free $0.00 / mo 10,000 clients / test · 1 target host · 1 min tests · 2 urls per test loader.io · 4 Oct 2026

Pro $99.95/mo $99.95 / mo 100,000 clients / test · unlimited target hosts · unlimited 10 min tests · 10 urls per test · advanced analytics · concurrent tests · DNS Verification · team features · priority loaders · priority support loader.io · 4 Oct 2026

Compared on performance testing software

Free plan: Yes
Paid from: $99.95/mo
Load testing: Yes
Stress testing: Yes
Distributed load: Yes
API testing: Yes
Deployment model: cloud
Max virtual users: 100,000 users

Best Loader.io alternatives

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The record

Purpose: Loader.io is a cloud-based load testing service for stress testing web apps and APIs with thousands of concurrent connections.
Test workflow: Users can register a target through the web interface or API, run a test, and monitor it in real time.
Test types: The API supports per-test, per-second, and maintain-load test types.
Test configuration: Tests can include a sequence of URLs, a duration, client counts, timeouts, error thresholds, scheduled start times, and completion callbacks.
Results: The results API provides summaries including successes, errors, timeouts, network errors, data transferred, average response time, and average error rate.
Verification: Loader.io requires target hosts to pass automated verification before tests, to help prevent using the service to attack sites without their consent.
Host limit: Each unique hostname must be added and verified independently.
Test location: The pricing FAQ says tests currently run from Amazon’s US-east datacenter.
Integrations: The Help Desk lists webhooks, TravisCI, CircleCI, Jenkins, TeamCity, GitHub Service Hooks, New Relic, and HipChat integrations.
Webhook automation: A test-specific run webhook can trigger a test with a POST request, and a notification webhook can receive a POST when a test completes.
New Relic: Loader.io can send test results to New Relic Insights in real time and to New Relic, whose dashboard updates at a stated limit of once per minute.
Security: The maker says load generator IP addresses can change between tests and provides an API endpoint for retrieving the current addresses for allow-listing.
Support: The pricing FAQ directs users to [email protected] for questions and says paid plans include priority support.
Price from: $99.95/mo

Where it ranks on The Geeks Club

Best Performance Testing Software in 2026#11 of 34

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Sources

loader.io· checked 4 Oct 2026
loader.io/docs/v2/· checked 4 Oct 2026
loader.io/blog/howto/target-host-verification/· checked 4 Oct 2026
loader.io/pricing· checked 4 Oct 2026
support.loader.io/category/12-integrations· checked 4 Oct 2026
support.loader.io/article/23-webhook· checked 4 Oct 2026
support.loader.io/article/76-new-relic-insights· checked 4 Oct 2026