WPLoadTester 7

Inside WPLoadTester 7.

The detailed view. Pricing breakeven math, the AI Assistant up close, the MCP server for engineers, side-by-side comparisons to LoadRunner / k6 / JMeter, and the full capability inventory.

Our 1999-vintage unique feature

How many users can your site actually handle?

Most load tests run a fixed number of users and tell you the response time. User Capacity Analysis finds the inflection point — the moment your site stops meeting your SLA. Use our defaults, or define your own performance goals.

WPLoadTester Load Test Analytics, Estimated Capacity tab. Performance goals: 3-second duration threshold, 1% error threshold. Minimum and maximum capacity both pinned at 2,050 users (1,103 ms avg duration, all goals passed). Capacity exceeded at 2,250 users (3,223 ms, goals failed). The response-time-and-error-rate chart shows both metrics staying flat through ~2,050 users, then inflecting sharply upward together.
Real test run. The site holds steady through 2,050 users; both response time and error rate inflect upward together. That inflection point — not the size of the test you ran — is the number you actually need.

Read the methodology

AI that shows its work

AI that really gets work done.

Every recommendation is explained before it’s applied. The assistant tells you what it’s about to do, you accept or correct, then it does it.

TaskWithout AI AssistantWith AI Assistant
Configuring a complex test (scenario, parameterization, correlation)6 hours of recording and manual correlation~1 hour, AI explains each move
Writing the bottleneck report6–8 hours to author from scratch~1 hour to review and edit AI output

Times based on real engagements. Your mileage will vary by application complexity and test scope.

How the AI Assistant works

Bring Your Own Cloud

Per-VU-hour SaaS bills compound. A flat license doesn’t.

Run a 10,000-user test about seven times a year and the flat license has paid for itself. Run weekly and per-VU-hour SaaS bills clear $78,000 while ours stays under $9,700.

10,000-VU × 1h tests per year SaaS @ $0.15/VU-hr WPLoadTester Cloud (license + EC2) You save
12 (monthly)$18,000$9,500 + $24 = $9,524$8,476 · 47%
26 (biweekly)$39,000$9,500 + $52 = $9,552$29,448 · 76%
52 (weekly)$78,000$9,500 + $104 = $9,604$68,396 · 88%

Annual lease (10,000 VU) from our published pricing. SaaS rate is the published per-VU-hour at OpenText Core Performance Engineering, Grafana Cloud k6 Pro, and Azure Load Testing’s first 10,000 VU-hour tier (~$0.15). EC2 on m5.large × $0.096/hr in us-east-1 (April 2026). Reserved/Spot make it cheaper.

Full math, all tier sizes

Two front doors

Performance testing for teams without performance teams.

AI Assistant GUI

For non-technical testers. Chat with the assistant inside the WPLoadTester GUI. It records the scenario, configures the test, and writes the report.

> What is causing the checkout error in my test case?

AI Assistant

MCP Server CLI / Agentic

For engineers. WPLoadTester 7 exposes its test cases, results, and AI workflow as a Model Context Protocol server. Point Claude Code, Cursor, or any MCP-compatible agent at it.

claude> analyze the root cause of the 504 errors from the app server when the load goes over 10,000 users

MCP server

Everything else, in one place.

Try WPLoadTester 7 in your own cloud, on your own AI keys.

Free single-machine edition. Cloud beta open.

Software

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