Unlimited load testing for everybody

We make it easy to load test pre and post production. Share an unlimited subscription between teams and/or pay-per-test when the need arises.
Monthly subscription Quarterly subscription - Save 15%
$0 forever
250 VUs
5 mins


$299 monthly
1,000 VUs
60 mins


10 % off pay-per-test credits
$699 monthly
Max Concurrent Users 3,000 VUs
Test Duration Unlimited
Tests per Month Unlimited
Max Server Metrics Agents


15 % off pay-per-test credits
$1299 monthly
8,000 VUs


20 % off pay-per-test credits
1,200,000 VUs



Set your test parameters below and only pay for what you need.
Adjust the sliders to the size and duration of your test
Max concurrent users
Click to edit
Test duration
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Common questions

QWhat are VUs and how many do I need? Virtual Users are the simulated clients we load onto your system. They load objects in parallel, just like a real browser would. To know how many you need for testing, apply this formula: concurrent_users = (peak hourly_visits * avg. visit_duration in seconds) / 3600. QDo my pay-per-test credits rollover month to month? Yes. Any unused test credits will rollover month to month. QWhat if my test aborts, do I get a refund? Yes, if the test was aborted by the system you will get a full refund. If the test was aborted by you, then you will get a partial refund depending on how early you abort. But we're flexible, so contact us if you would like us to honor a full refund request. This policy applies to pay-per-test credits only. QCan I get help with scripting, results analysis and integration? Yes. If you need any help at all with testing and/or results analysis, we encourage you to contact sales@loadimpact.com to receive a quote for our professional services. QDo you offer discounts for non-profit organizations? Yes, we do offer a significant discount for non-profit organizations. Simply write to sales@loadimpact.com with a description of your needs and we will be happy to oblige.
QWhat if I need to run a test that's beyond my subscription level? In this case, we encourage you to take advantage of the pay-per-test discounts included in your monthly subscription. This allows you to run larger tests whenever you want without having to upgrade your subscription. QCan I cancel my subscription at any time? Yes, you can stop your monthly subscription anytime you want. You will not be charged beyond the month you decide to cancel. QCan I downgrade/upgrade my subscription? Yes, you can downgrade or upgrade your subscription at any time. You can also hold two subscriptions simultaneously. But if you wish to change plans, please make sure to cancel the first one before purchasing the other. QCan I get a variable rate or customized plan? We offer variable rate subscriptions that allow you to run as many individual tests as you want - up to a certain load level. As your business grows, we'll automatically move you up to a higher load testing level. We can also create custom plans to match your test frequency and load volume needs. Please contact sales@loadimpact.com for a quote. QWhat is a Server Metrics Agent? We offer the option to install Server Metrics Agents on your target machines. This makes it possible to collect information like, CPU usage, memory usage, disk I/O, network I/O, during testing. You can also add other custom metrics using Nagios plugins.