AI-Powered Load Testing Software

Join thousands of companies of all sizes that use our performance testing software to deliver highly scalable applications.
Start Free
Book a Demo
rating icon
Based on reviews on
g2 badge 1
capterra badge
e71758f1 8447 4dbf ac34 26a8d3f43344
9ad64c1d c3dd 4552 9e64 1162c0bb8f32

Trusted by Leading Companies

-ribbon-0-ribbon-1-ribbon-2-ribbon-3-ribbon-4-ribbon-5-ribbon-6-ribbon-7-ribbon-8-ribbon-9-ribbon-10-ribbon-11-ribbon-12
-ribbon-0-ribbon-1-ribbon-2-ribbon-3-ribbon-4-ribbon-5-ribbon-6-ribbon-7-ribbon-8-ribbon-9-ribbon-10-ribbon-11-ribbon-12
-ribbon-0-ribbon-1-ribbon-2-ribbon-3-ribbon-4-ribbon-5-ribbon-6-ribbon-7-ribbon-8-ribbon-9-ribbon-10-ribbon-11-ribbon-12

Who Choose PFLB?

Our performance testing tool helps professionals across roles ensure peak performance and system reliability.

Performance
Engineers

Performance testing and optimizing web applications, APIs, and IT systems.

SREs

Ensure SLO compliance by identifying performance bottlenecks and optimizing system reliability under peak loads.

DevOps
Engineers

Integrate performance tests into CI/CD pipeline to ensure performance during deployments.

SaaS Founders

Ensure software has enough performance capacity to launch or scale.

Enterprise IT
System Managers

Minimize risks during IT system releases and change management events.

IT Operations

Reduce MTTR by simulating real traffic and swiftly identifying performance issues.

Your Load Testing Evolves

Сloud First | AI First

We build a professional tool for performance engineers focused on saving time and simplifying complex tasks throughout the process, from defining a strategy to presenting load testing results to executives and optimizing applications.
Start Testing Now
software performance testing company

Test Smarter
with Cloud Power

Save months on setting up and maintaining load testing infrastructure. Easily simulate a realistic load from over 20 global locations. Start from scratch or migrate your existing JMeter tests to PFLB with ease.
Start with Web Load Testing

See also

Automate Performance
Analysis with AI

Save weeks on performance analysis with PFLB AI, which detects anomalies instantly, flagging unusual performance data. Reduce reporting time to minutes with AI-crafted insights.
Start Testing Now

Repeat Load Testing
Continuously

Configure the PFLB API to run load tests directly from your DevOps pipeline at your own pace.
Start Testing Now

See also

Integrations with Your Favourite Tools

  1. Google Analytics

    Use real user data for precise load profiles.

  2. Grafana

    Clear and actionable test reports.

  3. Postman, Insomnia, JMeter

    Easy migration of existing test scenarios.

Utilize Our Professional Services

If you’d like to use PFLB for your business but don’t have performance testers on staff, no problem. Our professional services team is here to help.
Explore PFLB Professional Services

See also

Case Study

Ensuring a Storm Center Outage Map Software is Ready for Texan Storms
Learn how the largest electric power distribution company in the U.S. prepared for weather-related outages with load testing. They simulated 150,000 visitors on their website, reporting outages and checking real-time status updates.
Read full case

PFLB Client’s Review

Testimonials from satisfied clients across various industries.
demo testimonial 2
E-learning
client 2
client 2 position

I was highly satisfied working with PFLB. They're a fantastic one-stop shop for software performance, with everything you need—their platform and skilled engineers. I've used them three times to load test the College Board software before big updates, and it all went smoothly. Plus, I love that they store all the testing data, so we can track performance capacity over time.

demo testimonial 3
Oil & Gas
client 3
client 3 position

It was a pleasure working with PFLB, and I'd recommend them for performance testing. They quickly got up to speed with our complex software architecture and were super productive in setting up our load test environment in the cloud. They were really dedicated to improving our product with their strong expertise in performance optimization.

demo testimonial 4
E-learning
client 4
client 4 position

PFLB was willing to work with a very small solopreneur without an enormous investment in capital. Their prices were reasonable and provided me with notable improvements to my php performance.

demo testimonial 5
Software & Technology
client 5
client 5 position

PFLB did benchmarking tests on our database storage engine under standard and uncommon conditions, using specialized tools. Their analysis gave us valuable insights and recommendations to boost our product's performance. I highly recommend PFLB to anyone looking for an expert performance testing company.

demo testimonial 6
Software & Technology
client 6
client 6 position

We smoothly moved over 30 JMeter projects to PFLB, and it's been a total game changer. It's given our team of 50+ remote performance engineers the ability to handle large-scale load tests every day with real ease.

demo testimonial 7
Biotech
client 7
client 7 position

PFLB's testing team helped us successfully complete the FDA regulations with a great test coverage for the computer system validation (CSV) process at Illumina. I highly recommend Yuri Kovalov and his team—they're top-notch professionals in performance and load testing.

demo testimonial 8
Software & Technology
client 8
client 8 position

PFLB has been Tinder's load testing provider for over 5 years, and it is a true pleasure working with them. They managed the entire performance engineering process for our app releases, helping us fix tons of performance issues. I highly recommend PFLB as a reliable vendor.

clutch badge for reviews section

Why Choose PFLB?

With our highly scalable cloud load testing infrastructure and AI-driven performance insights, we also offer additional features to ensure your users have an exceptional experience.

User-Friendly

Our platform is intuitive and easy to set up, letting you focus on enhancing performance without hassle.

Comprehensive Support

Our dedicated team is with you every step of the way, offering help with setup, troubleshooting, and optimization. Reach out to us anytime at support@pflb.us

Detailed Documentation

We provide step-by-step guides to help you navigate and make the most out of our platform effortlessly.

Transparent Pricing for All Needs

Monthly
Annual

Free

Perfect plan for starters

0 $/Month

 

Sign up
  • 1 concurrent test
  • 10 users max
  • 15 minutes max test duration
  • Available test types: stable
  • 5 test runs total

Standard

For business who want to do more

50 $/Month

Save 15% with an annual plan

Start for free
  • 1 concurrent test
  • 200 users max
  • 60 minutes max test duration
  • Available test types: stable, scalability
  • 10 tests per month
  • Run your own JMeter tests
  • Run tests via API, integrate with github, gitlab and jenkins

Pro

Your entire team in one place

400 $/Month

Save 15% with an annual plan

Start for free
  • Multiple concurrent tests
  • 5000 users max per month*
  • 48 hours max test duration*
  • Available test types: stable, scalability
  • 1000 tests per month*
  • Run your own JMeter tests
  • Run tests via API, integrate with github, gitlab and jenkins
  • Test trending and comparison for app performance lifecycle
* 300 000 VUsers minutes

Enterprise

Run your company on your terms

Custom

Could be any price worth its value

Get in touch
  • Full business package
  • Unlimited users and duration
  • Custom tests
  • Professional services

Free

Perfect plan for starters

0 $/Year

 

Sign up
  • 1 concurrent test
  • 10 users max
  • 15 minutes max test duration
  • Available test types: stable
  • 5 test runs total

Standard

For business who want to do more

510 $/Year

Save 15% with an annual plan

Start for free
  • 1 concurrent test
  • 200 users max
  • 60 minutes max test duration
  • Available test types: stable, scalability
  • 10 tests per month
  • Run your own JMeter tests
  • Run tests via API, integrate with github, gitlab and jenkins

Pro

Your entire team in one place

4080 $/Year

Save 15% with an annual plan

Start for free
  • Multiple concurrent tests
  • 5000 users max per month*
  • 48 hours max test duration*
  • Available test types: stable, scalability
  • 1000 tests per month*
  • Run your own JMeter tests
  • Run tests via API, integrate with github, gitlab and jenkins
  • Test trending and comparison for app performance lifecycle
* 300 000 VUsers minutes

Enterprise

Run your company on your terms

Custom

Could be any price worth its value

Get in touch
  • Full business package
  • Unlimited users and duration
  • Custom tests
  • Professional services

Want to See PFLB in Action?

Book a Demo

FAQs

01How do I load test my website?

To load test your website with PFLB, follow these steps:

  1. Sign Up or Log In: Begin by signing up for an account or logging into your existing PFLB account.
  2. Choose Your Test Method: After logging in, you can either create a load test from scratch or select the “Run your own JMeter” option. If you choose to create a test from scratch, you’ll define your load testing scenarios by adding pages and specifying GET or POST requests one by one using the no-code script builder.
  3. Set User Load and Test Type: Determine the number of virtual users (VUs) you want to simulate during the test. Additionally, choose the type of load test you want to run—either a “stable” test to maintain a consistent number of VUs or a “scalability” test where the number of VUs gradually increases over time.
  4. Run the Test: Execute your test by starting it within the platform. PFLB will simulate the defined load on your website and monitor its performance under the specified conditions.
  5. Analyze the Results: Once the test is completed, review the performance metrics provided in the Grafana dashboards. These detailed insights will help you identify any performance bottlenecks and optimize your website for better traffic handling.

This process enables you to thoroughly evaluate your website’s readiness to handle real-world traffic loads.

02Can I Simulate Traffic from Different Geo Locations?

Yes, with PFLB, you can simulate traffic from different geographical locations. This allows you to test your API’s performance and latency across various regions, ensuring it can handle global traffic efficiently. Simply configure the load generator locations within the PFLB platform to distribute the load as needed.

03What Types of Website Load Testing Does PFLB Support?

As a load testing company, PFLB supports a variety of website load testing types to help you comprehensively assess your site’s performance under different conditions:

  1. Stable Load Testing: This test maintains a consistent number of virtual users (VUs) throughout the testing period, allowing you to evaluate how your website performs under a steady load.
  2. Scalability (Ramp-Up) Load Testing: In this test, the number of VUs gradually increases over time, helping you understand how your website scales as traffic grows and identifying at what point performance begins to degrade.
  3. Spike Load Testing: This test introduces sudden spikes in traffic to see how your website handles abrupt increases in load, which is crucial for understanding performance during unexpected traffic surges.
  4. Stress Testing: Our tool for load testing can push your website to its limits by increasing the load beyond normal operational capacity. This helps you identify the maximum load your site can handle before it starts to fail or degrade significantly.
  5. Custom Load Testing: PFLB load tester tool allows you to create highly customized load testing scenarios tailored to your specific needs, combining different types of load patterns and virtual user behaviors.

These diverse testing options provide you with a comprehensive understanding of your website’s performance, ensuring it’s well-prepared for real-world traffic conditions.

04Can I Run My Existing JMeter Load Tests on PFLB’s Cloud?

Yes, you can easily run your existing JMeter load tests on PFLB’s cloud. Simply upload your JMX files to PFLB load test software, configure the test settings as needed, and execute the test across our distributed cloud infrastructure. This enables you to run large-scale tests without the need for extensive local resources, providing you with detailed insights into your website’s performance under various load conditions.

Dive in Our Knowledge Base

Blog 6 min read
How Does Website Speed Impacts Conversion Rates?
September 4, 2023
A mere 3-second delay in website loading can cause 53% of visitors to leave. Slow-loading sites cost retail businesses a staggering $2.6 billion yearly. Even a tiny 100ms delay can...
Blog 13 min read
How to Speed Up a WordPress Site
February 17, 2025
We have a lot of experience in the field of web performance optimization, so we would like to share with you our best practices for solving such problems. In this part of the article,...
Cases 8 min read
How Load Testing Helped Texans Survive Power Outages During a Storm
June 13, 2024
Background The largest electric distribution cooperative in Texas and the United States, Pedernales Electric Cooperative (PEC), had to test its new software systems, the Storm Center...

Ready to Get Started?

Create an account instantly to get started, or contact us to design a custom package for your business.

Start Testing Now
Contact Sales