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Cloud-based load testing for performance and scalability validation.

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Tracked since2026
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The Bottom Line

Entry price

Free plan available, paid tiers above

Biggest pro

Eliminates the need for managing test infrastructure

Biggest con

Requires familiarity with underlying testing tools (JMeter, Gatling, etc.)

TL;DR - Flood.io

  • Cloud-based load testing platform
  • Supports JMeter, Gatling, Selenium
  • Real-time analytics and reporting
Pricing: Free plan available
Best for: Growing teams

What is Flood.io?

Editorial review
Flood.io is a cloud-based load testing platform designed to help teams validate the performance and scalability of their applications. It allows users to run large-scale performance tests from various geographic locations without managing their own testing infrastructure. Flood.io supports popular open-source testing tools like JMeter, Gatling, and Selenium, enabling users to leverage existing test scripts. The platform provides real-time analytics and reporting, offering insights into application behavior under load. It's suitable for developers, QA engineers, and DevOps teams who need to ensure their applications can handle anticipated user traffic and identify performance bottlenecks before deployment. Flood.io aims to simplify the process of performance testing, making it accessible and scalable for projects of all sizes.

Pros & Cons

Pros

  • Eliminates the need for managing test infrastructure
  • Supports widely used open-source testing tools
  • Provides comprehensive real-time and historical reporting
  • Enables testing from multiple global locations
  • Scalable to handle very high user loads

Cons

  • Requires familiarity with underlying testing tools (JMeter, Gatling, etc.)
  • Can become costly for very high-volume or long-duration tests on paid tiers

Key Features

Cloud-based test executionSupport for open-source tools (JMeter, Gatling, Selenium)Real-time performance metricsGeographically distributed test agentsHistorical test data and reportingIntegration with CI/CD pipelines

Pricing

Freemium

Flood.io offers a generous free tier with optional paid upgrades for advanced features.

View pricing

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Flood.io FAQ

How does Flood.io support existing test scripts?

Flood.io supports popular open-source testing tools like JMeter, Gatling, and Selenium. This allows users to leverage their existing test scripts without needing to rewrite them for the platform.

Which teams benefit most from using Flood.io?

Flood.io is best suited for developers, QA engineers, and DevOps teams. These teams can use it to ensure their applications handle anticipated user traffic and to identify performance bottlenecks before deployment.

How is Flood.io priced?

Flood.io offers a free tier for basic usage. For more extensive usage and additional features, paid plans are available.

What kind of real-time insights does Flood.io provide?

Flood.io provides real-time analytics and reporting during load tests. These insights help users understand application behavior under various load conditions and identify performance issues promptly.

Can Flood.io help validate application performance for global users?

Yes, Flood.io enables users to run large-scale performance tests from various geographic locations. This capability helps validate application performance and scalability for a globally distributed user base.

Why might Flood.io be a better choice than Locust for some users?

Flood.io eliminates the need for managing test infrastructure, which can be a significant advantage over tools like Locust where users typically manage their own setup. Additionally, Flood.io supports multiple widely used open-source testing tools beyond just Python-based scripting.

What are the main trade-offs when using Flood.io?

A primary trade-off is that users need familiarity with underlying testing tools such as JMeter or Gatling to effectively use the platform. Also, costs can increase for very high-volume or long-duration tests on paid tiers.

Source: flood.io

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