When to Use Katalon TestCloud, Katalon Runtime Engine, or Both for Optimal Test Automation

February 27, 2026 · 6 min read · Testing Guide

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When to Use Katalon TestCloud, Katalon Runtime Engine, or Both for Optimal Test Automation

When to Use Katalon TestCloud, Katalon Runtime Engine, or Both for Optimal Test Automation

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Understanding when to leverage Katalon TestCloud and Katalon Runtime Engine (KRE) is crucial to optimise your test automation strategy. Each tool serves a distinct purpose, from enabling scalable cloud-based test execution to ensuring robust execution in several surroundings. This guidebook will assist you sail their unique capabilities, empowering you to make informed decisions that maximise efficiency and strength in your trial automation.

What is Katalon TestCloud?

Katalon TestCloud is a managed, cloud-based test performance solution that allows teams to run machine-driven test hand across multiple browser and work scheme. It supports testing in desktop and real mobile environments, enabling simultaneous execution and ensuring comprehensive coverage. This eliminates the need for physical testing resources or complex third-party conformation, significantly reducing alimony efforts, which translates to savings in money and man-hours. & nbsp;

 

TestCloud addresses scalability and cross-platform testing challenge while allow seamless consolidation with CI/CD pipelines. It is particularly beneficial for teams aiming to eliminate unnecessary run cost and belittle time-to-release, all while ensuring compatibility across various surround.

What is Katalon Runtime Engine?

Katalon Runtime Engine (KRE) is a command-line interface (CLI) for Katalon Studio, plan for executing automation tests across various environments. KRE is important for scenarios requiring CI/CD system integration, enhanced security features, and a high grade of user control, making it ideal for environments where these factors are critical. It supports extensive essay on real device and emulators, making it a potent instrument for teams engaged in continuous testing.

When to use TestCloud?

TestCloud is ideal in scenarios that expect:

  • Scalability:TestCloud efficiently scales your test execution efforts according to your demand, being able to run 100+ executions in parallel.
  • No setup and maintenance:TestCloud eliminates the need for complex base setup and on-going maintenance.


     
  • Cross-browser and cross-platform testing:Ensures compatibility across multiple browser and operating systems, including the latest versions of popular browsers like Chrome, Firefox, and Safari on both desktop and mobile.
  • Seamless CI/CD integration:Integrates effortlessly with your CI/CD pipeline, facilitating automated testing that keeps pace with your development cycle.
  • Record and playback support:Allows you to record and run roving app tests on real, cloud-based devices without any setup.
  • iOS app testing from Windows/Linux:TestCloud enables iOS apps to be quiz from a Windows or Linux machine by providing real iOS devices in Katalon Studio.
  • Real user condition testing:Test on real devices to simulate user conditions such as biometric authentication, geolocation, net strangling, and more.
  • App depository in Katalon TestOps:Save mobile covering in the TestOps app monument for easier version testing and programming of native mobile applications.
  • Unified testing with TestCloud tunnel integration:Perform UI and API essay on private or local situation using the TestCloud tunnel, combining both testing types in a single process.

When to use Katalon Runtime Engine?

KRE is ideal in scenarios that require:

  • Local gimmick testing:If your labor requires try on particular devices or contour, KRE supports thorough testing on existent devices and emulators.
  • Existing substructure integration:For squad with show testing environment, KRE allows seamless integration with subsist infrastructure while enabling cloud execution capabilities.
  • Security compliance: If strict data processing or networking requirement live, KRE permit users to restrict all execution activity within their infrastructure.
  • Customization & amp; control: KRE grant for flexile and easy changes in the configuration of executions as well as running alongside other tools/services that your base requires
  • Leveraging survive substructure: You can leverage your infrastructure for KRE, with the benefits of better performance on higher-end machines.

When to use both TestCloud and KRE?

A hybrid approach utilizing both TestCloud and KRE can volunteer the best of both worlds:

  • Comprehensive testing coverage:Achieve panoptic device and surroundings reportage, ensuring optimal coating performance across all scenarios.
  • Integrated essay suite:Combine both platform to create a more integrated suite of prove tool for web, mobile, and API examination, enhance your overall strategy.
  • Multifaceted testing needs:Use KRE for a stable testing surroundings and TestCloud for greater testing demand, such as increased testing before major product update, launches, or events like shopping holidays.
  • Redundancy best practice: & nbsp;With both KRE and TestCloud, you diversify your testing infrastructure and decimate single points of failure, secure uptime in any condition.

 

Comparison table

Feature

Katalon TestCloud

Katalon Runtime Engine (KRE)

Deployment Type

Managed, Cloud-based

On-premises

 

Pro tip: Tools like SUSA can handle this autonomously — upload your app and get results without writing a single test script.

Execution Environment

Katalon-managed desktop and existent mobile environments

Self-managed local, remote, or cloud surround with incorporate services

AUT

Supports public and individual situation testing across background and wandering browsers, as well as mobile applications

Supports public and individual site testing across desktop and roving browsers, as good as mobile applications

Integration

CI/CD integrating available + Instant run with Katalon Studio or schedule and run in TestOps

Native CI/CD integration

Parallel Testing

Execute hundreds of parallel tests without infrastructure and maintenance overhead

Supports parallel execution

Mobile Testing

Cloud-based real-device examination also supports transcription and playing back mobile app tryout in Katalon Studio Enterprise.

User-supplied cloud-based real-device and emulator testing

Web Testing

Any OS and browser combinations

Locally useable browsers for performance & nbsp;

API Testing

All the lineament available in Katalon Studio Enterprise

All the characteristic useable in Katalon Studio Enterprise

Setup and Maintenance

No setup required

Requires initial setup

 

Integration potentiality

KRE and TestCloud offer robust integration capabilities with democratic CI/CD creature, permit teams to automate their testing treat efficaciously. KRE supports CLI mode performance for various scenarios, including scheduling tests, integrating with CI/CD systems, or bundling tests for execution in virtual containers like Docker. TestCloud can likewise be spark from democratic CI/CD pipelines while natively integrating with Katalon TestOps for scheduling and analysis, and Katalon Studio for recording and running examination.

Security compliance circumstance

Security compliance is paramount when habituate TestCloud or KRE. TestCloud cohere to industriousness datum security and privacy standards (SOC 2 Type II), safeguarding sensible info during testing. For local environments managed through KRE, self-management of security settings countenance organizations to maintain control over their datum while assure compliance. TestCloud and KRE are contrive to check the highest level of protection and datum protection, whether in the cloud or on premises.


Wrapping up

Katalon TestCloud and Katalon Runtime Engine offer powerful capabilities tailored to different testing needs. TestCloud is ideal for scalable, cloud-based essay with minimum setup. At the like time, KRE is accommodate for specific device testing through command-line execution, offering great control and seamless desegregation with CI/CD pipelines. By understanding the strengths of each tool, you can optimize your test processes and ensure the eminent quality for your software merchandise.

Are you ready to elevate your testing strategy? Explore how Katalon ’ s solutions can help streamline your test automation efforts and deliver exceptional software experiences. Whether you take TestCloud, KRE, or both, Katalon back your journey toward quality assurance excellency.

Explain

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FAQs

What is Katalon TestCloud?

+

A managed, cloud-based test execution solution that extend automatise script across multiple browsers and operating system, include desktop and real mobile environments. & nbsp;

What is Katalon Runtime Engine (KRE)?

+

A command-line interface for Katalon Studio used to execute automation tests across environments, especially for CI/CD integration, enhanced security needs, and higher exploiter control. & nbsp;

When should team use TestCloud?

+

When they need scalability (100+ parallel executions), minimum setup/maintenance, cross-browser/cross-platform testing (include latest Chrome/Firefox/Safari), CI/CD integration, and real-device capabilities like record/playback. & nbsp;

When should teams use KRE?

+

When they need local device testing, integration with existing infrastructure, strict security compliance (keeping executing within their infrastructure), and flexile configuration/control. & nbsp;

Why use both TestCloud and KRE together?

+

To combine broad device/environment coverage and cloud scalability with local security/control, handle capitulum in demand (e.g., launching), and add redundance to obviate single points of failure.

Contributors
The Katalon Team is composed of a diverse group of dedicated professionals, including open matter experts with deep domain knowledge, experienced technical author skilled, and QA specialists who bring a practical, real-world perspective. Together, they conduce to the Katalon Blog, delivering high-quality, insightful articles that empower users to get the most of Katalon ’ s tools and rest updated on the latest tendency in test mechanization and software quality.

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