Create and run your API tests faster with Katalon

Streamline creation execution for all API types, and easily integrate with CI/CD pipelines. Test across API, UI, mobile for more comprehensive testing with less juggling.

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Your all-in-one API testing toolkit

Supports REST, SOAP, GraphQL APIs and allows importing tests from Swagger, Postman, and WSDL, saving you the effort of rebuilding existing API tests.

Enhance your hybrid project with seamless data access and utilization from API responses, enabling streamlined integration across UI automation, database validation, and more.

Validate objects or strings against schemas using the Test Request Editor and script, introducing new keywords for schema verification to ensure compliance with test requests.

Easily create web test cases in minutes with flexible coding options and AI-driven features.

Craft API tests in minutes, leveraging low-code capabilities infused with cutting-edge AI-driven features.

Supports all API architectural styles

Build and send SOAP 1.1 / SOAP 1.2 calls with GET or POST - full envelope, headers, and auth.

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Send RESTful requests with required parameters, body data, and authorization details.

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Design, send, and validate GraphQL queries & mutations via GET/POST, with schema introspection.

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Why automate API testing with Katalon?

Efficiency at scale

Supercharge API testing with faster execution and frees your team for impactful testing, accelerating your release cycles.

Greater test coverage

Reinforce API’s quality through AI-driven insights, extensive test coverage, and wider range of testing scenarios.

Seamless integration

Streamline development pipeline with seamless CI/CD integration, ensuring consistent quality on every code change.

Elevated collaboration

Enhance collaboration with stakeholders across different roles, for actionable insights and informed decision making.

Trusted by 30K+ teams globally

Over 80% of our users report faster product releases and enhanced product quality.

Creating automated test scripts faster and analyzing results in the cloud

Testing with Katalon Studio is truly easy to set up — say goodbye to cruel settings... it provides out the box integrations with other CI tools (Jenkins) to support our CI testing goal. We also find Katalon Studio is stable, light, and more powerful than other tools. We can custom test with TDD, BDD, DDT, and more.
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Streamlined test cycles and better services for customers

When I heard about Katalon, I realized that it was exactly what I wanted to create and it was already created... Katalon offers the ability to create test variables and override them within the test suites with some external CSV files that are incredibly easy to use.
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For a more efficient and enjoyable testing journey

Katalon's operational simplicity has significantly benefited Cigniti, making it accessible to individuals with limited technical knowledge. Katalon’s ease of use and quick learning curve have reduced the testing team's efforts by an average of 50%. Katalon Studio and Runtime Engine have improved testing speed, coverage, and overall productivity for Cigniti.
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Loved by 100K+ users worldwide

Gartner

4.4

Capterra

4.5

GetApp

4.4

Grid Leader Small Business _ Summer 2025

Shubham S.

QA Executive

“It is very helpful in regression testing, easy to use, easy to understand, and has many advantages when compared to other frameworks.”

Amaan U.

Associate Quality Assurance Engineer

“Katalon Studio is a very good tool for automation. It has all the top notch qualities to create a robust framework that can cover large automation.”

Kimberly M.

QA Manager

“Katalon made automation a reachable option! I really love how easy it makes the automation process, in addition to how easy to use and understand this program is.”

Simplify and transform your API testing today

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Create and run your API tests faster with Katalon

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Your 30-day trial comes with

Your all-in-one API testing toolkit

Broad protocol and import

Hybrid project support

Schema validation

Flexible parameterization

Test efficiently with an AI-enabled low-code approach

Supports all API architectural styles

See API test automation in action

Smooth learning curve →

Easy setup →

Cost efficient →