Top 20 REST Assured Alternatives for API Testing

Explore the best 20 REST Assured alternatives for 2025, featuring powerful tools for API testing, documentation, and management. Whether you need a lightweight solution or a comprehensive platform, this list provides options that suit different development needs and budgets.

Oliver Kingsley

Oliver Kingsley

7 June 2025

Top 20 REST Assured Alternatives for API Testing

When it comes to API testing, Rest Assured has been a popular choice among developers and QA professionals. However, as technology evolves and project requirements change, it's essential to explore alternative tools that may better suit your needs. In this blog post, we'll introduce you to the best 20 Rest Assured alternative.

Tool Name Main Features Pricing
Apidog API design, testing, documentation, supports REST, SOAP, GraphQL, CI/CD integration, mock server, team collaboration Free, $9-$27/user/month, Enterprise: Contact sales
Postman API client, automated testing, mock servers, supports REST, SOAP, GraphQL, team collaboration Free, $14-$49/user/month
SoapUI Functional, security, load testing, supports SOAP, REST, JMS, extensive plugins, Groovy scripting Free (Open Source)
JMeter Load, performance testing, supports REST, SOAP, WebSocket, plugins, CI/CD integration Free (Open Source)
Katalon Studio Automated testing for API, web, mobile, supports REST, SOAP, CI/CD integration, advanced reporting Free, $2099/year/user
RestConsole Lightweight API testing, supports REST, JSON/XML, browser-based, no installation Free (Open Source)
Pact Contract testing, supports multiple languages, ideal for microservices, CI/CD integration Free (Open Source)
Tavern API testing in YAML, Python-based, pytest integration, supports REST Free (Open Source)
SwaggerHub API design, documentation, OpenAPI support, team collaboration, versioning Free, $23/month (Team), Enterprise: Custom
Karate BDD-style testing with Gherkin, supports REST, SOAP, GraphQL, CI/CD integration, parallel execution Free (Open Source), $100-$1400/year
TestCafe End-to-end web testing, supports REST, JavaScript/TypeScript, cross-browser, CI/CD integration Free (Open Source)
ReadyAPI Functional, load, security testing, supports REST, SOAP, GraphQL, service virtualization Starting at $985/year/license
RestSharp .NET HTTP client library, supports REST, async/sync calls, easy integration with .NET testing frameworks Free (Open Source)
Chakram JavaScript-based API testing, built on Node.js, deep assertions, BDD-style testing, CI/CD integration Free (Open Source)
PyRestTest Declarative JSON/YAML tests, Python-based, supports REST, easy to integrate Free (Open Source)
HTTPie Command-line HTTP requests, supports REST, JSON syntax highlighting, plugins Free (Open Source)
Newman Command-line runner for Postman collections, CI/CD integration, reporting, data-driven testing Free (Open Source)
Paw API client for macOS, supports REST, SOAP, GraphQL, request composition, environment variables, collaboration Free for 5 users, $10/user/month for additional users
Apigee API management, design, security, testing, monitoring, analytics, supports REST, SOAP, GraphQL Free tier, pay-as-you-go starting at $20
Pytest Python testing framework, supports unit, functional, API testing, fixtures, CI/CD integration Free (Open Source)

1. Apidog

Apidog is a versatile API design, testing, and documentation tool that aims to streamline the API development process. It serves as a comprehensive Rest Assured alternative, providing a collaborative environment for developers and testers to create, test, and manage APIs. Apidog supports both manual and automated testing, making it a valuable tool for teams working on complex API projects.

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Website: Apidog


2. Postman

Postman is one of the most popular API testing tools and a Rest Assured alternative. It offers a user-friendly interface and a comprehensive suite of features for testing, documenting, and monitoring APIs. Its collaboration features allow teams to share and manage APIs efficiently, making it a favorite among developers and testers alike.

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Website: Postman


3. SoapUI

SoapUI is a leading API testing tool and another strong Rest Assured alternative, primarily used for testing SOAP and REST services. It offers a range of features, including functional testing, security testing, and load testing. SoapUI’s extensive plugin ecosystem and scripting capabilities make it a versatile tool for comprehensive API testing.

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Website: SoapUI


4. JMeter

Apache JMeter is a popular open-source tool designed for load testing and performance measurement. It’s widely used for testing web applications and services, but also serves as a viable Rest Assured alternative for API testing, particularly for REST APIs. Its extensibility through plugins and ease of integration with other tools makes it a robust choice for API testing.

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Website: JMeter


5. Katalon Studio

Katalon Studio is an all-in-one testing platform that supports API, web, mobile, and desktop testing. It’s a comprehensive Rest Assured alternative that provides automated testing with minimal scripting required. Katalon Studio’s powerful features, including built-in keywords, test data management, and seamless CI/CD integration, make it a preferred choice for testers looking for an all-encompassing solution.

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Website: Katalon Studio


6. RestConsole

RestConsole is an open-source, lightweight tool for testing RESTful APIs. It’s a simple and straightforward tool that provides a basic interface for sending HTTP requests and analyzing responses. RestConsole is an excellent Rest Assured alternative for developers looking for a no-frills tool to quickly test APIs.

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Website: RestConsole


7. Pact

Pact is an open-source tool specifically designed for contract testing of APIs, providing a focused and reliable Rest Assured alternative. It allows developers to create consumer-driven contracts that are then verified against provider APIs. Pact is particularly useful for microservices architectures, ensuring that different services can communicate correctly without breaking existing functionality.

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Website: Pact


8. Tavern

Tavern is a Python-based tool for testing RESTful APIs, providing a simple yet powerful way to write tests in YAML format. It is particularly well-suited for developers already working within the Python ecosystem, making it a strong Rest Assured alternative. Tavern integrates easily with pytest, making it a seamless addition to existing testing frameworks.

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Website: Tavern


9. SwaggerHub

SwaggerHub is a collaborative platform designed for API design and documentation, offering a unique Rest Assured alternative with a focus on design and documentation. It supports OpenAPI specifications and provides tools for designing, testing, and documenting APIs in a collaborative environment. SwaggerHub is ideal for teams looking to streamline their API development process and ensure consistent API standards.

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Website: SwaggerHub


10. Karate

Karate is an open-source framework for API testing, known for its simplicity and ease of use, making it a popular Rest Assured alternative. It allows users to write tests in a BDD (Behavior-Driven Development) style using Gherkin syntax, which makes it accessible even to non-developers. Karate supports not only RESTful APIs but also SOAP, GraphQL, and web services, making it a versatile tool for testing.

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Website: Karate


11. TestCafe

TestCafe is an open-source framework for end-to-end testing of web applications, but it also offers capabilities for API testing. Built on Node.js, TestCafe allows you to write tests using JavaScript or TypeScript. Known for its easy setup, cross-browser testing, and extensive support for modern web technologies, it serves as a notable Rest Assured alternative.

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Website: TestCafe


12. ReadyAPI

ReadyAPI is an all-in-one API testing tool developed by SmartBear, designed for both functional and performance testing of RESTful, SOAP, and GraphQL APIs. As a comprehensive Rest Assured alternative, ReadyAPI supports automated testing, security testing, and service virtualization, providing a complete platform for API quality assurance.

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Website: ReadyAPI


13. RestSharp

RestSharp is a popular open-source HTTP client library for .NET, providing an easy way to consume APIs. While it’s primarily a library rather than a full-fledged testing tool, RestSharp is widely used in API testing scenarios and is considered a lightweight Rest Assured alternative due to its simplicity and flexibility in handling RESTful services within .NET applications.

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Website: RestSharp


14. Chakram

Chakram is a JavaScript-based API testing framework built on top of Node.js and Mocha, offering a flexible way to write expressive and readable tests for RESTful APIs. As a powerful Rest Assured alternative, Chakram allows developers to perform deep assertions on HTTP responses, making it a robust tool for testing REST APIs.

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Website: Chakram


15. PyRestTest

PyRestTest is a simple yet powerful tool for RESTful API testing, written in Python. It allows users to define tests in a declarative JSON or YAML format, making it easy to write and maintain tests. PyRestTest is a great Rest Assured alternative, particularly for developers who prefer working within the Python ecosystem.

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Website: PyRestTest


16. HTTPie

HTTPie is a user-friendly command-line tool for interacting with web APIs. While it’s primarily a tool for manual testing and debugging, HTTPie’s simplicity and powerful features make it a popular Rest Assured alternative for developers who need to test APIs quickly and efficiently from the terminal.

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Website: HTTPie


17. Newman

Newman is a command-line collection runner for Postman, enabling automated and scheduled execution of Postman tests. As a Rest Assured alternative, Newman is particularly useful for integrating Postman tests into CI/CD pipelines, making it easy to run tests as part of the deployment process.

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Website: Newman


18. Paw

Paw is a powerful API client for macOS, designed to streamline the process of testing and debugging APIs. It supports REST, SOAP, and GraphQL APIs, providing an intuitive interface for crafting requests, analyzing responses, and organizing API projects. Paw stands out as a macOS-specific Rest Assured alternative, offering advanced features in a sleek, platform-native package.

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Website: Paw


19. Apigee

Apigee is a comprehensive API management platform offered by Google Cloud, providing tools for designing, securing, monitoring, and testing APIs. While it’s primarily an API management solution, Apigee’s integrated testing and analytics features make it a powerful Rest Assured alternative for ensuring API quality and reliability.

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Website: Apigee


20. Pytest

Pytest is a widely-used testing framework in Python, offering powerful features for writing and running tests. While it’s not exclusively an API testing tool, Pytest’s extensive plugin ecosystem and support for fixtures and parameterized testing make it an excellent Rest Assured alternative for API testing within Python projects.

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Website: Pytest


Summary

These 20 alternatives to REST Assured provide a wide range of features and capabilities, catering to different needs and preferences in API testing. Whether you’re looking for a simple command-line tool, a comprehensive testing platform, or an integrated API management solution, there’s a REST Assured alternative on this list that will meet your requirements.

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