Top 20 API Testing Tools Similar to Rest Assured

When it comes to API testing, Rest Assured has long been a favored choice among developers and QA professionals. However, as technology advances and project requirements evolve, it's crucial to explore alternative tools that might better suit your needs. In this blog post, we introduce the 20 best alternatives to Rest Assured.

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)

Top 5 Alternatives Breakdown

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 alternative to Rest Assured, 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.

• Main Features:

  • API design and documentation with integrated testing
  • Supports RESTful, SOAP, and GraphQL APIs
  • Automated and manual testing capabilities
  • CI/CD pipeline integration
  • Mock server support for API simulation
  • Database integration for testing and assertion
  • Collaboration tools for team-based development

• Pricing:

  • Free plan available
  • Basic plan: $9/user/month
  • Professional plan: $18/user/month
  • Enterprise plan: $27/user/month
  • Enterprise On-premises: Contact sales

• Website: Apidog

2. Postman

Postman is one of the most popular API testing tools and a strong alternative to Rest Assured. 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.

• Main Features:

  • Powerful API client and testing environment
  • Supports REST, SOAP, and GraphQL
  • Mock servers and API documentation
  • Collaboration tools for teams

• Pricing:

  • Free plan available
  • Basic plan: $14/user/month
  • Professional plan: $29/user/month
  • Enterprise plan: $49/user/month

• Website: Postman

3. SoapUI

SoapUI is a leading API testing tool and a robust alternative to Rest Assured, 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.

• Main Features:

  • Functional, security, and load testing
  • Supports SOAP, REST, and JMS
  • Scripting with Groovy for advanced testing
  • Extensive plugin support
  • Detailed reporting and analytics

• Pricing:

  • Free (Open Source)

• Website: SoapUI

4. JMeter

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

• Main Features:

  • Load and performance testing for various applications
  • Supports REST, SOAP, and WebSocket
  • Extensive plugin ecosystem
  • Scripting support with JSR223
  • Integration with CI/CD tools

• Pricing:

  • Free (Open Source)

• 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 alternative to Rest Assured 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 seeking an all-encompassing solution.

• Main Features:

  • Automated testing for APIs, web, mobile, and desktop
  • Supports RESTful and SOAP APIs
  • Built-in keywords and data-driven testing
  • CI/CD pipeline integration
  • Advanced reporting and analytics

• Pricing:

  • Free plan available
  • Katalon Premium: $2099/year/user
  • Katalon Ultimate: Contact sales

• Website: Katalon Studio

For more details concerning other tools, visit Rest Assured Alternative.