Top Postman Competitors and Alternatives in 2024

Postman, a popular API client and testing tool, has been a go-to choice for many developers. However, with recent controversial changes in its features and pricing, developers are seeking alternative options for API testing. This article provides a comprehensive list and comparison of the top Postman competitors and alternatives in 2024.

In today’s fast-paced development environment, having a reliable API testing tool is crucial for ensuring the quality and functionality of your APIs. While Postman has been a favorite among developers for its user-friendly interface and extensive features, some recent changes have left developers looking for alternative solutions.

Whether you are a seasoned developer or just starting out in API testing, it’s important to explore the top Postman competitors and alternatives available in 2024. The right tool can improve your testing workflow, increase efficiency, and ultimately help you deliver high-quality APIs.

In the following sections, we will delve into the details of various API testing tools that can serve as alternatives to Postman. From feature comparisons to in-depth reviews, we will provide you with all the information you need to make an informed decision.

So, if you’re searching for the best tools like Postman or if you’re simply curious about the popular API testing platforms out there, keep reading. We’ve got you covered with this definitive guide to the top Postman competitors and alternatives in 2024.

Comparison Table of Postman Alternatives

To help developers make an informed decision, we have created a comparison table that highlights the key features and availability of various Postman alternatives. The table includes important details such as platform support, free and premium plans, coding skills required, support for different types of APIs (Restful, GraphQL, SOAP), request chaining, environments, and more. This comparison table serves as a useful reference for developers looking to find the best alternative to Postman.

Testfully is a powerful API client and cloud-native solution that offers an extensive range of features and automated API testing capabilities. Designed as a reliable alternative to Postman, Testfully provides developers with a seamless experience for API testing and client management.

With Testfully, developers can experience the API testing superpower that this platform delivers. It supports various types of APIs including Restful, GraphQL, XML, Soap, and Yaml, making it a versatile choice for testing different APIs.

One of the standout features of Testfully is its powerful request builder with scripting capabilities, allowing developers to create complex API requests and run automated scripts for efficient testing. This functionality enhances testing speed and accuracy while empowering developers to handle intricate testing scenarios effortlessly.

The platform also offers environments for managing variables and settings, enabling developers to create and store different configurations for their API tests. This feature streamlines the testing process by providing the flexibility to switch between different environments seamlessly.

Testfully’s extensive API support ensures compatibility with a wide range of API specifications and formats, empowering developers to test APIs effectively. It also offers a Postman importer, simplifying the transition from Postman to Testfully and allowing developers to continue their testing seamlessly without the hassle of recreating requests from scratch.

Whether you are working on Mac, Windows, Linux, or prefer utilizing a modern browser for your API testing needs, Testfully provides a cloud-native solution that caters to your preferences without compromising performance or functionality.


Yaak is a lightweight and cross-platform tool that serves as a fantastic alternative to Postman. It allows developers to effortlessly send HTTP requests and debug APIs with its user-friendly UI. Whether you’re on Mac, Windows, or Linux, provides a seamless experience across platforms.

One of the standout features of Yaak is its support for environment variables. With this capability, developers can easily manage and configure different variables for testing various scenarios. Additionally, Yaak offers the convenience of organizing requests into folders, enabling quick access and streamlined project management.

A notable feature that sets Yaak apart is its folder runner functionality. With a single click, developers can execute multiple requests within a folder, enhancing efficiency and productivity. This feature is especially beneficial for projects involving extensive API testing.

Yaak is still relatively new in the market, but its simplicity, speed, and user-friendly interface make it a promising choice for developers seeking a lightweight and efficient API client. Its cross-platform compatibility ensures accessibility for developers across different operating systems, providing a consistent experience regardless of your preferred platform.


Bruno is an open-source API client that provides a viable alternative to Postman. With a focus on local storage and version control, Bruno offers a range of features that make it a compelling option for developers.

One of the standout features of Bruno is its use of Bru Lang, a domain-specific language that facilitates easy versioning and collaboration with colleagues. This language allows developers to efficiently manage changes and work together seamlessly.

Available for Windows, Mac, and Linux platforms, Bruno supports multiple operating systems, ensuring accessibility for developers across different environments. Whether you’re using Windows, Mac, or Linux, Bruno is there to support your API testing needs.

Bruno serves as a powerful API client with an intuitive request builder that supports Restful and GraphQL APIs. It also offers environments for managing variables and settings, enabling developers to streamline their workflows and efficiently handle different test scenarios.

Additionally, Bruno provides scripting capabilities, allowing developers to automate tasks and enhance their testing processes. This feature empowers developers to create automated workflows and run complex scripts to test API functionality thoroughly.

As an open-source tool, Bruno offers the advantage of being highly customizable and adaptable to developers’ needs. Its open nature allows the community to contribute to its development, ensuring continuous improvement and the introduction of new features.

Although Bruno is an offline-only tool and does not provide cloud sync capabilities, its emphasis on local storage and version control offers a secure and reliable solution. Developers can have full control over their data and easily manage different versions of their API projects.

To summarize, Bruno is an open-source API client that prioritizes local storage and version control. With its support for multiple platforms, powerful request builder, scripting capabilities, and customizable nature, Bruno presents an attractive alternative to Postman for developers seeking a flexible and robust API testing tool.


Insomnia is a highly acclaimed REST API client that provides developers with a comprehensive set of features for both API design and testing. With its user-friendly interface and extensive capabilities, Insomnia is a strong contender as a Postman alternative.

Designed to streamline API workflows, Insomnia offers support for RESTful API design and testing, allowing developers to easily create, manage, and debug APIs. Whether you need to design a new API or test the functionality of an existing one, Insomnia provides a seamless experience.

One of the standout features of Insomnia is its user-friendly UI, which simplifies the entire API testing process. With its intuitive layout and navigation, developers can quickly build and send API requests, view responses, and analyze data. The UI is designed to ensure a smooth and efficient testing experience.

Insomnia also offers support for advanced API testing scenarios through its code snippets and scripting capabilities. These features allow developers to automate complex workflows, handle dynamic data, and perform intricate API testing tasks.

In addition, Insomnia provides built-in support for GraphQL, a query language for APIs. This makes it an excellent choice for developers working with GraphQL-based APIs, providing a dedicated workspace with all the necessary tools and features to streamline the testing process.

Insomnia also offers robust support for environment variables, which allows developers to manage and switch between different configurations seamlessly. By leveraging environment variables, developers can easily adapt their API testing setup to various environments, saving time and effort.

Collaboration is made simple with Insomnia, as it supports team-based workflows and enables developers to easily share API workspaces with colleagues. This fosters collaboration, facilitates knowledge sharing, and boosts productivity within development teams.

Insomnia is available for multiple platforms, including Windows, Mac, and Linux, ensuring that developers can seamlessly integrate it into their preferred development environment. This cross-platform availability makes Insomnia a versatile tool that caters to a wide range of developers.

To summarize, if you are looking for a powerful, user-friendly, and feature-rich REST API client, Insomnia is an excellent choice. With its extensive capabilities for API design and testing, support for code snippets and scripting, built-in GraphQL support, user-friendly UI, and collaboration features, Insomnia offers everything developers need to streamline their API workflows and boost their productivity.


Swagger is a versatile tool that serves as an API design and documentation platform. Along with its design capabilities, Swagger offers a wide range of features that support API testing as well. One of its notable components is Swagger UI, which provides interactive documentation for APIs. With Swagger UI, developers can easily share their API documentation and demonstrate its capabilities to others.

Swagger also offers essential features for API testing. Developers can take advantage of API mocking, which enables them to simulate API responses during testing. Additionally, Swagger provides code generation capabilities through Swagger Codegen, allowing developers to generate client SDKs and server stubs based on the API specifications.

A key advantage of Swagger is its adherence to the OpenAPI standard. OpenAPI, formerly known as Swagger, is a widely used specification for defining RESTful APIs. By utilizing Swagger’s OpenAPI support, developers can ensure compatibility and interoperability across different API implementation tools.

While Swagger provides a powerful set of tools for API design, documentation, and testing, it’s worth noting that there may be some limitations in terms of functionality and customization. However, its comprehensive features and adherence to industry standards make Swagger a reliable alternative to Postman for developers seeking a complete API solution.


JMeter, also known as Apache JMeter, is a powerful tool primarily used for performance testing. However, it can also serve as an effective API testing tool. Developers can utilize JMeter to conduct load testing, functional testing, and validate the behavior of APIs through HTTP requests.

With JMeter, you can simulate real-world scenarios by creating different load levels and measuring how your API performs under various conditions. This allows you to identify any bottlenecks and optimize your API for better performance.

JMeter provides a scripting feature that enables developers to create and execute complex test scenarios. This flexibility allows for advanced API testing, such as simulating specific user behaviors, handling dynamic data, or integrating with external systems.

In addition, JMeter offers a command line interface (CLI) for automated API testing. This allows you to integrate API testing into your continuous integration and delivery (CI/CD) pipelines, making it easier to ensure the quality of your APIs at every stage of development.

While JMeter may not have all the dedicated features of a comprehensive API testing tool, it provides a viable option for developers looking to combine load testing and API testing within a single tool. Its robust performance testing capabilities make it well-suited for developers who require both load testing and API testing functionalities.

Overall, JMeter offers a reliable solution for developers who want to assess the performance, functionality, and behavior of their APIs through a specialized tool.


ReadyAPI by SmartBear is a powerful and comprehensive GUI-based tool for API testing and monitoring. With its extensive testing capabilities, developers can efficiently design and execute API tests to ensure the reliability and functionality of their APIs. ReadyAPI’s advanced features make it a standout alternative to Postman for API testing and monitoring needs.

One of the key advantages of ReadyAPI is its user-friendly interface, which allows developers to easily navigate and interact with the tool. The GUI-based design makes it accessible to users of all skill levels, enabling them to create and manage API tests efficiently.

ReadyAPI also offers seamless integration with CI/CD pipelines, enabling developers to incorporate API testing into their continuous integration and delivery workflows. This integration streamlines the testing process and ensures that the APIs are thoroughly tested throughout the development lifecycle.

Furthermore, ReadyAPI provides support for Swagger, the popular API design and documentation framework. This support allows developers to import Swagger specifications into ReadyAPI and utilize them for API testing and monitoring. By leveraging ReadyAPI’s integration with Swagger, developers can efficiently work with and test APIs defined using Swagger’s OpenAPI specification.


In conclusion, developers looking for advanced API testing solutions have several top Postman alternatives to choose from in 2024. Each alternative, including Testfully, Yaak, Bruno, Insomnia, Swagger, JMeter, and ReadyAPI, offers its own unique set of strengths and weaknesses. The right API testing tool ultimately depends on the specific needs and project requirements of the developer.

Testfully stands out as a fully-fledged API client with powerful testing capabilities, while Yaak offers a lightweight and user-friendly option for sending HTTP requests and debugging APIs. Bruno, an open-source tool, emphasizes local storage and version control, making it a great choice for collaboration. Insomnia, on the other hand, combines API design and testing features with a user-friendly UI and GraphQL support.

For developers focused on API design and documentation, Swagger provides interactive documentation, API mocking, and customization options. JMeter, primarily known for performance testing, also offers API testing capabilities, making it a suitable choice for load testing. Meanwhile, ReadyAPI by SmartBear offers a comprehensive GUI-based tool with advanced testing capabilities and CI/CD integration.

When choosing the right API testing tool to replace Postman, developers should consider the specific features, ease of use, platform compatibility, scripting capabilities, and integration options that align with their project requirements. By selecting the most suitable alternative, developers can ensure efficient and effective API testing.


What is Testfully?

Testfully is a fully-fledged API client with an automated API testing superpower. It is available as a Cloud-native solution for Mac, Windows, Linux, or through a modern browser. Testfully offers a range of features that make it a strong alternative to Postman.

What is Yaak?

Yaak is a lightweight and cross-platform tool for sending HTTP requests and debugging APIs. It offers a user-friendly UI and supports features such as environment variables, folders for organizing requests, and a folder runner for executing multiple requests in a folder with a single click.

What is Bruno?

Bruno is an open-source API client that emphasizes local storage and version control. It uses a domain-specific language called Bru Lang, which allows for easy versioning and collaboration with colleagues. Bruno is available for Windows, Mac, and Linux platforms and offers features such as API support (Restful, GraphQL), a robust request builder with scripting capabilities, environments for managing variables, and more.

What is Insomnia?

Insomnia is a popular REST API client that offers features for both API design and testing. It provides a user-friendly UI, supports features such as code snippets, environment variables, and collaboration, and has built-in support for GraphQL. Insomnia is available for Windows, Mac, and Linux platforms.

What is Swagger?

Swagger is an API design and documentation tool that offers a range of features for API testing as well. Swagger UI, a component of Swagger, provides interactive documentation for APIs, making it easy to share and understand the capabilities of an API. Swagger also offers features such as API mocking, code generation with Swagger Codegen, and customization options for Swagger UI.

What is JMeter?

JMeter is primarily known as a performance testing tool, but it can also be used for API testing. With JMeter, developers can perform load testing, functional testing, and validate the behavior of APIs through HTTP requests. JMeter supports scripting for advanced scenarios and offers a command line interface for automated API testing.

What is ReadyAPI?

ReadyAPI by SmartBear is a comprehensive API testing and monitoring tool that provides a range of advanced features. It offers a GUI-based interface for designing and executing API tests, supports extensive testing capabilities, and integrates with CI/CD pipelines for seamless integration into development workflows. ReadyAPI also provides support for Swagger.
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