The Best Postman Alternatives to Streamline API testing

Postman is an API platform for prototyping, documenting, and testing APIs in one single place. Its developer-friendly interface and comprehensive features make it a go-to tool for various businesses and teams. Postman supports various authentication types, enables on-demand testing with minimal setup, and works well with platforms like SAP CAP and SAP Build Process Automation. Despite such advantages, it isn’t free of drawbacks. For instance, the learning curve for advanced features, such as scripting in pre-request sections, can be steep, especially for solo developers or smaller teams. It can slow down or crash when handling extensive collections of datasets. Postman consumes significant CPU and RAM as a desktop app, affecting overall system performance. Its data management and manipulation tools are limited, making it difficult to execute complex test scenarios. Plus, Postman doesn’t have offline functionality. The good news is that plenty of alternative solutions offer faster performance, better integrations, or just a more straightforward experience. All you need to do is find the right tool for your work. In this blog, we’ll discuss 15 Postman alternatives, their features, pros and cons, and pricing. 1 Best Postman Alternatives in 2025 1. TestGrid TestGrid is an AI-powered end-to-end testing platform for web and mobile apps. It offers a secure and scalable test infrastructure for testing on real mobile devices and browsers through cloud services or on-premises setups. TestGrid supports API testing, positioning itself as a dynamic Postman alternative for those looking to integrate automated testing into their CI/CD pipelines. Before running GUI tests, validating the app’s code-level functionality through API and backend testing is essential. This helps catch subtle issues early in the development cycle, reducing the chances of critical failures during UI testing. The approach is beneficial if you work with an offshore QA team to test your API. TestGrid allows you to test on actual remote devices, browsers, operating systems, and versions — ensuring high accuracy and consistency across test runs. With quick alerts and faster debugging, you can prevent errors before they reach production, minimizing the Mean Time to Resolution (MTTR). One of TestGrid’s standout features is CoTester, the world’s first AI agent for software testing. It’s pre-trained on SLDC and advanced software testing fundamentals and uses true AI to understand user intent without rigid syntax constraints. It creates detailed test case descriptions and comes with a step-by-step editor for automated workflows. TestGrid features Test native, web, and hybrid apps on 1,000+ iOS and Android devices Validate functionality across APIs, UIs, servers, and databases, leading to improved product quality Evaluate app performance across devices with varying battery life, network conditions, and responsiveness Detect even the most minor visual deviations in your app with visual testing — no need to add any external SDK Record actions, create test scripts and automate tests in minutes with the intuitive ‘record and playback’ feature Set up Xray integration in minutes and view real-time execution statuses, timestamps, and downloadable reports directly inside JIRA Access remote devices using the Remote Lite feature, which provides instant connectivity via QR code or URL — only secure SSO authentication is required Scroll and swipe on remote iOS device with fewer touch points; replace full-screen gestures with simple taps, making the testing process faster and less tedious Leverage the Screen Broadcasting Turbo Mode to allow smooth, responsive remote access to iOS devices, even across continents and under low-bandwidth conditions TestGrid pros It enables you to start testing instantly with a clean, intuitive interface that supports automation, performance tracking, and structured test case analysis It equips you to manage broader project tasks by logging bugs, assigning them to team members, taking sprint notes, and setting task reminders It preserves security and control with features such as SSO authentication, link expiration controls, and customizable access settings It’s perfect for testing content-heavy apps like those in gaming or media TestGrid cons Since the platform offers a rich set of powerful testing features, it takes a bit of time to explore fully; however, the detailed documentation makes the learning curve manageable and the test process enjoyable TestGrid pricing Freemium: $0 per month (200 minutes per 2 minute session) Manual Testing: $25 per month (5 users, 1 parallel test) End-to-End Automation: $99 per month (5 users, 1 parallel test) Private Dedicated: Starts from $30 per month (5 users, 1 dedicated device) Enterprise (On-premise/Hosted): Custom pricing 2. SoapUI SoapUI is an open-source web service testing tool for Simple Object Access Protocol (SOAP) and representational state transfers. I

Apr 4, 2025 - 07:16

The Best Postman Alternatives to Streamline API testing

Postman is an API platform for prototyping, documenting, and testing APIs in one single place. Its developer-friendly interface and comprehensive features make it a go-to tool for various businesses and teams.

Postman supports various authentication types, enables on-demand testing with minimal setup, and works well with platforms like SAP CAP and SAP Build Process Automation. Despite such advantages, it isn’t free of drawbacks.

For instance, the learning curve for advanced features, such as scripting in pre-request sections, can be steep, especially for solo developers or smaller teams. It can slow down or crash when handling extensive collections of datasets.

Postman consumes significant CPU and RAM as a desktop app, affecting overall system performance. Its data management and manipulation tools are limited, making it difficult to execute complex test scenarios. Plus, Postman doesn’t have offline functionality.

The good news is that plenty of alternative solutions offer faster performance, better integrations, or just a more straightforward experience.

All you need to do is find the right tool for your work. In this blog, we’ll discuss 15 Postman alternatives, their features, pros and cons, and pricing.

1 Best Postman Alternatives in 2025

1. TestGrid

TestGrid is an AI-powered end-to-end testing platform for web and mobile apps. It offers a secure and scalable test infrastructure for testing on real mobile devices and browsers through cloud services or on-premises setups.

TestGrid supports API testing, positioning itself as a dynamic Postman alternative for those looking to integrate automated testing into their CI/CD pipelines. Before running GUI tests, validating the app’s code-level functionality through API and backend testing is essential.

This helps catch subtle issues early in the development cycle, reducing the chances of critical failures during UI testing. The approach is beneficial if you work with an offshore QA team to test your API.

TestGrid allows you to test on actual remote devices, browsers, operating systems, and versions — ensuring high accuracy and consistency across test runs.

With quick alerts and faster debugging, you can prevent errors before they reach production, minimizing the Mean Time to Resolution (MTTR). One of TestGrid’s standout features is CoTester, the world’s first AI agent for software testing.

It’s pre-trained on SLDC and advanced software testing fundamentals and uses true AI to understand user intent without rigid syntax constraints. It creates detailed test case descriptions and comes with a step-by-step editor for automated workflows.

TestGrid features

Test native, web, and hybrid apps on 1,000+ iOS and Android devices
Validate functionality across APIs, UIs, servers, and databases, leading to improved product quality
Evaluate app performance across devices with varying battery life, network conditions, and responsiveness
Detect even the most minor visual deviations in your app with visual testing — no need to add any external SDK
Record actions, create test scripts and automate tests in minutes with the intuitive ‘record and playback’ feature
Set up Xray integration in minutes and view real-time execution statuses, timestamps, and downloadable reports directly inside JIRA
Access remote devices using the Remote Lite feature, which provides instant connectivity via QR code or URL — only secure SSO authentication is required
Scroll and swipe on remote iOS device with fewer touch points; replace full-screen gestures with simple taps, making the testing process faster and less tedious
Leverage the Screen Broadcasting Turbo Mode to allow smooth, responsive remote access to iOS devices, even across continents and under low-bandwidth conditions

TestGrid pros

It enables you to start testing instantly with a clean, intuitive interface that supports automation, performance tracking, and structured test case analysis
It equips you to manage broader project tasks by logging bugs, assigning them to team members, taking sprint notes, and setting task reminders
It preserves security and control with features such as SSO authentication, link expiration controls, and customizable access settings
It’s perfect for testing content-heavy apps like those in gaming or media

TestGrid cons

Since the platform offers a rich set of powerful testing features, it takes a bit of time to explore fully; however, the detailed documentation makes the learning curve manageable and the test process enjoyable

TestGrid pricing

Freemium: $0 per month (200 minutes per 2 minute session)
Manual Testing: $25 per month (5 users, 1 parallel test)
End-to-End Automation: $99 per month (5 users, 1 parallel test)
Private Dedicated: Starts from $30 per month (5 users, 1 dedicated device)
Enterprise (On-premise/Hosted): Custom pricing

2. SoapUI
SoapUI is an open-source web service testing tool for Simple Object Access Protocol (SOAP) and representational state transfers. Its functionality covers web service inspection, development, simulation, mocking, load, and compliance testing. It’s particularly well-suited for complex enterprise environments that rely on legacy systems.

SoapUI features

Create and run even the most complex scenarios with its drag-and-drop test creation
Mimic your real web services without having to wait for them to be accessible or ready
Perform load testing quickly and easily based on existing functional API tests

SoapUI pros

There’s no need to build expensive full-scale replicas of your production
It has a vibrant community and partner ecosystem, which fosters continuous innovation and learning
SoapUI cons
Setting up and configuring the tool is intimidating for beginners
As test suites grow in complexity, maintaining and updating test cases can be labor-intensive

SoapUI pricing

Free to use, as it’s open-source

3. Apache JMeter

Apache JMeter is a 100% pure Java app designed to load test functional behavior and measure performance. It can simulate a heavy load on a server, group of servers, network, or object. It has a full-featured test IDE that allows fast test plan recording (from browsers or native apps), building, and debugging.

Apache JMeter features

Perform load and performance tests for different apps, servers, and protocol types, including FTP, LDAP, TCP, and Java Objects
Extract data from the most popular response formats, such as JSON, HTML, and XML, for easy correlation
Save test results in various formats; analyze and replay them even when offline

Apache JMeter pros

It offers complete portability and 100% Java purity
It integrates with third-party open-source libraries for Jenkins, Gradle, and Maven

Apache JMeter cons

Although JMeter looks like a browser, it isn’t and doesn’t perform all the actions supported by browsers
It can indeed run out of memory when simulating high loads or using inefficient configurations

Apache JMeter pricing

Free to use, as it’s open-source

4. Bruno
Bruno is a Postman alternative focused on testing local-first, file-based API collections. Developers who prefer version control and lightweight approaches will find this a handy tool. It’s fast and Git-friendly. Bruno is also known for its simple offline-only design.

Bruno features

Use a plain text markup language called Bru to save information about API requests
Store all your API collections (as text files) and configurations directly on your machine
Can be installed via Homebrew, Chocolatey, Scoop, Snap, Flatpak, Apt, and Winget

Bruno pros

It’s available in multiple languages, including English, German, Korean, Arabic, and Russian
It does not require heavy memory usage or background processes

Bruno cons

You can’t collaborate in real time unless you manually use Git to share collections
It’s limited to REST APIs at the moment and doesn’t support GraphQL, WebSockets, and gRPC

Bruno pricing

Free to use, as it’s open-sourc

5. Hoppscotch
Hoppscotch is a web-based API development suite. It was built with accessibility in mind, providing all the functionality needed for API developers with a minimalist and unobtrusive UI. This Postman alternative equips you to modify headers, authenticate requests, generate random data, and more.

Hoppscotch features

Use the CLI to run your requests from the terminal; automate your workflow
Generate code snippets for your requests in various languages and frameworks
Handle different types of communication protocols beyond just standard HTTP requests, including GraphQL, Socket.io, and MQTT

Hoppscotch pros

It’s built with performance in mind and is fast and reliable
It allows you to track all the activities in your workspace

Hoppscotch cons

Because of its focus on simplicity, it’s not apt for advanced testing scenarios
Its documentation may not be as extensive or detailed compared to other Postman alternatives

Hoppscotch pricing

Free: $0 per month
Organization: $8 per month/user, billed monthly

6. cURL
cURL is a CLI tool and library perfect for scripting API requests and test automation. It supports a range of protocols, including FTP, SFTP, HTTP, HTTPS, and more. It helps developers and system administrators make API requests and inspect responses directly from the command line.

cURL features

Minimize bandwidth usage by enabling data compression using formats such as gzip or deflate
Fetch data from a URL (e.g., downloading web pages or files) or submit data (e.g., sending form data or interacting with APIs)
Anonymize your IP, bypass geo-restrictions, or test how your apps perform in different locations by routing requests through a proxy server

cURL pros

Getting help to use the tool properly isn’t a hassle; you can hire any skilled engineer to fix your cURL-related problems
Its source code is easily compiled and built on almost any operating system and platform

cURL cons

It’s targeted at single-shot file transfers and isn’t a wget clone
It’s not an FTP site mirroring program, which means you’ll have to write a script for automated, systematic, and sequential FTP transfers

cURL pricing

Free to use, as it’s open-source

7. Assertible
Assertible is a Postman alternative built for automated assertions, API health checks, and deployment testing. It provides a reliable first line of defense against web service failures, lowering the number of false positives in your automated QA tests and websites.

Assertible features

Automatically sync your API tests with the latest changes in your specifications; add and update responses, headers, parameters, and so on
Set up scheduled monitoring to continuously test your services and customize how you’re alerted about failures
Create domain-specific tests using its powerful and robust HTTP assertions

Assertible pros

It allows you to run your API tests against any environment, like staging or production
It supports modern DevOps workflows like CI/CD pipelines

Assertible cons

It demands a stronger understanding of API concepts and testing methodologies
Scaling API testing with a large number of APIs and tests can become complex and potentially costly

Assertible pricing

Personal: $0 per month (10 tests per service)
Standard: $25 per month (500 tests per service)
Startup: $50 per month (500 tests per service)
Business: $100 per month (1,000 tests per service)

Conclusion

While Postman remains a popular choice for API testing, it’s not without its limitations — especially when it comes to performance, scalability, and offline access. Fortunately, there are several powerful alternatives available in 2025, each catering to different needs, teams, and workflows. Whether you’re looking for AI-powered automation with TestGrid, open-source flexibility with SoapUI and JMeter, or lightweight local-first tools like Bruno, the right API testing solution is out there. Choose the one that best aligns with your project goals and technical stack.

Source: This blog was originally published at Testgrid