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Thunder Client VS Aspen - API Testing for macOS

Compare Thunder Client VS Aspen - API Testing for macOS and see what are their differences

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Thunder Client logo Thunder Client

Rest API client for VS Code, lightweight Postman alternative

Aspen - API Testing for macOS logo Aspen - API Testing for macOS

Blazing-fast API tester with AI helper & no login required!
  • Thunder Client Landing page
    Landing page //
    2023-10-05
Not present

Thunder Client features and specs

  • User-Friendly Interface
    Thunder Client offers a clean and intuitive interface that makes it easy for users to create and manage API requests without getting overwhelmed by complex features.
  • VS Code Integration
    Being an extension for Visual Studio Code, it is convenient for developers who already use VS Code, enabling seamless API testing within their development environment.
  • Lightweight
    Compared to other API testing tools, Thunder Client is lightweight, making it ideal for users who need a quick and simple solution for testing APIs without extensive configuration.
  • Environment Variables
    The tool allows the use of environment variables, enabling users to manage different environments effectively and switch between them easily.
  • Support for Collections
    Supports organizing requests into collections, allowing for efficient management and categorization of related requests.

Possible disadvantages of Thunder Client

  • Limited Advanced Features
    Thunder Client lacks some of the advanced features found in more robust API testing tools, such as automation scripts and extensive plugin support.
  • Dependency on VS Code
    As a VS Code extension, it requires Visual Studio Code to run. This dependency can be a drawback for users who prefer other code editors or standalone applications.
  • No Collaboration Features
    Unlike some other API testing tools, Thunder Client does not have built-in collaboration features, which can limit its use in team environments.
  • Platform Specific
    It is primarily designed for use within Visual Studio Code, which may not be ideal for users who work across multiple platforms or require a standalone solution.

Aspen - API Testing for macOS features and specs

No features have been listed yet.

Thunder Client videos

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Thunder Client - API testing right inside VSCode

More videos:

  • Review - Do you really need Postman? | Use Thunder Client - VSCode extension | Easy & Lightweight
  • Review - Thunder client - Vscode extension | Say no to Postman

Aspen - API Testing for macOS videos

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Category Popularity

0-100% (relative to Thunder Client and Aspen - API Testing for macOS)

Thunder Client

Aspen - API Testing for macOS

Developer Tools
90 90%
Developer Tools
10% 10
APIs
90 90%
APIs
10% 10
API Tools
89 89%
API Tools
11% 11
Tech
100 100%
Tech
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Thunder Client and Aspen - API Testing for macOS

Thunder Client Reviews

Best Postman Alternatives To Consider in 2025
This free, feature-rich extension integrates seamlessly with VSCode, making it ideal for developers who prefer a unified environment. Thunder Client offers collection management, environment variables, and basic automation capabilities. It stands out for its tight integration with VSCode's debugging tools.
Source: www.hypertest.co
15 Best Postman Alternatives for Automated API Testing [2022 Updated]
Thunder Client is a Vscode Postman alternative that runs as a Visual Studio Code extension (not open source). Its design focuses on simple and efficient HTTP clients while constructing or connecting with APIs. Thunder Client can handle a wide range of API requests. It effectively processes immense amounts of data simultaneously while not slowing down the VS Code program.
Source: testsigma.com
Top 5 Postman alternatives
Thunder Client is a VS Code extension focusing on being a simple and efficient HTTP client while building or integrating with APIs. It supports collections as a way to group relevant requests. Moreover, ThunderClient supports the concept of Environment and Environment Variables to store and re-use values within multiple requests. Finally, ThunderClinet offers a UI that you...
Source: testfully.io

Aspen - API Testing for macOS Reviews

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Social recommendations and mentions

Based on our record, Aspen - API Testing for macOS seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Thunder Client mentions (0)

We have not tracked any mentions of Thunder Client yet. Tracking of Thunder Client recommendations started around Mar 2021.

Aspen - API Testing for macOS mentions (1)

  • Privacy first API Testing client for Mac
    This is where a tool like Aspen comes in, a native built privacy focused API testing tool. There is no login required, and no requests go to anywhere other than your local machine - unless you choose to share a request with another user. - Source: dev.to / 7 months ago

What are some alternatives?

When comparing Thunder Client and Aspen - API Testing for macOS, you can also consider the following products

Postman - The Collaboration Platform for API Development

Insomnia REST - Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.

API Tester - API Tester is the first mobile app to test any type of API on the go. Including REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS.

Hoppscotch - Open source API development ecosystem

Axe API - The next-generation Rest API framework.

EchoAPI - Next-gen API development collaboration platform. More than just API design, debug, test, load-testing, and mock.

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