Software Alternatives, Accelerators & Startups

Swagger UI VS Thunder Client

Compare Swagger UI VS Thunder Client and see what are their differences

Swagger UI logo Swagger UI

Swagger UI is a dependency-free collection of HTML, Javascript, and CSS assets that dynamically generate beautiful documentation from a Swag

Thunder Client logo Thunder Client

Rest API client for VS Code, lightweight Postman alternative
  • Swagger UI Landing page
    Landing page //
    2023-09-17
  • Thunder Client Landing page
    Landing page //
    2023-10-05

Swagger UI features and specs

  • Interactive API Documentation
    Swagger UI provides a user-friendly interface where developers can interact with an API directly from the documentation, making it easier to understand and use.
  • Automated Documentation Generation
    Swagger UI can automatically generate API documentation from an OpenAPI Specification, reducing the time and effort required to write and maintain documentation manually.
  • Standardization
    It adheres to the OpenAPI Specification, a widely-accepted standard for defining APIs, which promotes consistency and interoperability across different tools and platforms.
  • Comprehensive Testing
    Developers can use the Swagger UI to test endpoints directly, allowing for quicker identification and resolution of issues during development.
  • Customization
    The UI can be customized to fit the specific needs and branding of a project, offering flexibility in how the API documentation is presented.
  • Community and Ecosystem
    Swagger UI is part of a larger Swagger suite of tools, supported by a large community and numerous plugins, enhancing its capabilities and integration options.

Possible disadvantages of Swagger UI

  • Learning Curve
    New users may find Swagger UI complex and might require some time to get familiar with the OpenAPI Specification and the tool’s features.
  • Performance
    For very large APIs with numerous endpoints and complex schemas, Swagger UI can experience performance slowdowns, affecting usability.
  • Initial Setup
    Setting up Swagger UI and configuring the OpenAPI Specification can be time-consuming and requires accuracy to ensure the documentation is correctly generated.
  • Dependency on OpenAPI Specification
    The effectiveness of Swagger UI is highly dependent on the accuracy and completeness of the OpenAPI Specification. Poorly defined specifications can lead to incomplete or incorrect documentation.
  • Security Concerns
    Exposing APIs in an interactive documentation tool can raise security concerns, particularly if sensitive functions are publicly accessible without proper authentication and authorization controls.

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.

Swagger UI videos

No Swagger UI videos yet. You could help us improve this page by suggesting one.

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Thunder Client videos

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

Category Popularity

0-100% (relative to Swagger UI and Thunder Client)
API Tools
62 62%
38% 38
Developer Tools
49 49%
51% 51
APIs
45 45%
55% 55
Documentation
100 100%
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 Swagger UI and Thunder Client

Swagger UI Reviews

Top 20 Open Source & Cloud Free Postman Alternatives (2024 Updated)
Swagger UI is part of the Swagger ecosystem, providing tools for API design and documentation. It allows developers to visualize and interact with APIs effortlessly.
Source: medium.com
Postman Alternatives for API Testing and Monitoring
Swagger UI is a commonly used interactive visualization tool for RESTful web services, used for documenting, designing, and testing APIs. Swagger UI reads the OpenAPI specification document and generates an interactive documentation website. This web-based UI allows users to visualize and interact with the API’s resources without having any of the implementation logic in...
15 Best Postman Alternatives for Automated API Testing [2022 Updated]
One of the most appealing features is that Swagger UI is entirely customizable. You can freely modify your tool to meet your needs with complete access to the source code. Swagger UI makes an existing JSON or YAML document interactive. It creates a platform that organizes and categorizes our methods (get, put, post, delete).
Source: testsigma.com

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.
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

Social recommendations and mentions

Based on our record, Swagger UI seems to be more popular. It has been mentiond 49 times 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.

Swagger UI mentions (49)

  • Common Mistakes in RESTful API Design
    The OpenAPI Specification (formerly Swagger) has become the industry standard for documenting RESTful APIs. Tools like Swagger UI and ReDoc can generate interactive documentation from OpenAPI definitions, reducing the effort to maintain quality documentation. - Source: dev.to / about 2 months ago
  • Leveraging API Documentation for Faster Developer Onboarding
    Reference generators like Swagger UI Automatically create API references from OpenAPI specifications, keeping documentation in sync with the actual API. - Source: dev.to / about 2 months ago
  • How to Build a Task Manager API with Django REST Framework: Part 7 - API Documentation with OpenAPI and Swagger
    We’ll use OpenAPI (a standard for API specifications) and Swagger UI (a tool to visualize and interact with the API) to generate our documentation. The drf-spectacular library will help us create an OpenAPI schema for our DRF API and integrate Swagger UI seamlessly. - Source: dev.to / 2 months ago
  • How to get RCE with LaTeX via file upload
    Who has never analyzed a website and ended up causing an error and discovered that the server was in debug mode and therefore revealing environment variables (like other URLs, database connection strings and even credentials) and routes to API endpoints and their respective Swagger UI documentation? Cool, and who has ever come across something called "LaTeX Compiler API 1.0" among those endpoints? - Source: dev.to / 3 months ago
  • The Good, the Bad, and the OpenAPI: Why Developers Love and Hate It
    Poor UI/UX – OpenAPI-generated documentation tools like Swagger UI are functional but often lack an intuitive experience. - Source: dev.to / 3 months ago
View more

Thunder Client mentions (0)

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

What are some alternatives?

When comparing Swagger UI and Thunder Client, you can also consider the following products

Postman - The Collaboration Platform for API Development

swagger.io - Swagger is an open source RESTapi Documentation Tool.

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.

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

Hoppscotch - Open source API development ecosystem

RapidAPI for Mac - Paw is a REST client for Mac.