Software Alternatives, Accelerators & Startups

swagger.io VS Swagger Codegen

Compare swagger.io VS Swagger Codegen and see what are their differences

swagger.io logo swagger.io

Swagger is an open source RESTapi Documentation Tool.

Swagger Codegen logo Swagger Codegen

Swagger Codegen can reduce the complexities that arise in your build process by providing client SDKs and server stubs for any API you want.
  • swagger.io Landing page
    Landing page //
    2023-05-11
  • Swagger Codegen Landing page
    Landing page //
    2023-08-24

swagger.io features and specs

  • Comprehensive Documentation
    Swagger.io offers extensive documentation that is easy to understand, making it accessible for both beginners and advanced users to document and visualize APIs.
  • Interactive API Exploration
    Swagger UI allows developers to test endpoints directly from the browser, which significantly enhances the API development and debugging process.
  • Automated Code Generation
    Swagger can generate client and server code in multiple languages, reducing the time and effort needed to develop APIs.
  • Standardization
    Swagger adheres to the OpenAPI Specification, which is widely recognized and helps in maintaining a standard format across different APIs.
  • Wide Adoption
    Being one of the most popular tools for API documentation, Swagger has a large community and wide industry adoption, which facilitates better support and resources.
  • Third-Party Integrations
    Swagger supports numerous third-party integrations, enabling seamless integration into CI/CD pipelines and other development workflows.

Possible disadvantages of swagger.io

  • Learning Curve
    Despite its comprehensive documentation, there can be a steep learning curve for beginners who are not familiar with API documentation and the OpenAPI Specification.
  • Complexity with Large APIs
    For very large APIs with numerous endpoints, the Swagger UI can become unwieldy and less performant, making it difficult to manage and visualize.
  • Customization Limitations
    While Swagger offers a lot of out-of-the-box features, there are limitations in terms of customizing the UI and some other aspects without delving into code.
  • Dependency on Additional Tools
    To fully utilize Swagger's capabilities, especially in code generation and testing, developers often need to rely on additional tools and libraries, which can add to the complexity.
  • Performance Overhead
    Running the Swagger documentation server can introduce some performance overhead, which might be noticeable in environments with limited resources.

Swagger Codegen features and specs

  • Automation
    Swagger Codegen automates the process of generating client libraries, server stubs, API documentation, and more from an OpenAPI Specification. This reduces manual effort and speeds up development.
  • Multi-Language Support
    It supports a wide range of programming languages and frameworks, enabling developers to generate code for various platforms and technologies with ease.
  • Consistency
    By generating code from a single API specification, it ensures consistency across different client implementations, reducing the likelihood of discrepancies.
  • Community and Extensibility
    Swagger Codegen is open-source and has an active community, allowing users to contribute or extend functionality to meet specific needs through plugins or templates.

Possible disadvantages of Swagger Codegen

  • Customization Complexity
    While customization is possible, it can be complex and time-consuming, especially for teams that require highly customized code generation templates.
  • Learning Curve
    Using Swagger Codegen effectively requires understanding the OpenAPI Specification and the tool's configuration options, which may present a learning curve for new users.
  • Generated Code Quality
    The quality and performance of the generated code can vary depending on the language and framework. Developers may need to make significant modifications to meet production standards.
  • Dependency Management
    Generated projects may include dependencies that need careful management to ensure compatibility and security, which may add additional overhead to the development process.

swagger.io videos

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Swagger Codegen videos

Jesse Collis - Automatically Generating your API Client with Swagger and Swagger Codegen

Category Popularity

0-100% (relative to swagger.io and Swagger Codegen)
API Tools
87 87%
13% 13
Development
0 0%
100% 100
Documentation
100 100%
0% 0
Tool
0 0%
100% 100

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.io and Swagger Codegen

swagger.io Reviews

Introduction to Doxygen Alternatives In 2021
Swagger io is a software application In the Documentation as a Service & Tools department of a technology stack. It is an open-source tool. Swagger io is an independent set of Javascript, CSS, and HTML tools from a Swagger-compliant API that dynamically produces paperwork and sandbox.
Source: www.webku.net
Doxygen Alternatives
Swagger io is a software In the Documentation as a Service & Tools division of a technology stack. It is an open-source tool. Swagger io is an independent set of Javascript, CSS, and HTML tools from a Swagger-compliant API that dynamically creates documentation and sandbox.
Source: www.educba.com

Swagger Codegen Reviews

We have no reviews of Swagger Codegen yet.
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Social recommendations and mentions

Based on our record, swagger.io should be more popular than Swagger Codegen. It has been mentiond 95 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.io mentions (95)

  • How API Schema Validation Boosts Effective Contract Testing
    OpenAPI (Swagger): A comprehensive approach to API design that includes built-in schema validation capabilities. - Source: dev.to / 9 days ago
  • 🚀 The Ultimate Guide to REST API Design: Best Practices & Patterns You Can’t Ignore
    Not documenting your API (use tools like Swagger). - Source: dev.to / 2 months ago
  • Squido: A Beginner’s Guide to the HTML Website Generator
    Swagger API doc: It enables swagger and generates your super fast static API documentation. - Source: dev.to / 3 months ago
  • API Lifecycle Management: Key Strategies for Success
    Comprehensive documentation is vital for the success of an API. Providing clear, developer-friendly documentation helps users understand how to use the API effectively. Tools like Swagger and Postman offer powerful documentation capabilities. Swagger allows developers to create interactive API documentation, while Postman provides detailed guides and examples. For instance, a survey by Postman revealed that 95% of... - Source: dev.to / 3 months ago
  • API Titans Collide: OpenAPI vs. Swagger vs. Postman – The 2025 Developer’s Guide
    Imagine standing at the crossroads of innovation where three API titans—OpenAPI, Swagger, and Postman—are not just tools, but partners in your journey toward building robust, user-friendly APIs. In 2025, as the API landscape evolves faster than ever, choosing the right tool isn’t just about convenience—it’s about empowering your development process and giving your projects a competitive edge. - Source: dev.to / 3 months ago
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Swagger Codegen mentions (14)

  • Swagger Made Simple: A Walkthrough of API Documentation
    Swagger Codegen is a tool that generates code from your API specifications. It creates templates for server or client apps in various languages, saving time by providing a base for API integration. - Source: dev.to / 7 months ago
  • How to Write Great API Documentation 🗒
    Swagger Codegen: Generate client libraries and API documentation (click here). - Source: dev.to / 9 months ago
  • How to Build Efficient CRUD Apps?
    Swagger Codegen: Automatically generates client SDKs, server stubs, and API documentation based on the OpenAPI specification. - Source: dev.to / 9 months ago
  • Let's write a simple microservice in Clojure
    Swagger descriptor for REST API with nice Swagger UI console. Nowadays, it is a standard de facto. Microservices should be accessible via HTTP and operate with data in a human-readable JSON format. As a bonus, it is super easy to generate data types and API client code for the client side (it works well for a TypeScript-based front-end, for example). - Source: dev.to / about 1 year ago
  • Different Levels of Project Documentation
    Often used for cases where a project exposes a REST or other type of API service. Open API is a popular method of documenting such API services. It can also be used along side tools such as Swagger Codegen to produce boilerplate code for API interaction / testing purposes. There may also be support files for popular API testing tools such as Postman or Insomnia. This makes it easier at a glance to see what data is... - Source: dev.to / over 1 year ago
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What are some alternatives?

When comparing swagger.io and Swagger Codegen, you can also consider the following products

Doxygen - Generate documentation from source code

OpenAPI Generator - OpenAPI Generator enables you to generate documentation, clients, and servers from OpenAPI 2.0/3.x documents without hassle.

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

API Transformer - API Transformer is a powerful solution that enables you to Transform API specifications to any format.

Apigee - Intelligent and complete API platform

Widdershins - Widdershins is an open-source, easy to use Semoasa/ OpenAPI/ AsyncAPI/ definition to ReSlate/Slate compatible markdown released under the MIT License.