Software Alternatives, Accelerators & Startups

Requestly VS Swagger UI

Compare Requestly VS Swagger UI and see what are their differences

Requestly logo Requestly

A Powerful API Mocking and Testing Tool

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
  • Requestly Requestly
    Requestly //
    2025-02-12
  • Requestly Rest Client
    Rest Client //
    2025-02-12
  • Requestly HTTP Interceptor
    HTTP Interceptor //
    2025-02-12
  • Requestly API Mocking
    API Mocking //
    2025-02-12
  • Requestly Requestly
    Requestly //
    2025-02-12

Requestly is a modern and powerful companion for API Development and Testing. It is an open-source tool purpose-built to speed up and simplify API development workflow for developers and QAs. It is a combination of API Client and HTTP Interceptor that helps create and share API Contracts, testing APIs, and easily mock and integrate them into web and mobile apps.

  • Swagger UI Landing page
    Landing page //
    2023-09-17

Requestly

$ Details
freemium
Platforms
Google Chrome Firefox Edge Safari Brave Opera Vivaldi Android Windows Linux Mac OSX
Release Date
2021 January
Startup details
Country
United States
State
California
Founder(s)
Sachin Jain, Sagar Soni, Sahil Gupta
Employees
20 - 49

Swagger UI

Website
swagger.io
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

Requestly features and specs

  • Redirect URL
  • Block Network Requests
  • Modify Request & Response Header
  • Modify Response
  • Supercharge Selenium
  • Session Replay
  • Modify Query Params
  • Team Workspace
  • API Client
  • API Mocks
  • GraphQL Support

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.

Requestly videos

Get Started with Requestly

More videos:

  • Tutorial - Modify API Response using Requestly Chrome Extension
  • Tutorial - How to load local JS file in production sites for faster debugging (Map Local Tool)
  • Tutorial - Report Quality Bugs with Video, Network logs, Console logs & Environment details

Swagger UI videos

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

Add video

Category Popularity

0-100% (relative to Requestly and Swagger UI)
Developer Tools
46 46%
54% 54
API Tools
0 0%
100% 100
Testing
100 100%
0% 0
Localhost Tools
100 100%
0% 0

Questions and Answers

As answered by people managing Requestly and Swagger UI.

Who are some of the biggest customers of your product?

Requestly's answer

  • Verizon
  • AT&T
  • Adobe
  • Salesforce
  • Telegraph
  • Intuit
  • Verizon

How would you describe your primary audience?

Requestly's answer

Front-end developers, QAs, PMs, Digital Marketers

What makes your product unique?

Requestly's answer

Requestly is an open-source API development and testing tool that combines the capabilities of an API Client and HTTP Interceptor, making it a better alternative to Postman + Charles Proxy. It simplifies API mocking, request modification, and debugging with an intuitive no-code interface, enabling developers and QAs to test APIs efficiently.

User comments

Share your experience with using Requestly and Swagger UI. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Requestly and Swagger UI

Requestly Reviews

Comparing Charles Proxy, Fiddler, Wireshark, and Requestly
On the pricing front, Requestly strikes a balance between affordability and functionality. It is an open-source tool, offering freemium to individual developers and affordable pricing plans for team collaboration. We have also clearly differentiated how Requestly differs from Wireshark and other web debugging tools like Proxyman, Modheader, and HTTP ToolKit separately.
Source: dev.to

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

Social recommendations and mentions

Based on our record, Swagger UI should be more popular than Requestly. 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.

Requestly mentions (32)

  • How Not to Use AI in Software Development
    Learn more at https://requestly.com/. - Source: dev.to / 5 months ago
  • How to Intercept network on iOS simulator?
    First, head over to Requestly and download and install the desktop app on your system. - Source: dev.to / 7 months ago
  • Top 10 Essential Tools for Android Development
    Requestly is a powerful tool we developed specifically to streamline the API and web traffic workflow for developers, particularly those working with Android apps. With Requestly, you can intercept, modify, and manipulate HTTP requests and responses in real-time without changing any backend code. This makes it an invaluable tool for debugging, testing, and troubleshooting issues during Android app development. - Source: dev.to / 7 months ago
  • Why ModHeader Users Are Moving to Requestly
    Requestly offers an ad-free and spam-free experience, enhancing productivity and ensuring focus. As an open-source tool, Requestly provides transparency, community-driven improvements, and enhanced security. - Source: dev.to / 8 months ago
  • Configure Amazon Ad Exchange Bids using header modifications
    Requestly is a handy tool that allows you to modify, redirect, or block HTTP requests and responses. This is particularly useful when testing how different header values affect your ad tech setups. - Source: dev.to / 9 months ago
View more

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

What are some alternatives?

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

HTTP Toolkit - Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.

Postman - The Collaboration Platform for API Development

Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.

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

Warp - Warp (Windows Advanced Rasterization Platform) is a high-speed software rasterizer tool designed for the accurate reproduction of bitmap graphics on modern microprocessor-based systems.

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.