Software Alternatives, Accelerators & Startups

Postman VS Fiddler

Compare Postman VS Fiddler and see what are their differences

Postman logo Postman

The Collaboration Platform for API Development

Fiddler logo Fiddler

Fiddler is a debugging program for websites.
  • Postman Landing page
    Landing page //
    2021-07-23
  • Fiddler Landing page
    Landing page //
    2023-09-19

Postman features and specs

  • User-Friendly Interface
    Postman features an intuitive and user-friendly interface that simplifies the process of constructing API requests and visualizing responses. This makes it accessible for both beginners and advanced users.
  • Collaboration
    Postman offers robust collaboration features, such as shared workspaces, collections, and real-time editing, enabling teams to work together more efficiently on API development.
  • Comprehensive Testing Tools
    Postman provides a suite of testing tools to create, automate, and manage test cases. It supports automated testing through its scripting environments, which ensure APIs perform as expected.
  • Extensive API Documentation
    Postman can automatically generate comprehensive API documentation, making it easier to maintain and share API specifications with stakeholders and other developers.
  • Mock Servers
    Postman allows users to create mock servers to simulate API responses. This is particularly useful for testing and development purposes when the actual API is not yet available.
  • Integration Capabilities
    Postman offers integrations with various CI/CD tools, version control systems, and other services like Jenkins, GitHub, and Slack, facilitating seamless integration into development workflows.

Possible disadvantages of Postman

  • Resource Intensive
    Postman can sometimes be resource-intensive, consuming substantial memory and CPU, which can impact the performance of your system, especially when dealing with large collections.
  • Steep Learning Curve for Advanced Features
    While Postman is generally user-friendly, some of its advanced features, like scripting and automation, can have a steep learning curve and might require additional effort to master.
  • Pricing
    Although Postman offers a free tier, many of its advanced features, such as enhanced collaboration tools and extended integrations, are locked behind paid plans, which may not be cost-effective for smaller teams or individual developers.
  • Dependency on Internet
    Some of Postman's features, particularly those related to collaboration and synchronization, require a stable internet connection, which can be a limitation in environments with poor connectivity.
  • Limited Native Support for Certain Protocols
    Postman primarily focuses on HTTP/HTTPS protocols and may offer limited or no native support for other protocols, which can be restricting for developers working with diverse sets of technologies.

Fiddler features and specs

  • Comprehensive Debugging
    Fiddler allows for detailed HTTP/HTTPS traffic inspection and debugging, making it invaluable for diagnosing and troubleshooting web applications.
  • Cross-Platform Compatibility
    Works on Windows, macOS, and Linux, providing flexibility to developers working in different environments.
  • Custom Scripting
    Supports custom scripts using FiddlerScript, enabling advanced functionalities and automation of repetitive tasks.
  • User-Friendly Interface
    Provides an intuitive and easy-to-use interface that helps users navigate and utilize its features effectively.
  • Web Debugging Proxy
    Acts as a proxy server that captures traffic between your computer and the internet, which is essential for debugging web applications.

Possible disadvantages of Fiddler

  • Learning Curve
    May require a period of learning and adaptation for users new to the tool or those who are not familiar with HTTP/HTTPS concepts.
  • Resource Intensive
    Can be resource-heavy, especially when capturing and storing large amounts of traffic data, which may slow down your computer.
  • Limited Mobile Support
    Although it can work with mobile devices, setup can be cumbersome and less straightforward compared to desktop debugging.
  • Documentation and Community
    While there is good documentation available, it may not cover all niche use cases, and community support can be hit or miss.
  • SSL Decryption
    Decrypting HTTPS traffic requires additional setup and can introduce security risks if not handled properly.

Postman videos

POST/CON 2018 workshop in review: Running Postman Collections

More videos:

  • Review - POST/CON 2018 workshop in review: Postman Collections
  • Tutorial - How to Share Postman Collections

Fiddler videos

Fiddler On The Roof, Faith on Film review

More videos:

  • Review - FIDDLER ON THE ROOF WEST END REVIEW | Georgie Ashford
  • Review - Fiddler on the Roof Review

Category Popularity

0-100% (relative to Postman and Fiddler)
API Tools
100 100%
0% 0
Developer Tools
88 88%
12% 12
APIs
100 100%
0% 0
Security
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 Postman and Fiddler

Postman Reviews

Top 20 Open Source & Cloud Free Postman Alternatives (2024 Updated)
As the digital landscape evolves, the significance of APIs (Application Programming Interfaces) has surged, facilitating seamless communication between various software applications. Postman has been a leading tool in this space, offering a comprehensive platform for API development, testing, and documentation. However, recent shifts in its pricing model and user experience...
Source: medium.com
Best Postman Alternatives To Consider in 2025
- Focus on specific needs: Does the tool excel at SOAP APIs or cater to microservices? - Resource usage: Does it handle complex projects without impacting system performance? - Script reusability: Does it allow for efficient code sharing across projects?3. Is Postman the best API tool?Not all-encompassing. While Postman is powerful, the "best" tool depends on your specific...
Postman Alternatives for API Testing and Monitoring
Some engineers turn to Postman for API testing and monitoring needs. However, Postman is a costly and limited solution. QA, DevOps and other engineers may find it lacks capabilities that can answer their needs. In this blog post, we provide 12 Postman alternatives built for the enterprise.
Beeceptor vs Postman
You cannot download request log. Although, you can use Postman APIs to query and retrieve.
Source: beeceptor.com
Top 15 MuleSoft Competitors and Alternatives
Postman is an API platform with the world’s largest public API hub that helps developers design, build, test, and iterate APIs. In 2022, Postman served over 20 million developers and 500,000 organizations.

Fiddler Reviews

Top 10 HTTP Client and Web Debugging Proxy Tools (2023)
Next right up is Fiddler. It is one of the most powerful and popular web debugging proxy tools. it can debug and troubleshoot endlessly. What you would come to like is that Fiddler is free and has lots of plug-ins you can use. Knowing it captures, analyze and record HTTP traffic between your device and the server, handling any embedded issues becomes easy.
12 HTTP Client and Web Debugging Proxy Tools
Fiddler is a cross-platform web debugging proxy. It can help manipulate web sessions, inspect HTTPS traffic, and monitor traffic between your computer and the Internet.
Source: geekflare.com
Comparing Charles Proxy, Fiddler, Wireshark, and Requestly
Fiddler is another popular web debugging proxy that runs on Windows. It provides developers with a range of features, such as HTTP/HTTPS traffic capturing, request modification, and performance testing. In addition to these features, Fiddler has a scripting engine called FiddlerScript, which allows for customizing the tool’s behavior. This scripting engine enables developers...
Source: dev.to
73 Best SEO tools 2021 – The Most Epic List You Shouldn’t Miss
The answer is simple – if you are looking for an SEO site tool that won’t freeze your browser (a common problem with most plugins), then Fiddler is your ultimate debugging tool.

Social recommendations and mentions

Based on our record, Postman seems to be more popular. It has been mentiond 30 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.

Postman mentions (30)

  • Best API Mocking Platforms in 2024
    Postman (postman.com) is a comprehensive API platform that goes beyond mocking, offering a full suite for API development, testing, and monitoring. With its mock server feature, Postman enables teams to simulate responses for various endpoints, making it a popular choice for end-to-end API management. - Source: dev.to / 6 months ago
  • 10 Best API Mocking Tools (2024 Review)
    Postman is a widely used tool for API testing and interaction. Its "Mock Servers" feature lets you create a mock version of your API, returning specific responses for testing. While useful, Postman may lack advanced mock server management features compared to other tools. - Source: dev.to / 6 months ago
  • The 3 Best Tools for API Design for Software Architects
    Postman is a widely adopted tool for API design and development, offering an intuitive interface for creating, testing, and documenting APIs. It simplifies the API design process, allowing architects to quickly prototype and refine their designs. - Source: dev.to / 9 months ago
  • How to use ApyHub to Build a Serverless Function in NodeJs?
    Once deployed, thoroughly test your serverless function to confirm it behaves as expected. Invoke the function manually from the cloud platform’s console or use tools like Postman, Apidog, or Fusion ( Fusion is ApyHub’s own API Client ) to test HTTP-triggered functions. Ensure the function executes correctly and handles errors gracefully. - Source: dev.to / about 1 year ago
  • Mastering Microservices: A Hands-On Tutorial with Node.js, RabbitMQ, Nginx, and Docker
    To test the API endpoints, you can use Postman. Download and install Postman from Postman's official website. - Source: dev.to / about 1 year ago
View more

Fiddler mentions (0)

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

What are some alternatives?

When comparing Postman and Fiddler, you can also consider the following products

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.

Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy

MuleSoft Anypoint Platform - Anypoint Platform is a unified, highly productive, hybrid integration platform that creates an application network of apps, data and devices with API-led connectivity.

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

DreamFactory - DreamFactory is an API management platform used to generate, secure, document, and extend APIs.

Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.