Software Alternatives, Accelerators & Startups

Requestly VS Fiddler

Compare Requestly VS Fiddler and see what are their differences

Requestly logo Requestly

A Powerful API Mocking and Testing Tool

Fiddler logo Fiddler

Fiddler is a debugging program for websites.
  • 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.

  • Fiddler Landing page
    Landing page //
    2023-09-19

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

Fiddler

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

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.

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

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 Requestly and Fiddler)
Developer Tools
39 39%
61% 61
Testing
100 100%
0% 0
Security
0 0%
100% 100
Localhost Tools
100 100%
0% 0

Questions and Answers

As answered by people managing Requestly and Fiddler.

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 Fiddler. 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 Fiddler

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

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, Requestly seems to be more popular. It has been mentiond 32 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 / 4 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 / 6 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 / 6 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 / 7 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 / 8 months 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 Requestly and Fiddler, you can also consider the following products

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

Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy

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.

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.

Postman - The Collaboration Platform for API Development

Teleconsole - Teleconsole is a free service to share your terminal session with people you trust.