Open Source Alternatives VS Requestly

Compare Open Source Alternatives VS Requestly and see what are their differences

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Open Source Alternatives

200+ open source alternatives to popular B2B tools

Requestly

A Powerful API Mocking and Testing Tool

Landing page //
2023-04-29

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

Open Source Alternatives

Website: btw.so
Pricing URL: -
$ Details: -
Platforms: -
Release Date: -

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Requestly

Website: requestly.com
Pricing URL: Official Requestly Pricing
$ Details: freemium
Platforms: Google Chrome Firefox Edge Safari Brave Opera Vivaldi Android Windows Linux Mac OSX MacOS
Release Date: 2021 January
Startup details
Country: United States
State: California
City: San Francisco
Founder(s): Sachin Jain, Sagar Soni, Sahil Gupta
Employees: 20 - 49

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Open Source Alternatives features and specs

Cost-effective
Open source alternatives are typically free to use, which can significantly reduce the overall software costs for individuals and businesses.
Customization
Users have the ability to modify the source code to better fit their specific needs, leading to highly customizable solutions.
Community Support
Open source projects often have strong communities where developers and users can share knowledge, support each other, and contribute to the software's development.
Transparency
The open nature of the source code allows users to see exactly what the software is doing, enhancing trust and security.
Rapid Innovation
The collaborative nature of open source projects often leads to faster innovation and the implementation of cutting-edge features.

Possible disadvantages of Open Source Alternatives

Limited Official Support
Open source alternatives may not have the same level of official support as proprietary software, which can be a challenge for some users.
Usability Issues
Some open source software may not have user-friendly interfaces, presenting a steeper learning curve for new users.
Compatibility
Open source software might not have full compatibility with proprietary systems or formats, which can cause integration issues.
Lack of Features
Certain open source alternatives may lack some features found in their proprietary counterparts, which might be critical for some users.
Security Risks
While transparency is a pro, it can also be a con if vulnerabilities are not promptly addressed due to the reliance on community contributions.

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
Zero Setup
Auto Capture Sessions
Network Logs
Console Logs

Analysis of Requestly

Overall verdict

Requestly is generally regarded as a good tool due to its comprehensive functionalities and ease of use. Its ability to seamlessly manage network requests makes it suitable for both beginners and experienced developers.

Why this product is good

Requestly is widely considered a valuable tool because it offers robust and flexible features for intercepting and modifying network requests. Developers and QA testers appreciate it for its ability to simulate and debug API calls efficiently. It is particularly useful for testing changes without altering the codebase and for working with web applications in development and production environments.

Recommended for

Developers looking to debug and test API endpoints.
Quality Assurance (QA) teams that require reliable testing tools for web applications.
Technical professionals who manage network traffic and need to modify or redirect requests effortlessly.
Anyone involved in web development who needs to simulate network conditions or test application behavior under different scenarios.

Open Source Alternatives videos

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Category Popularity

0-100% (relative to Open Source Alternatives and Requestly)

Open Source Alternatives

Requestly

Open Source

100 100%

Open Source

0% 0

Developer Tools

12 12%

Developer Tools

88% 88

Testing

0 0%

Testing

100% 100

SaaS

100 100%

SaaS

0% 0

Questions & Answers

As answered by people managing Open Source Alternatives and Requestly.

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 the primary audience of your product?

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 Open Source Alternatives and Requestly. For example, how are they different and which one is better?

Reviews

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

Open Source Alternatives Reviews

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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

Social recommendations and mentions

Based on our record, Requestly seems to be more popular. It has been mentiond 35 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.

Open Source Alternatives mentions (0)

We have not tracked any mentions of Open Source Alternatives yet. Tracking of Open Source Alternatives recommendations started around Jul 2021.

Requestly mentions (35)

Why You Need a Local-First API Client (With Hands-On Example)
If you want to try a local-first workflow, you can start using Requestly here: https://requestly.com. - Source: dev.to / 9 months ago
How to use Cursor to Generate API Testcases in Requestly
That’s where automation changes the game. By pairing Cursor, an AI-powered coding assistant, with Requestly's local-first API testing and mocking platform, you can offload the grunt work of writing tests to AI while keeping execution secure and reproducible on your own system. In this article, we’ll walk through how to set up Cursor with Requestly, generate test cases automatically, and run them end-to-end so that... - Source: dev.to / 9 months ago
These 20 Awesome API Clients Will Change How You Work with APIs
Requestly is a versatile browser extension and web client used to intercept, mock, and debug APIs in real-time—perfect for frontend developers. - Source: dev.to / about 1 year ago
Best Tools for GraphQL Development in 2025
Requestly is a powerful tool for modifying GraphQL responses, intercepting requests, and debugging API interactions. It allows developers to tweak request bodies, capture GraphQL traffic, and share sessions for easier debugging and collaboration. - Source: dev.to / over 1 year ago
How Not to Use AI in Software Development
Learn more at https://requestly.com/. - Source: dev.to / over 1 year ago