Requestly VS Responsively

Compare Requestly VS Responsively and see what are their differences

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Responsively

Develop responsive web-apps 5x faster!

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.

Landing page //
2023-10-16

A web browser that aids responsive web app development. Preview all target screens in a single window side-by-side. Brings down your development time. Use your already-familiar dev-tools from the browser. No additional learning curve!

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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Responsively

Website: responsively.app
Pricing URL: -
$ Details: free
Platforms: Windows Mac OSX Linux
Release Date: 2020 May

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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

Responsively features and specs

Multi-device Preview
Allows simultaneous preview of a website on different device screen sizes, facilitating responsive design testing and debugging.
Open Source
Being an open-source project, it allows for community contributions, transparency, and no licensing fees.
Sync Scrolling and Clicks
Enables synchronized scrolling and clicking across all previews, making it easier to test interactions and layouts uniformly.
Customizable Viewports
Users can add, remove, or adjust predefined viewports to match specific device requirements or test cases.
Lightweight and Fast
Designed to be performant and quick, reducing the overhead on development machines and improving productivity.
Cross-platform
Compatible with multiple operating systems, including Windows, macOS, and Linux, ensuring broader user adoption.

Possible disadvantages of Responsively

Limited Browser Support
May not offer the same level of browser compatibility testing as dedicated tools like BrowserStack or Sauce Labs.
Steep Learning Curve
New users might require some time to get accustomed to the interface and functionalities compared to more straightforward testing tools.
Resource Intensive
Running multiple device previews simultaneously can consume considerable system resources, which might slow down other tasks.
No Cloud Integration
Lacks integration with cloud services for remote testing, unlike some paid alternatives.
Dependence on Electron
As an Electron-based app, it might have a larger memory footprint compared to native applications.

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.

Requestly videos

+ Add

Get Started with Requestly

Responsively videos

+ Add

Responsively App Demo

Category Popularity

0-100% (relative to Requestly and Responsively)

Requestly

Responsively

Developer Tools

57 57%

Developer Tools

43% 43

Design Tools

0 0%

Design Tools

100% 100

Testing

100 100%

Testing

0% 0

APIs

100 100%

APIs

0% 0

Questions & Answers

As answered by people managing Requestly and Responsively.

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 Requestly and Responsively. 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 Requestly and Responsively

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

Responsively Reviews

M. Inam

almost 5 years ago

Open source and best

🏁 Competitors: Sizzy, Polypane

Social recommendations and mentions

Responsively might be a bit more popular than Requestly. We know about 46 links to it since March 2021 and only 35 links to Requestly. 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 (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 / 8 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 / 8 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

Responsively mentions (46)

Best Free Tools for Frontend Developers to Speed Up Workflow
🔍 5. Responsively App Testing responsiveness on multiple devices? Responsively App is an open-source tool that lets you preview your site across devices side-by-side. - Source: dev.to / about 1 year ago
Polypane, The browser for ambitious web developers
To save other readers a click: https://responsively.app/. - Source: Hacker News / over 1 year ago
22 Unique Developer Resources You Should Explore
URL: https://responsively.app What it does: View your website across multiple devices and screen sizes simultaneously. Why it's great: Perfect for real-time responsive testing — save time and effort! - Source: dev.to / over 1 year ago
Responsively App: The Ultimate Tool for Web Developers on Windows
You can download Responsively App from their official website. - Source: dev.to / over 1 year ago
My Hacktober Journey as a Contributor
Hacktoberfest has been an incredible ride! As a maintainer of the Responsively App, I’ve had the privilege of witnessing developers come together to support and improve our open-source project. Seeing the growth in contributions this year has been both surprising and inspiring. It’s been a chance for us to engage with developers who are as excited about improving Responsively as we are. - Source: dev.to / over 1 year ago