Requestly

Requestly

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Requestly is an open-source browser tool to intercept, modify, mock, and test HTTP requests and responses, manage API contracts, and record bug reports.

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Requestly is a comprehensive HTTP request modification and testing tool designed for developers and quality assurance professionals. The platform enables users to intercept, modify, and analyze HTTP requests and responses directly within their browser, streamlining the debugging and testing process for web applications.

The core functionality of Requestly centers on HTTP header manipulation, allowing developers to edit request and response headers with precision. Beyond basic header modifications, the tool supports a wide range of advanced capabilities including URL redirects for testing across different environments, API response mocking, script injection, and request rerouting. Users can create mock APIs, simulate various HTTP status codes, and test how their applications respond to different network conditions and API behaviors without requiring backend modifications.

A key strength of Requestly is its collaborative approach to development workflows. The platform includes team-sharing features that enable developers to create rules and share them with colleagues, facilitating consistent testing practices across team members. This collaborative functionality makes it particularly valuable for larger development teams working on complex applications that require coordinated testing efforts.

The interface is designed with accessibility in mind, featuring an intuitive user experience suitable for both beginners and experienced developers. Developers can leverage regex-based URL targeting for precise rule application, allowing complex matching patterns across different websites and applications. Request matching can be configured based on specific URLs, domains, or URL patterns, providing flexibility in determining which HTTP traffic should be affected by modifications.

Requestly operates with a free tier that removes common limitations found in other HTTP modification tools. Users can create unlimited header modifications at no cost, with no advertisements cluttering the interface. This accessibility approach removes barriers to entry for developers exploring HTTP testing and modification techniques. The tool supports the modern Manifest V3 extension architecture, ensuring compatibility with current and future versions of Chromium-based browsers.

This description was generated by AI (artificial intelligence). AI can make mistakes. Check important info.


Requestly is an open-source tool for API Mocking, Testing, and Debugging. It serves as a valuable companion for developers, offering the following features: * Send API requests using the API Client * Create, manage, and collaborate on API contracts * Override APIs by modifying headers, request bodies, response bodies, status codes, and adding delays * Mock API responses * Record Bug Reports

Website: requestly.com

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