Requestly
A local-first API client and HTTP interceptor for building, testing, and mocking APIs directly in your browser or desktop.
What is Requestly?
Requestly is a free and open-source tool that functions as both an API client and an HTTP interceptor. It allows developers to build, test, intercept, modify, and mock HTTP requests and responses, streamlining API development and frontend testing workflows. It solves the problem of fragmented tooling by combining client and interceptor capabilities into a single, local-first application.
Frontend and backend developers, QA engineers, and DevOps professionals who need to test, debug, and mock APIs during development or in CI/CD pipelines.
Developers choose Requestly for its local-first approach that prioritizes data privacy, its ability to replace multiple paid tools (like Postman and Charles Proxy), and its comprehensive feature set for API mocking and HTTP interception in one integrated solution.
Overview
Free and open-source API Client & Interceptor.
Use Cases
Best For
- Testing and debugging REST APIs with a local-first client
- Intercepting and modifying HTTPS traffic from browsers and mobile apps
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