Open Source
Intercept & modify API responses on the fly
Test edge cases in your app by simulating API responses.
Override XHR/fetch Response
Using Requestly Modify Response rule, you can override the API responses triggered by XHR/fetch. No need to hardcode API responses in frontend code anymore.
Test error paths in your code
Modify API responses to trigger different error paths in your codebase and test the flows without changing anything on backend. e.g. Simulate Payment Timeout Issue, Item out of stock Issue, etc.
1-Click Sharing
Use-Cases in teams are very similar so Requestly makes it easier to share the rules with each other and collaborate faster.
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Application and use cases
Here’s how you can use Requestly’s Modify Response feature in your daily workflow
Static Response
Allows you to intercept and replace the original server response with a predefined fixed JSON or string response
Dynamic response
Gives ability to modify the server response programmatically using JavaScript. Write custom JavaScript code that runs on the intercepted response and manipulate its content.
Fake status code
Enables you to change the HTTP status code of a server response. By modifying the status code, you can simulate different server responses without actually altering the content.
Intercept & Modify HTTP Requests
Boost Your Web Development: Advanced Tools for Seamless Debugging.
Redirect URL (Map Remote)
Redirect a request URL to another URL. e.g. Load local scripts in the production sites for faster debugging.
Override API Response
Test edge cases in your app by simulating API responses. Override XHR, fetch and AJAX responses.
Inject Custom Scripts
Add Custom JavaScript (JS) to Hide unwanted sections, add action buttons, inject your own libraries, etc.
Modify HTTP Headers
Add, Delete, Override Request & Response Headers. Can be used to remove X-Frame-Options, Content-Security-Policy, CORS Issues, etc.
Modify Query Params
Insert, Modify or Delete query parameters for URLs (or matching pattern). Burst cache for a request by assigning it a newer version.
Delay HTTP Requests
Simulate lag / delay to the response from specific URLs in a single click by using Requestly’s Delay Request Rule. No need to modify actual server.
More from Requestly
An open-source platform that speeds up your web development cycle 10X faster.
Session Recording
Data rich bug reporting with Network logs, Console logs, Session Video and environment details. Share it with your Engineering team for faster debugging.
Mock API Server
Generate custom API responses without actually having a pre-built API or a backend server. Edit Content-Type, Status Code, Headers, and Response body easily on the Mock Server.
Web-based API Client
A comprehensive and web-based tool for modifying and testing APIs. You can test the Mock APIs you’re creating here to fast track your development lifecycle.
For the developers, by the developers ❤️
Modifying requests and/or responses is the killer feature area for me. Redirect JS in prod, generate mocks, modify headers, map local, map remote, SessionReplay, Load a local JS bundle, override scripts, etc. etc. etc. – TOTALLY worth it and very useful.
Requestly is an incredibly useful tool for developers working on a large team with multiple staging envs, or numerous app endpoints for various APIs in a local environment. The Sessions feature is especially useful for documenting solutions or sharing with others since it captures the relevant network traffic, and screen recording enables others to easily reproduce. Requestly combines all the power of complicated tools like Charles Proxy and Postman in one app/chrome extension. I highly recommend giving it a try if you haven’t already–it will make your dev work so much easier. (Summarized)
Great tool for frontend developers and QA tester for API response, redirects, mock data and much more. Requestly removes the dependency on waiting for backend API’s. Really useful to have in your frontend development environment.
Requestly’s browser extension is remarkably easy to use. As a full-stack developer, I often need to test data-intensive UI for edge cases and performance. Using Requestly I can do it very easily by mocking network requests, without needing code changes or database seeding.
We are using this extension in my current company as frontend developers to modify API responses and it works very very well. Highly recommend it.