tweak: mock and modify HTTP requests
Mock or modify your HTTP requests to test, develop and demo your web application
Intercept & modify HTTP(S) traffic: redirect URLs, modify headers, inject scripts, mock REST & GraphQL APIs, and more.
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🚀 Best Chrome extension to supercharge Web Development & QA. Trusted by 300,000+ developers.
👉 Requestly works directly in Chrome with beautiful, modern UI and team collaboration features. Popular features - Modify HTTP Headers, Override API Responses, API Client, API Mocking & HTTP Interceptor.
⭐️ Open Source - https://github.com/requestly/requestly/
🌟 Top Use Cases
→ A beautiful & privacy-friendly API-Client
→ Mock API Responses to build frontend when backend isn't ready
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Mock or modify your HTTP requests to test, develop and demo your web application
Modify HTTP request headers, response headers, and redirect URLs
Intercept Requests and add custom rules to modify request/response headers, block/redirect requests, modify query params.
Mock, modify, and replay API. Easy setup. No proxy needed. No code change required.
To modify ajax responses on any page
Adds the API mocker MOKKU to Chrome Developer Tools for seamless integration & testing.
A superb tool for effortless network control. Instantly redirect, block, or modify requests through a powerful yet clean UI.
This is by far my extension using which I modify headers and add/edit Scripts wherever required. Awesome Extension
This is my best go to extension during Header modification or adding Scripts. Excellent
amazing extension to mock / intercept responses
很不错
Superb tool. It makes it easy to redirect, block, or modify network requests without much setup. The UI is clean, and the features are powerful.
Great app to mock most of the http request, from intercepting to json testing
Using more than a year, and a game changer for testing various things, test local changes without actually running the full frontend on local.
As an Automation QA engineer, I’ve found Requestly to be a practical and flexible tool for modifying HTTP traffic directly in the browser. It fills a gap where dev tools and network proxies fall short, especially when you need to quickly mock API responses, bypass certain request conditions, or test edge cases on the fly. The ability to intercept and alter JSON response bodies without spinning up a local mock server is a major time-saver during exploratory testing or verifying frontend behavior against non-ideal backend scenarios. That said, the UI takes a bit of getting used to, and complex rules can become hard to manage if you work across multiple projects. I’d appreciate more structured rule grouping or export/import presets by workspace.
Very useful tools for Web Devs. Helps a lot !