Click the icon and enter the URL (or a partial string) of the request you want to intercept.
Since version 117, Chrome has included a built-in feature called that replicates much of what third-party tampering tools do. How to use it: Open DevTools ( F12 ) and go to the Network tab. Right-click any request and select Override content . Select a local folder to store these overrides.
Due to Chrome's API restrictions ( chrome.webRequest ), direct in-browser modification is often restricted. However, several extensions and tools bridge this gap, providing functionality similar to the classic Tamper Data. 1. Tamper Dev (The Modern Successor) tamper data chrome
Chrome & Firefox Extension to modify HTTPs requests & responses
google/tamperchrome: Tamper Dev is an extension ... - GitHub Click the icon and enter the URL (or
Testing authentication tokens (like JWTs), changing User-Agents, and bypassing geographic restrictions during development. 3. Tamper Chrome (by Google)
: Audit communication between different browser windows or frames. Right-click any request and select Override content
While dedicated proxy tools like OWASP ZAP or Burp Suite are industry standards, Google Chrome provides powerful built-in features and extensions that allow you to tamper with data directly inside the browser. What is Data Tampering in a Browser?
When browser-based tools fall short—especially when dealing with complex WebSockets, certificate pinning, or multi-browser testing—dedicated interception proxies are required. OWASP ZAP (Zed Attack Proxy)
For professional security auditing, browser-based tools can sometimes fall short. If you need to intercept every single packet, break SSL/TLS encryption seamlessly, and repeat requests in a dedicated sandbox, you should route Chrome's traffic through a local proxy. 1. Burp Suite (Community or Professional)
Testing how an application handles incorrect, malformed, or unusual API requests.