Sign up ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Wireshark is good, but it doesn't allow you to change the content of the packet.

Is there a tool to do this job?

share|improve this question
This StackOverflow question may be helpful:… – Trey Hunner May 11 '10 at 5:04

2 Answers 2

There's a Firefox addon called TamperData that can accomplish this.

share|improve this answer

Try fiddler

From - "Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing data."

share|improve this answer
Does it allows you to modify the data? – fms May 11 '10 at 3:36
Yes, you can change the data. Here are some examples: – dsolimano May 11 '10 at 12:15
It modified the data within a browser,how to do it without involving a browser? – fms Sep 13 '10 at 13:25

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.