Charles 4 Network Packet Analysis and Debugging Tool Software

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Charles 4 Network Packet Analysis and Debugging Tool Software

An HTTP proxy/HTTP monitor/reverse proxy enables developers to view all HTTP and SSL/HTTPS traffic between their machines and the Internet. This includes requests, responses, and HTTP headers (including cookies and cache information).

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Charles is a web proxy (HTTP Proxy/HTTP Monitor) running on your own computer. Then, your web browser (or any other internet application) is configured to access the internet through Charles, and Charles can record and display all the data sent and received for you.

In web and internet development, you cannot see the content being sent and received between web browsers/clients and servers. Without this visibility, it is difficult and time-consuming to determine the exact location of the fault. Charles can easily view what is happening, so you can quickly diagnose and fix problems.

Charles makes debugging fast, reliable, and advanced; Save your time and frustration!

main features

SSL Proxy - View SSL requests and responses in plain text
Bandwidth limitation to simulate slower internet connections, including latency
AJAX debugging - viewing XML and JSON requests and responses in tree or text format
AMF - View the content of Flash Remote/Flex Remote messages in a tree format
Repeat request to test backend changes
Edit request to test different inputs
Breakpoints for intercepting and editing requests or responses
Verify HTML, CSS, and RSS/atom responses of records using W3C validators

SSL Proxy

Charles can act as an intermediary for HTTP/SSL communication, enabling you to debug the content of HTTPS sessions.

Bandwidth limitation

Charles simulates modem speed by effectively limiting bandwidth and introducing latency, so that you can experience the entire website (bandwidth simulator) like a modem user.

AJAX

Charles is useful for XML development in web browsers, such as AJAX (asynchronous Javascript and XML) and XML HTTP, as it allows you to view the actual XML flowing between the client and server. Charles natively supports JSON, JSON-RPC, and SOAP; Display each in a simplified tree format for easy viewing and debugging.

Flash

Charles is perfect for Adobe Flash developers as you can view the content of LoadVariables, LoadMovie, and XML loads. Charles also has native support for Flash Remote (AMF0 and AMF3).

Automatically configure browser and system proxy settings

Charles will automatically configure the browser's proxy settings on the following browsers:

Windows system proxy settings (including Internet Explorer and most other applications)
Mac OS X system proxy settings (including Safari and most other applications)
Mozilla Firefox (on all platforms)