SSL Proxying
Charles can act as a man-in-the-middle for HTTP/SSL
communication, enabling you to debug the content of your HTTPS
sessions.
Bandwidth Throttling
Charles simulates modem speeds by effectively
throttling your bandwidth and introducing latency, so that you can
experience an entire website as a modem user might (bandwidth
simulator).
AJAX
Charles is useful for XML development in web
browsers, such as AJAX (Asynchronous Javascript and XML) and XMLHTTP,
as it enables you to see the actual XML that is flowing between the
client and the server. Charles natively supports JSON, JSON-RPC and
SOAP; displaying each in a simplified tree format for easy viewing
and debugging.
Flash
Charles is great for Adobe Flash developers as you
can view the contents of LoadVariables, LoadMovie and XML loads.
Charles also has native support for
Flash
Remoting (AMF0 and AMF3).
Autoconfigure Browser & System Proxy Settings
Charles will autoconfigure your browser's proxy
settings on the following browsers:
- Windows system proxy settings (includes
Internet Explorer and most other applications)
- Mac OS X system proxy settings (includes
Safari and most other applications)
- Mozilla Firefox (on all platforms)