Charles Proxy

Features

• Network message analysis – Charles shows full messaging sources of all HTTP and similar TCP-based communications that pass via its proxy port.
• XML, JSON, SOAP interpretation – structured viewers that translate the raw HTTP content into a tree format for analysis.
• HTML, CSS, JavaScript viewers – providing marked-up/formatted/unminified text content display
• SSL debugging – allowing decryption of encrypted data to review/troubleshoot the transmitted content.
• Bandwidth throttling – to simulate slower internet speeds by slowing down bandwidth/speed and introducing latency, for example to simulate a slower 3G connection.
• Flash development aids – including Action Message Format content analysis.
• Debugging HTTP connections from mobile devices – providing a proxy between an iOS or Android device and a remote site, to debug HTTP connections and behavior that only occur on devices, including debugging video streaming issues, airplay issues, etc. that cannot be tested in the iOS simulator.
• Remote file debugging – ability to swap out a remote file for a local file to aid debugging a remote site without requiring access to the server files.
• Debugging aids – such as repeating URL post requests to test server changes, adding breakpoints, or editing request variables.
• Validation function – ability to right-click any proxy request, and provide validation feedback using the W3C Markup Validation Service, useful for content the W3C service otherwise cannot access directly.

  Browser support

• IE
• Chrome
• Firefox
• Safari