Charles AMF dump
File type: Various data file
An amf3 file is an AMF dump created for the Charles Web Debugging Proxy.
It stores AMF data handled by Charles during HTTP or HTTPS debugging.
File type category:
Various data file
Date updated: October 9, 2026
The amf3 file extension is associated with the Charles Web Debugging Proxy from XK72. Charles is a Microsoft Windows application that monitors, analyzes, and controls HTTP and SSL/HTTPS traffic.
An amf3 file contains a dump of Action Message Format (AMF) data. It is a Charles-specific dump file used when examining AMF messages, rather than a general-purpose document format.
The associated MIME type is application/x-charles-amf.
Open an amf3 file with the Windows version of Charles Web Debugging Proxy. The file is intended to be viewed within Charles, which can interpret the AMF dump and display its contents.
If Charles does not open the file automatically, use its file-opening command or associate the amf3 file extension with Charles in Windows.
Open the Charles amf3 file in Charles Web Debugging Proxy to inspect the AMF data and use any export options provided by that application if another representation is required.
Software apps that create amf3 files:
Microsoft Windows
Software applications that handle other tasks involving amf3 files:
Microsoft Windows