What it does
CurrPorts displays local TCP and UDP endpoints, process details and connection information, with export and connection-management controls.
Run CurrPorts to inspect local TCP and UDP endpoints with their owning process, path, user and creation details. Select columns and sort the list before copying or exporting rows to HTML, XML or tab-delimited text. In version 2.80, seeing command lines for all processes requires Administrator access and the 64-bit build on a 64-bit system. The same interface can close TCP connections or terminate processes, so distinguish those actions from collecting a snapshot. The guide also recommends disabling Use DNS Cache For Host Names during long automatic-refresh sessions because of a Windows API memory leak. UDP port listings are not a complete UDP activity history.
Strengths
- Endpoint listings with detailed process ownership
Sources
- CurrPorts: Monitoring TCP/IP network connections on Windows (Oct 26, 2026)