port-claim

If a port is in use, port-claim stops the process using it.
v3.0.0 URL: https://unpkg.com/port-claim@3.0.0/index.mjs
OpenBrowse Files
portport-availabilityprocessport-conflictkill-portkill-port-processdetect-portensure-port-openensure-port-availableclaim-portport-claim

@oxog/port-terminator

Cross-platform utility to terminate processes on ports with zero dependencies
v1.0.0 URL: https://unpkg.com/@oxog/port-terminator@1.0.0/dist/index.js
OpenBrowse Files
portkillterminateprocesstcpudpcross-platformzero-dependencycliport-killerport-managerport-scannerlsofnetstatdevelopment-toolsdevtoolsnodejstypescriptprocess-managementnetworkport-availabilitykill-portfree-portport-terminator

@vcgtz/port-checker

CLI tool to check if a port is available on localhost
v0.1.0 URL: https://unpkg.com/@vcgtz/port-checker@0.1.0
OpenBrowse Files
cliportport-checkerport-availabilitynetworklocalhosttcpcheck-portavailable-port