How do I kill the process using port 5173?

On macOS & Linux, run: "kill -9 $(lsof -t -i:5173)". On Windows PowerShell (as Admin), run: "Stop-Process -Id (Get-NetTCPConnection -LocalPort 5173).OwningProcess -Force".

Why am I getting "port 5173 already in use" (EADDRINUSE)?

This occurs when another background instance of vite, node or a zombie process is already bound to port 5173. Use the kill commands above to free the port immediately.

Web & Dev

Risk: Low

Port 5173 — Vite Dev Server (Vue, Svelte, React)

Q: Is Port 5173 safe to expose to the public internet?

Risk level is Low. Local development server. If Vite switches to 5174 or 5175, an existing Vite or background process is still bound to 5173.

Port 5173 is the default port assigned by the Vite build tool and development server for modern frontend frameworks (Vue 3, Svelte, React, Solid).

PORT NUMBER

5173

PROTOCOL

TCP

DEFAULT PROCESS

vite, node

FIREWALL TARGET

5173/tcp

Instant Terminal Fixes for Port 5173

macOS & Linux Terminal

1. Check who is listening on port 5173:

lsof -i :5173

2. Kill process occupying port 5173 (EADDRINUSE fix):

kill -9 $(lsof -t -i:5173)

3. UFW Firewall Allow rule:

sudo ufw allow 5173/tcp

Windows PowerShell (Admin)

1. Check listening port:

Get-NetTCPConnection -LocalPort 5173

2. Force kill process on port 5173:

Stop-Process -Id (Get-NetTCPConnection -LocalPort 5173).OwningProcess -Force

3. Docker Port Forwarding Mapping:

docker run -p 5173:5173 -d my-vite-app

Common Error Encountered

Port 5173 is in use, trying another one... -> http://localhost:5174/

Security Advisory & Hardening

Local development server. If Vite switches to 5174 or 5175, an existing Vite or background process is still bound to 5173.

Frequently Asked Questions

Port 5173 Questions & Answers

Common questions regarding default services, kill commands, and firewall configurations.

Port 5173 is commonly used for Vite Dev Server (Vue, Svelte, React). Port 5173 is the default port assigned by the Vite build tool and development server for modern frontend frameworks (Vue 3, Svelte, React, Solid).

Explore Other Developer Ports

View All Ports Directory

Port 3000React Port 8080HTTP Alternate Port 80HTTP (Hypertext Transfer Protocol)Port 443HTTPS (HTTP over TLS Port 5000Flask Port 8000Django