Port 7860 (Gradio / Stable Diffusion WebUI)

Default port of Gradio apps, including AUTOMATIC1111 Stable Diffusion WebUI.

Registered (user) port, 1024-49151 TCP Development tools Localhost or LAN only

What port 7860 is used for

Default port of Gradio apps, including AUTOMATIC1111 Stable Diffusion WebUI.

Localhost or LAN only. --listen or share links put an unauthenticated app online; extensions can run code. Use --gradio-auth or keep local.

Port 7860 is in the registered range and has no IANA assignment. The usage above is unofficial but widespread.

Linux: is anything listening on TCP 7860?

sudo ss -tlnp 'sport = :7860'

Linux / macOS: which process owns the port

sudo lsof -nP -i :7860

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':7860 '

Windows (Command Prompt)

netstat -ano | findstr :7860

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7860 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 7860

From Windows

Test-NetConnection HOST -Port 7860

ufw

sudo ufw deny 7860/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 7860 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 7860 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 7860' -Direction Inbound -Protocol TCP -LocalPort 7860 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.