Expose localhost to the internet
in seconds
Share any local HTTP server with a permanent public URL. No port-forwarding, no router config — just run the app and go.
✓ Logged in as you@example.com
✓ Your subdomain: abc123.localhosttunnel.com
› Local port: 8080
✓ Tunnel started — forwarding requests
GET /api/users → localhost:8080 200 12ms
POST /api/login → localhost:8080 200 8ms
How it works
Up and running in under two minutes
Create a free account
Register with your email. A permanent subdomain like abc123.localhosttunnel.com is instantly assigned to your account.
Download the desktop app
Download the portable desktop client for your OS — no installation required. Just run it.
Start tunneling
Open the app, log in, enter the port your local server is running on, and click Start. Your tunnel is live.
Everything you need
Built for developers who need to share their work fast
Instant Public URL
Get a permanent subdomain assigned the moment you register. Share it with anyone — it never changes.
No Configuration
Just enter your local port and click Start. No YAML files, no port-forwarding rules, no firewall changes.
Secure by Default
Every connection is authenticated with JWT. Only your desktop app can receive tunnel traffic for your subdomain.
Any HTTP Service
Tunnel any HTTP server — Node, Python, Java, Go, PHP. If it listens on a port, it works.
Multiplexed Requests
Handles concurrent requests over a single WebSocket connection. No request queuing, no dropped traffic.
Auto-Reconnect
If your connection drops, the desktop app reconnects automatically. Your subdomain stays the same.
How we keep it free
LocalhostTunnel is completely free with no request limits, no paywalls, and no hidden tiers. Here is how we cover the operational costs.
Ads in the desktop app
The desktop client displays small, non-intrusive ads. This is the primary way we fund server infrastructure, bandwidth, and ongoing development.
No VC money, no data selling
We do not sell your data or traffic metadata. Ads are the only monetisation model — what you see is what it is.
Built by developers, for developers
This is a side project built out of frustration with expensive tunneling tools. Keeping it free is a deliberate choice, not a temporary promotion.
Download the desktop app
Portable — no installation needed. Just download and run.
After downloading: chmod +x *.AppImage && ./LocalhostTunnel-1.1.0.AppImage (Linux) | Double-click (Windows/macOS)
Ready to share your localhost?
Create a free account and get your permanent subdomain in seconds.