TrapdoorFree ngrok Alternative

Quick Start ​

# Install (macOS/Linux)
curl -fsSL https://trapdoor.sh/install.sh | sh

# Expose your local server
trapdoor 3000

You'll get a URL like https://abc123.trapdoor.sh that forwards to your localhost:3000.

What is Trapdoor? ​

Trapdoor is a localhost tunneling service that exposes your local development server to the internet. It creates a secure HTTPS tunnel from a public URL to your machine, allowing you to share your work, test webhooks, and demo applications without deploying to a server.

How It Works ​

1. Install the Trapdoor client on your machine
2. Run trapdoor 3000 to expose your local port
3. Share your public URL like https://myapp.trapdoor.sh

Your local server is now accessible from anywhere in the world through an encrypted tunnel.

Use Cases ​

• Webhook Testing - Receive webhooks from Stripe, GitHub, Slack directly on localhost
• Mobile Development - Test your app on real devices without deploying
• Client Demos - Show work-in-progress to clients without hosting
• API Development - Let teammates test your local API endpoints
• IoT Projects - Connect IoT devices to your development machine

Why Trapdoor over ngrok? ​

The ngrok Problem ​

ngrok's free tier displays an annoying interstitial warning page that visitors must click through before reaching your site. This breaks webhook integrations, ruins client demos, and looks unprofessional. Removing it costs $8/month.

Trapdoor never shows an interstitial page - not even on the free tier.