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Start a Hello World server and expose it via various tunnels.
🔧 Control Panel
1. Runner OS (select one OS)
Ubuntu (ubuntu-latest)
macOS (macos-14)
Windows (windows-latest)
2. Tunnel (select one tunnel)
Cloudflare Tunnel
localhost.run
ngrok
Tailscale
Tor
Tunnelmole
3. Power (power up your runner)
ON (check this box to start the sandbox)
Tip
Change the power or options anytime to create a fresh server. You never need to open another issue.
4. Optional Config
You can override the defaults here. The parser will use these values if the block is present. If the block is removed or invalid, defaults apply (Port: 8080, Minutes: 40).
# Port the Hello World server will listen onport: 8080# Minutes to keep the runner alive (workflow hard-cap is 80)minutes: 40
Common Sense
Public URL = public. Don’t serve secrets. Sessions are ephemeral and auto-stop.
Activity
github-actions commentedon Sep 11, 2025
Tunnel Sandbox · Status
OS:
Windows| Tunnel:tor| App Port:8080Access Method ‡
Clickable Link (for Tor Browser):
Copyable Address:
‡ needs Tor Browser at your access point
Max runtime is capped at 80 minutes.
Edit this issue to change options (cancels the previous run).