Apps similar to PortPlay include tunnl.gg, which is open source and free for personal use. Other options are ngrok, Portmap.io and playit.gg. In total there are four Localhost Tunnel Services like PortPlay for Mac, Windows, Linux and the web.
Securely expose local web servers online with instant public URLs, no installation, automatic HTTPS, SSH-based tunneling, random subdomains, and zero configuration, enabling fast, temporary access for development, testing, demos, and seamless integration.
ngrok exposes local servers behind NATs and firewalls to the public internet over secure tunnels.
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Port forwarding service for exposing your local PC to Internet from behind firewall or without real IP address. Uses OpenVPN or SSH encrypted tunnel from localhost to Portmap.io.
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