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ngrok vs sish: catalog facts
ngrok	sish
Freemium Free to start, with paid plans for more features.	Free Free and open source under the MIT licence.
Windows, macOS, Command line	Linux, Self-hosted, Command line
Public URL for a local app in one command Useful for receiving webhooks during development	Works with the standard SSH client, no extra software HTTP, WebSocket and TCP tunnels plus SNI routing
Traffic is routed through ngrok's service Product has grown into a broad commercial platform beyond simple tunnels	Needs a public server and domain to self-host Configuring DNS and certificates takes some effort
Downloadable app, Hosted service	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.