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smee.io vs ngrok: catalog facts
smee.io	ngrok
Free Free to use.	Freemium Free to start, with paid plans for more features.
Web, Command line	Windows, macOS, Command line
No need to open ports or run a tunnel Built-in support in Probot GitHub Apps	Public URL for a local app in one command Useful for receiving webhooks during development
Needs the smee client running locally to forward events Intended for development, not production traffic	Traffic is routed through ngrok's service Product has grown into a broad commercial platform beyond simple tunnels
Web application, Hosted service	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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