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localhost.run vs smee.io: catalog facts
localhost.run	smee.io
Freemium Free tunnels with random domains; custom domains cost $9 per month billed annually.	Free Free to use.
Command line	Web, Command line
Works with the standard SSH client, nothing to install No sign-up for free tunnels	No need to open ports or run a tunnel Built-in support in Probot GitHub Apps
Free domains are not stable between sessions Custom domains require a paid subscription	Needs the smee client running locally to forward events Intended for development, not production traffic
Hosted service	Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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