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zrok vs Microsoft Dev Tunnels: catalog facts
zrok	Microsoft Dev Tunnels
Freemium Open source for self-hosting; NetFoundry also runs it as a hosted service.	Free The CLI is free to install; usage terms are described in Microsoft's documentation.
Self-hosted, Command line	Windows, macOS, Linux, Command line
Private sharing without exposing a public endpoint Shares files and web content as well as HTTP services	Access control over who can reach a tunnel Group policy support for organizations
Requires an invite and enabling an environment before sharing Self-hosting involves running OpenZiti infrastructure	Traffic is relayed through Microsoft's service Proprietary
Downloadable app, Self-hosted, Hosted service	Downloadable app, Hosted service
Open source	Closed source
License not stated	License not stated
Account 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 October 1, 2026

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