Zrok

Judgement

What it is

Complete system

What it does

Shares local web services, TCP or UDP services and folders publicly or privately through a zero-trust overlay network, without opening firewall ports.

Adopt it when

You need to expose a local service or folder to collaborators and want a self-hostable ngrok-style option built on OpenZiti.

Watch out

Self-hosting means running OpenZiti infrastructure, and the free zrok.io service has usage limits.

Ready for

Production-ready

Runs as

Command line, cloud service and self-hosted server

Built with

Go, OpenZiti, PostgreSQL and TypeScript

How established

Established: started 4 years ago, latest release v2.0.9.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Zrok → Go → runs on a microchip

How compilers were built, back to punched paper tape

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