zrok
Free plan for zero-trust public and private sharing: 5 GB a day, 25 environments, 50 shares.
Dev Tools
What you get
Open-source tunnels to share local websites, files and TCP/UDP services publicly or privately (built on OpenZiti by NetFoundry): 5 GB a day, 50 shares.
How to get it
Click Get Started under Free on zrok.io/pricing.
What it requires
No credit card required.
The catch
Public shares from unverified free accounts show an anti-phishing interstitial the first time someone visits; adding a card removes it. Community support only.
From the official page · checked Oct 29, 2026