Open source alternatives to ngrok

One project on starwire does the same job. Ranked by how much of what ngrok does each one covers, read from its README and website. Ties go to the most active.

What ngrok does

Expose a local server with a public URLcore
Secure tunnelscore
Custom domains
Webhook inspection and replay
Authentication on endpoints
TCP and TLS tunnels

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

Project	Covers	Stars	Commits, 12 weeks	Last release	Closed vs opened	Setup	License
frpReverse proxy for exposing local servers behind NAT or firewalls	Same job, different way88%	111k+103	48	10 days ago	100%	Needs a server	Apache-2.0
Covers all 2 core jobs. Not shown: Webhook inspection and replay.See the evidence Expose a local server with a public URLcoreYesexpose a local server located behind a NAT or firewall Secure tunnelscoreYesEncryption and Compression Custom domainsYesAccessing Internal Web Services with Custom Domains in LAN Webhook inspection and replayNot shownNeither the README nor the website mentions it. Authentication on endpointsYesRequire HTTP Basic Auth (Password) for Web Services TCP and TLS tunnelsYesIt currently supports TCP and UDP

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