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Webhook Relay vs Tunnelmole: catalog facts
Webhook Relay	Tunnelmole
Freemium Free plan with 150 webhooks a month; paid plans for higher volume.	Freemium Free and open source; the hosted service also has a pricing page for paid options.
Web, Command line	Windows, macOS, Linux, Self-hosted, Command line
Delivers webhooks to localhost and private networks Durable retries during outages	Single command gives a local port a public HTTPS URL Installs via a script or npm
Hosted service that requires an account Free plan limited to 150 webhooks a month	Windows without WSL requires Node.js Pricing details for the hosted service are not documented in the research
Downloadable app, Hosted service	Downloadable app, Self-hosted, Hosted service
Closed source	Open 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 September 23, 2026

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