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Hook0 vs Convoy: catalog facts
Hook0	Convoy
Freemium Free hosted plan with no credit card required, plus paid plans.	Freemium Can be self-hosted; Convoy Cloud is a hosted option.
Web, Self-hosted	Web, Self-hosted
Handles retries and HMAC signing of outgoing webhooks Hosted in the EU with a free plan	Retries, signing and rate limiting for webhook delivery Handles both incoming and outgoing webhooks
SSPL licence is source-available, not open source Aimed at developers adding webhooks to their own product	Requires running PostgreSQL and supporting services when self-hosted Aimed at developers building webhook features, not end users
Self-hosted, Hosted service	Self-hosted, Hosted service
Closed source	Open source
License: SSPL-1.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
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.