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Hookdeck vs Hook0

This is not an apples-to-apples comparison. Hookdeck and Hook0 solve different problems.

Hookdeck is an inbound webhook proxy. It sits between third-party services (Stripe, GitHub, Shopify) and your application. It retries, deduplicates, and routes incoming webhooks.

Hook0 is an outbound webhook server. It sends webhooks from your application to your customers' endpoints, with retry logic, signatures, and delivery tracking.

Many teams use both: Hook0 for sending, Hookdeck for receiving.

Inbound vs outbound​

Legend: ✅ = Full support | ⚠️ = Partial support | ❌ = Not available

Feature comparison​

FeatureHookdeckHook0
SaaS✅✅
Self-hosting❌✅ Full feature parity
Open-Source❌ Proprietary✅ SSPL-1.0
Inbound webhook proxy✅ Core focus❌
Outbound webhook delivery⚠️ Secondary✅ Core focus
HMAC signature verification✅ Verify incoming✅ Sign outgoing
Automatic retries✅✅ Fixed schedule + jitter
Dead letter queue✅✅
Request transformation✅❌
Webhook deduplication✅✅ Via event IDs
Event type hierarchy❌✅ Dot-notation
Multi-tenant filtering❌✅ Label-based
Custom retry schedules✅✅
Delivery logs & replay✅✅
REST API✅✅
Local development tunnel✅ CLI tool❌
Self-funded❌ $5.5M raised✅ Fully self-funded

Funding data last verified: January 2025

Pick Hookdeck if​

  • You're receiving webhooks from third-party services (Stripe, GitHub, Twilio, etc.)
  • You need to transform incoming webhook payloads before they hit your application
  • You want a local development tunnel for testing webhooks locally
  • You need to fan out a single incoming webhook to multiple internal services

Pick Hook0 if​

  • You're sending webhooks to your customers (you're the SaaS platform)
  • You need multi-tenant webhook routing (different customers get different events)
  • You want to self-host your webhook infrastructure
  • You need event type hierarchies and label-based filtering
  • You want open-source with no vendor lock-in

Use both​

If you're a SaaS platform that both receives webhooks from providers (payment events from Stripe, code events from GitHub) and sends webhooks to your own customers, use Hookdeck for inbound and Hook0 for outbound:

Pricing​

Hookdeck charges per request. At high volume, costs scale linearly with webhook traffic.

Hook0 offers both cloud pricing (per event) and self-hosting (free, you pay for infrastructure). If you process millions of events monthly, self-hosting Hook0 eliminates per-message costs entirely.

Further reading​