Hook0 vs Hookdeck Open-Source Webhook Platform Alternative
Looking for a Hookdeck alternative? Hook0 is a 100% open-source, EU-hosted webhook platform with no vendor lock-in. Hookdeck is a webhook gateway. They solve different problems. Here is what each one actually covers.
Platform vs Gateway
Hook0 and Hookdeck solve different problems. One sends webhooks, the other proxies them.
Hook0: Webhook Platform
- Send webhooks to your users' endpoints
- Manage subscriptions, event types, retries
- HMAC signatures, delivery logs, subscription management
- One API call to trigger an event
- Open-source, self-hostable
Hookdeck: Webhook Gateway
- Proxy layer between senders and receivers
- Adds retries and queuing to existing webhooks
- Does not generate or send webhooks
- Closed-source, cloud-only
- No self-hosting option
Side by Side
| Feature | Hook0 | Hookdeck |
|---|---|---|
| Type | Full webhook platform | Webhook gateway / proxy |
| Open-Source | Yes (SSPL-1.0) | No (closed-source) |
| Self-Hosting | Yes (Docker / K8s) | No |
| Send Webhooks | Yes (core feature) | No (proxy only) |
| Subscriber Management | Built-in portal | Not applicable |
| HMAC Signatures | Generated automatically | Verification only |
| Event Type Management | Full event type registry | No |
| Free Tier | 100/day free, EU-hosted | 100,000 events/month |
| Data Hosting | Europe (GDPR) or self-host | US-based |
Common Questions
What is the difference between Hook0 and Hookdeck?
Hook0 is a webhook platform: you send events via API, Hook0 delivers them to subscribers with retries, signatures, and monitoring. Hookdeck is a gateway that sits between existing webhook senders and receivers to add reliability. It doesn't send webhooks itself.
Is Hook0 open-source?
Hook0's server is published under SSPL-1.0 and the SDKs under MIT. SSPL is a source-available copyleft license: you can inspect, modify, and self-host the entire platform freely. Hookdeck is closed-source and only available as a managed SaaS.
Can I self-host Hook0?
Yes. Hook0 supports self-hosting via Docker Compose or Kubernetes at no cost. Hookdeck does not offer self-hosting: it is a cloud-only service.
Which should I choose?
If you need to add webhooks to your product (send events to your users' endpoints), use Hook0. If you already receive webhooks from third parties and just need a reliability proxy, Hookdeck may fit. They're different tools for different problems.
Is Hook0 hosted in the EU, unlike Hookdeck?
Hook0 Cloud is operated by a French company (FGRibreau SARL) on French infrastructure (Clever Cloud), so it falls outside US CLOUD Act jurisdiction, and your webhook payloads stay in the EU. Hookdeck is a US company. You can also self-host Hook0 so no webhook data leaves your network.
Does Hookdeck consider Hook0 an alternative?
Hookdeck publishes comparison pages that include Hook0, and so does Svix. You can read their own assessments alongside ours.
Last reviewed June 2026.
Want more detail? Read the full comparison with architecture diagrams in our docs.
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