Svix vs Hookdeck vs Convoy Webhooks 2026

TL;DR

Svix is the strongest outbound webhook platform for SaaS products sending webhooks to customers — HIPAA/PCI/SOC 2 compliance, message ordering, payload transformations, and a developer portal your customers can use directly. Hookdeck wins on inbound webhook receiving with 120+ pre-configured sources, durable queueing, and $10/million events for outbound delivery. Convoy is the open-source contender — self-host for free, built in Go, with fan-out patterns and multi-tenancy that neither Svix nor Hookdeck match out of the box.

The right pick depends on your direction: outbound delivery to customers (Svix), inbound receiving from third parties (Hookdeck), or self-hosted control without vendor lock-in (Convoy).

Key Takeaways

Svix covers the broadest compliance stack in the webhook space: HIPAA, PCI-DSS, CCPA, SOC 2 Type II — essential for regulated industries
Hookdeck Event Gateway supports 120+ pre-configured inbound sources, each with pre-configured signature verification and payload parsing
Convoy is fully open-source (Apache 2.0) — self-host for free with no feature gating; the cloud offering is optional
At 10M events/month, Hookdeck costs ~$100 vs Svix's ~$1,485 for outbound delivery — a 15x cost difference
Svix enforces message ordering (FIFO) — critical for financial transactions, inventory updates, and audit trails where event sequence matters
All three support automatic retries with exponential backoff — the baseline requirement for production webhook delivery

Webhook Infrastructure Overview

	Svix	Hookdeck	Convoy
Primary Strength	Outbound delivery, compliance	Inbound receiving	Open-source, self-hosted
Direction	Outbound (+ Ingest for inbound)	Inbound (+ Outpost for outbound)	Both
Language	Rust (core), multi-SDK	TypeScript (core), multi-SDK	Go
Open Source	Webhook server (OSS)	SDKs + CLI	Full platform (Apache 2.0)
Self-Hosted	Yes (OSS server)	No	Yes (primary model)
Compliance	HIPAA, PCI-DSS, CCPA, SOC 2	SOC 2	Self-managed
Message Ordering	Yes (FIFO)	No	Configurable
Fan-out	Yes	Limited	Yes (native)
Transformations	JavaScript functions	Filtering only	Transformations supported
Multi-tenancy	App-based isolation	Workspace-based	Native multi-tenant
Starting Price	$490/mo (Professional)	$39/mo (Event Gateway)	$0 (self-hosted)

Svix: Production-Grade Outbound Webhook Delivery

Svix was purpose-built for SaaS companies that send webhooks to their customers — the outbound direction. If you're building a platform and your customers need to subscribe to events from your system, Svix is the most feature-complete managed offering in this category.

Core outbound delivery features

Svix's delivery model is application-centric. You create an "application" for each of your customers, then send messages to endpoints registered under that application. Customers can self-manage their endpoints through a Svix-hosted developer portal — your users can add endpoints, view delivery history, and manually replay failed messages without writing a single support ticket to you.

The retry schedule is configurable with exponential backoff up to 5 days, covering transient outages without overwhelming downstream services on recovery. Failed deliveries are surfaced in the dashboard with full request/response logs and one-click replay.

# Send a webhook via Svix
curl -X POST https://api.svix.com/api/v1/app/{appId}/msg/ \
  -H "Authorization: Bearer YOUR_AUTH_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "eventType": "invoice.paid",
    "payload": {
      "invoiceId": "inv_1234",
      "amount": 9900,
      "currency": "usd"
    }
  }'

Svix signs every message with HMAC-SHA256 and includes a timestamp to prevent replay attacks. SDKs in 25+ languages handle signature verification for your customers' integrations.

Message ordering and transformations

Svix supports FIFO delivery — messages to an endpoint are delivered in the order they were sent. For financial APIs, inventory systems, and any domain where the sequence of events matters, FIFO is a correctness requirement, not a nice-to-have. Neither Hookdeck's outbound product (Outpost) nor Convoy guarantees strict FIFO without additional configuration.

Payload transformations via JavaScript functions let you reshape the outgoing message before delivery. If different customers need different payload shapes, or you're normalizing an internal event format to a public schema, transformations handle this at the delivery layer without requiring changes to your application.

Compliance coverage

Svix's compliance stack is the strongest in the category: HIPAA, PCI-DSS, CCPA, and SOC 2 Type II. For healthcare apps processing appointment or billing events, fintech platforms handling payment notifications, or any company under CCPA data access obligations, Svix's compliance posture eliminates a significant due-diligence burden.

Pricing reality

Svix Professional starts at $490/month. This is not the cheapest option in this comparison, but the compliance certifications, developer portal, and managed infrastructure justify the premium for regulated industries. At the $490 tier, you get 5 million messages/month. Additional messages are billed at roughly $0.10/thousand — making high-volume outbound expensive compared to Hookdeck.

Hookdeck: The Inbound Webhook Specialist

Hookdeck built its reputation on the inbound direction: reliably receiving webhooks from third-party services (Stripe, GitHub, Shopify, Twilio) into your application. Event Gateway is the most feature-complete inbound product in the market.

120+ pre-configured sources

The headline feature is the source library. Each pre-configured source comes with automatic signature verification and payload parsing — no boilerplate code to verify Stripe's Stripe-Signature header or handle Shopify's HMAC computation. Connect a Stripe source, and Hookdeck automatically validates signatures, rejects tampered payloads, and routes verified events to your processing pipeline.

This matters in practice because webhook signature verification is security-critical code that's easy to get wrong. A misconfigured HMAC check is the kind of subtle bug that passes review, passes tests, and then gets exploited. Pre-built verification removes that surface area.

Durable queueing with backpressure

Hookdeck's core value proposition is the durable queue between the webhook source and your application. When your downstream service is slow, overloaded, or temporarily unavailable, Event Gateway buffers incoming events and delivers them at a pace your infrastructure can handle — configurable concurrency limits from 1 to 100+ concurrent deliveries.

This eliminates the most common webhook integration failure: the burst scenario where a vendor sends 1,000 webhooks in 2 seconds during a batch event (Stripe sending all your customers' billing events at the end of the month), your service can't keep up, and you silently drop events because you don't have a durable buffer.

// Hookdeck SDK: verify and process inbound webhooks
import { Hookdeck } from '@hookdeck/sdk';

const hookdeck = new Hookdeck({ token: process.env.HOOKDECK_API_KEY });

// Your endpoint receives pre-verified, deduplicated events
app.post('/webhooks/stripe', async (req, res) => {
  // Hookdeck has already verified the signature
  const event = req.body;
  await processStripeEvent(event);
  res.sendStatus(200);
});

Deduplication

Field-based deduplication is configurable per source. If Stripe sends the same charge.succeeded event twice (which happens under certain retry scenarios), Hookdeck can deduplicate based on the event ID field before your application ever sees the duplicate. This is a data integrity guarantee that requires explicit implementation without Hookdeck.

Outpost: Hookdeck's outbound product

Hookdeck added outbound webhook delivery (Outpost) to compete in the direction Svix owns. At $10/million events, Outpost is significantly cheaper than Svix for pure outbound volume — but it lacks FIFO ordering, payload transformations, and the customer-facing developer portal that Svix provides. For cost-sensitive outbound delivery without compliance requirements, Outpost is compelling. For regulated industries or feature-complete outbound platforms, Svix still leads.

For best practices on handling the retry and failure scenarios Hookdeck manages, see How to Handle Webhook Failures and Retries 2026.

Convoy: Open-Source Webhook Infrastructure

Convoy is the only fully open-source option in this comparison — Apache 2.0 licensed, built in Go, and designed to be self-hosted as the primary deployment model. The cloud offering exists but isn't the main product.

What open-source means here

With Svix and Hookdeck, your webhook infrastructure runs on vendor infrastructure. With Convoy, you run it yourself. That means:

Data residency: webhook events never leave your infrastructure
No vendor pricing risk: your cost is compute, not per-event fees
Custom modifications: fork the repo, add features specific to your domain
Compliance via infrastructure: HIPAA and SOC 2 compliance becomes your infrastructure team's responsibility, not a vendor's certification

For companies with strict data residency requirements, or engineering teams comfortable running Go services in production, Convoy's self-hosted model is a genuine alternative to the managed platforms.

Fan-out and multi-tenancy

Convoy was designed from the start for multi-tenant SaaS platforms. Fan-out patterns — sending a single event to multiple endpoints, potentially across different customer accounts — are a first-class concept in Convoy's data model. You define "projects" (equivalent to Svix's applications) and "sources" (inbound), and Convoy handles routing, fan-out, and per-project delivery tracking natively.

The multi-tenancy model also means per-customer isolation is built-in. Each customer project has its own event history, endpoint configuration, and retry queue. There's no risk of one customer's high event volume affecting another's delivery latency.

Deployment

Convoy ships as a Docker image with a Go binary, backed by PostgreSQL and Redis:

# convoy docker-compose excerpt
services:
  convoy:
    image: getconvoy/convoy:latest
    environment:
      - CONVOY_DB_DSN=postgres://convoy:password@db:5432/convoy
      - CONVOY_REDIS_DSN=redis://redis:6379
    ports:
      - "5005:5005"
  db:
    image: postgres:14
    environment:
      POSTGRES_DB: convoy
      POSTGRES_USER: convoy
      POSTGRES_PASSWORD: password
  redis:
    image: redis:7-alpine

Horizontal scaling is supported — multiple Convoy instances behind a load balancer share state through PostgreSQL and Redis. The engineering investment is real: you're responsible for database backups, Redis HA, and Go service upgrades. But for teams already running Go services and PostgreSQL in production, the operational overhead is marginal.

Convoy Cloud

Convoy's cloud offering provides the managed version for teams that want the open-source feature set without the operational overhead. Pricing is consumption-based — charged per event delivered, with a generous free tier. The cloud offering is useful for evaluation and small-scale production, but the platform's positioning is clearly self-hosted-first.

Convoy's limitations

No E2E encryption. Like OneSignal in the push space, Convoy doesn't offer payload encryption at the infrastructure level — you handle that at the application layer.

Smaller ecosystem. Svix has 25+ language SDKs; Hookdeck has 9; Convoy's SDK ecosystem is smaller and less mature. Teams on niche languages may need to use the REST API directly.

Compliance burden shifts to you. Running HIPAA-compliant webhook infrastructure on Convoy means your infrastructure team owns the BAA, access controls, audit logging, and SOC 2 controls. That's not a dealbreaker, but it requires capacity.

For the broader architecture context around resilience in API systems, see API Resilience: Circuit Breakers, Retries, and Bulkheads 2026.

Pricing Comparison at Scale

Volume-based pricing comparison for outbound delivery:

Monthly Events	Svix	Hookdeck (Outpost)	Convoy (Cloud)	Convoy (Self-hosted)
1M	$490	$49 + base	Usage tier	~$20-50 infra
5M	$490	~$50 + base	Usage tier	~$30-80 infra
10M	~$1,485	~$100 + base	Usage tier	~$50-150 infra
50M	~$5,490	~$500 + base	Usage tier	~$150-400 infra

For inbound receiving, Hookdeck Event Gateway starts at $39/month for up to 250K monthly events; Svix Ingest pricing is available on request.

The self-hosted Convoy cost estimates assume a small PostgreSQL instance plus Redis on a cloud provider. At high event volumes, the infrastructure cost advantage of self-hosting Convoy is significant.

When to Use Which

Use Svix when:

You're building a SaaS platform and your customers need to receive webhooks from your system
Compliance is non-negotiable (HIPAA, PCI-DSS, SOC 2)
Message ordering matters (financial events, inventory, audit trails)
You want a customer-facing developer portal for endpoint management without building it yourself
Payload transformations at the delivery layer reduce application complexity

Use Hookdeck when:

You primarily need to receive webhooks from third-party services (Stripe, GitHub, Shopify)
Inbound reliability with durable queueing and backpressure is the core requirement
Cost-sensitive outbound delivery (Outpost at $10/million events is 15x cheaper than Svix at scale)
Deduplication and signature verification handled at the infrastructure layer reduces application risk

Use Convoy when:

Data residency requirements prohibit vendor-hosted infrastructure
Your team is comfortable operating Go + PostgreSQL + Redis in production
Open-source control and the ability to fork/customize matters
Multi-tenancy and fan-out are primary architectural requirements
Cost at scale is a primary constraint and self-hosted infra costs are predictable

The Coexistence Pattern

Some production architectures run multiple webhook tools for different directions:

Svix for the outbound direction (your platform → your customers)
Hookdeck for the inbound direction (third-party services → your platform)
Convoy self-hosted for internal event routing across services

This isn't over-engineering if each tool handles a different flow. The webhook infrastructure layer is often the component most engineers underestimate — the difference between "we'll just POST to a URL" and reliable, observable, retry-capable event delivery is months of engineering work. Managed platforms exist because that work is solved and worth paying for.

Also see Svix vs Hookdeck: Webhook Platforms 2026 for a detailed two-way comparison of the managed leader pair.

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