Svix vs Hookdeck vs Convoy 2026: Best Way to Add Webhooks to Your SaaS

Why Webhooks Are Harder Than They Look

A webhook is deceptively simple: when something happens in your app, you send an HTTP POST to a URL someone gave you. Payment succeeded, send a POST. New user signed up, send a POST. It is the glue that lets SaaS products talk to each other without constant polling, and in 2026 an API product without webhooks feels incomplete.

The trouble starts the moment that POST has to be reliable. Customer endpoints go down. Networks time out. A sudden burst of events arrives faster than the receiver can process. A retry fires twice and the recipient double-charges someone. Without a plan, your clean one-liner becomes a source of lost events, duplicate processing, and support tickets you cannot debug because nothing was logged.

Production-grade webhooks need a real list of guarantees: automatic retries with backoff, a queue to absorb bursts, signature signing so recipients can verify authenticity, idempotency so retries are safe, dead-letter handling for endpoints that never recover, and a searchable, replayable log. Building all of that is weeks of work and a permanent operational burden — which is why a category of tools exists to do it for you.

Three names come up most in the JavaScript and TypeScript world: Svix, the managed platform for sending webhooks to your customers; Hookdeck, the gateway for reliably receiving inbound webhooks; and Convoy, the open-source gateway you self-host for both. They overlap, but they lead with different strengths. Here is how to choose.

Developer wiring up event-driven API infrastructure on a laptop

Svix: Outbound Webhooks as a Service

Svix is an API-first platform built for one job above all: sending webhooks to your customers. If you run a SaaS or an API product and your users want to subscribe to events — "notify my system when an invoice is paid" — Svix is the layer that makes that trustworthy without you building delivery infrastructure.

You publish an event to Svix, and it takes over from there: fan-out to every endpoint subscribed to that event, automatic retries with exponential backoff when an endpoint fails, payload signing so recipients can verify the message came from you, and a hosted application portal where your customers register their own endpoints, inspect deliveries, and replay failed events. That portal is a big deal — it is a whole customer-facing surface you would otherwise have to design and maintain yourself.

Sending an event is about as simple as it gets:

import { Svix } from "svix";

const svix = new Svix(process.env.SVIX_TOKEN!);

// Fan this event out to every endpoint the customer subscribed
// to "invoice.paid" — Svix handles delivery, retries, and signing.
await svix.message.create("app_customer_123", {
  eventType: "invoice.paid",
  payload: {
    invoiceId: "inv_42",
    amount: 4900,
    currency: "usd",
  },
});

What Svix gets right:

• Purpose-built for outbound. Everything — the API shape, the portal, the retry semantics — is designed around you sending events to third parties. It is the fastest way to ship that feature correctly.
• The customer portal. Your users get a polished place to manage endpoints, see delivery logs, and replay events, with zero UI work from you.
• Open-source core. The sending engine, retries, and signing are open source, so you can self-host if you need data residency or want to avoid per-event cost.
• Security baked in. Signed payloads, timestamp checks, and documented verification make it easy for recipients to trust your webhooks.

The trade-offs are the usual ones for a hosted service. The managed version is paid, typically usage-based on message volume, so cost scales with your event throughput — fine early, worth modeling as you grow. And it leads with outbound; if your main pain is consuming other people's webhooks reliably, Svix is not the sharpest tool for that direction. For an API company that needs to offer webhooks to its users, though, Svix is often the obvious answer.

Hookdeck: Reliable Inbound Event Gateway

Hookdeck attacks the opposite direction. It is an event gateway that sits in front of your application to make receiving webhooks reliable. Think of the webhooks you consume from Stripe, Shopify, GitHub, or Clerk: those providers fire events at your endpoint, and if your server is briefly down or slow, you can silently lose them. Hookdeck makes sure you do not.

Instead of pointing Stripe at your app directly, you point it at Hookdeck. Hookdeck ingests the event, verifies it, puts it on a durable queue, and delivers it to your backend with retries and rate limiting — so a traffic spike or a deploy never drops an event. Every event is logged, searchable, and replayable with one click, which turns "a webhook failed sometime last night" from a debugging nightmare into a filter-and-replay.

What Hookdeck gets right:

• Inbound reliability. Queueing, retries, and rate-limited delivery mean bursts and brief outages do not cost you events. This is its core competency.
• Observability and replay. A searchable log of every received event, with payloads and delivery attempts, plus instant replay. For debugging third-party integrations this is worth the price alone.
• Routing and transformation. Fan one inbound event out to multiple destinations, filter by type, and transform payloads before they hit your code.
• A buffer in front of your app. Your backend processes events at its own pace instead of being hammered in real time, which plays nicely with background-job systems.

The costs: Hookdeck is a managed, paid service priced on event volume, and it is a dependency in your critical path for inbound events — a deliberate one, since that is the point, but a dependency nonetheless. It also leads with receiving; while it has outbound capabilities, if your primary need is offering webhooks to your own customers, Svix is the more natural starting point. For making the webhooks you consume bulletproof and debuggable, Hookdeck is hard to beat.

Convoy: The Open-Source, Self-Hosted Gateway

Convoy takes the self-hosting route. It is a fully open-source webhooks gateway you run on your own infrastructure, and it is designed to handle both sending and receiving in one system. Where Svix and Hookdeck are managed services with open-source pieces, Convoy's whole proposition is that you own the deployment.

As a gateway, Convoy gives you the production features you expect — endpoint management, automatic retries with backoff, payload signing, rate limiting, a dashboard with delivery logs, and event replay — but running inside your own environment, backed by your own database and queue (Redis and PostgreSQL). That means no per-event SaaS bill and no customer data leaving infrastructure you control, which matters for cost-sensitive teams and for compliance-driven ones alike.

What Convoy gets right:

• No vendor lock-in. It is open source and self-hosted, so you are never on someone else's pricing page or roadmap. For a bootstrapped product that is a real advantage.
• Both directions in one place. Inbound ingestion and outbound delivery live in the same gateway, so you do not stitch two services together.
• Full data control. Events and payloads stay on your infrastructure — useful when you cannot send customer data to a third party.
• Standard production features. Retries, signing, rate limiting, logs, and replay are built in, not something you reimplement.

The honest catch is everything "self-hosted" implies. You deploy, scale, secure, and monitor Convoy yourself, along with its Redis and Postgres dependencies. There is no hosted portal your customers log into unless you expose one, and no vendor support line at 3am — the uptime of your webhook layer is now your responsibility. For a team comfortable operating infrastructure, that is a fair trade for zero per-event cost and total control. For a team that wants webhooks working this week with no ops, a managed service is the easier path.

Head-to-Head

Pricing, limits, and feature details move quickly in this space — treat the table as a map of the trade-offs, not a spec sheet, and confirm current pricing and docs on each project's site before you commit.

How to Choose

Answer three questions.

1. Do you need to offer webhooks to your own customers, fast? Use Svix. It is purpose-built for outbound, and the hosted customer portal — where users register endpoints and replay failed deliveries — is a whole feature you get for free. Accept the usage-based cost as the price of not building delivery infrastructure, or self-host the open-source core if you need to.
2. Is your pain reliably consuming third-party webhooks like Stripe or GitHub? Use Hookdeck. Put it in front of your app so bursts and brief outages never drop an event, and lean on its searchable log and one-click replay the next time an integration misbehaves.
3. Do you want to own the whole webhook layer with no SaaS bill or data leaving your infrastructure? Use Convoy. You get retries, signing, logs, and replay in an open-source gateway that does both directions — in exchange for deploying and operating it yourself.

A common and sensible hybrid: use Hookdeck for inbound (making the events you consume bulletproof) and Svix for outbound (offering clean, reliable webhooks to your own users). The two directions are genuinely different problems, and picking the tool that is sharpest for each is often better than forcing one tool to do both. Self-hosting teams collapse both jobs into Convoy to keep everything in one place and off a vendor's bill.

A Note on Security and Idempotency

Whatever you choose, two things are non-negotiable. First, sign your payloads and verify signatures on the receiving end — all three tools support this, and it is what stops an attacker from forging events. Pair it with a timestamp check to block replay attacks, and treat it as part of the same rate-limiting and abuse-protection story as the rest of your API. Second, make your handlers idempotent: because retries are a feature, the same event can and will arrive more than once, so key on a stable event ID and no-op on duplicates. Getting these two right matters more than which vendor you pick — a webhook system that is fast but forgeable or that double-processes on retry is worse than no webhooks at all.

Why This Matters for the Code You Sell

If you build and sell SaaS boilerplates, API starters, or Stripe billing templates, the webhook layer is not an afterthought — it is infrastructure buyers scrutinize, because they have been burned by flaky webhooks before:

• Reliable webhooks are a selling point. "Customers can subscribe to events, with retries and a signed, replayable delivery log" is exactly the kind of feature that closes a developer-facing sale — but only if they can see it deliver and retry in a live demo, not just a screenshot.
• Be explicit about the dependency. A Svix template means the buyer needs their own account or self-hosts the core; a Hookdeck setup means routing inbound events through Hookdeck; a Convoy template means they deploy the gateway. State it in the listing so there are no surprises after purchase.
• Match the tool to the buyer. Sell Svix-based templates to API companies that need outbound webhooks, Hookdeck-wired ones to products built on Stripe or GitHub events, and Convoy-based ones to the self-hosting, no-lock-in crowd. Each is a legitimate, marketable angle.
• Keep it current and production-ready. Webhook code pinned to an old SDK with broken signature verification is a security and support nightmare. Treat the webhook dependency as part of your production-ready quality story, like the rest of your tech stack.

The Bottom Line

• Svix: the API-first platform for sending webhooks to your customers, with managed delivery, retries, signing, and a hosted endpoint portal — plus an open-source core you can self-host. Choose it to ship outbound webhooks fastest.
• Hookdeck: the event gateway for reliably receiving inbound webhooks, with queueing, retries, deep observability, and one-click replay. Choose it to make the events you consume bulletproof and debuggable.
• Convoy: the fully open-source, self-hosted gateway that does both directions on your own infrastructure. Choose it to own the webhook layer end to end with no per-event bill and no data leaving your environment.

They are less direct rivals than three answers to different versions of the same question: are you sending, receiving, or self-hosting? Pick the one that matches the direction that hurts first, and get signing and idempotency right regardless. Ready to turn the APIs and SaaS kits you build into income? List your template or boilerplate on CodeCudos, browse the best SaaS boilerplate templates to buy, or see what makes code production-ready before your next release.