Svix vs Hookdeck vs Convoy: Webhook Infrastructure for SaaS 2026

Webhooks seem simple. Your application fires an HTTP POST to a URL whenever something interesting happens. The receiving server processes it and returns a 200. Done. Except that roughly 15% of webhook deliveries fail on the first attempt. The destination server might be down for a deploy. The request might time out because the consumer's handler takes too long. The endpoint URL might have been rotated without your knowledge. A CDN in front of the consumer's server might return a cached response or a CAPTCHA challenge. The list goes on.

When you are sending a handful of webhooks per day, these failures are a nuisance. When you are sending millions per day across hundreds of consumer endpoints, they become an operational crisis. Your support team fields tickets from customers who missed critical events. Your engineering team builds retry logic, dead letter queues, and monitoring dashboards that have nothing to do with your core product. You end up maintaining an entire distributed messaging system that your customers never see and never pay for directly.

Three tools have gained serious traction by solving this exact problem: Svix provides embeddable webhook sending infrastructure you can self-host or run as a service. Hookdeck sits between webhook senders and receivers, handling ingestion, transformation, and reliable delivery. Convoy is an open-source webhook gateway focused on retries, rate limiting, and delivery guarantees. Each one makes different architectural assumptions about where the complexity belongs, and those assumptions have real consequences for your integration story.

If you are building a SaaS product that needs to send webhooks to your customers, or if you are consuming webhooks from third-party services, the tool you choose shapes your reliability guarantees, your observability story, and how much of your engineering budget goes to plumbing instead of product features.

Svix is designed for one specific use case: you are building a SaaS product and you need to send webhooks to your customers' endpoints. It is not a general-purpose event bus or a message broker. It is a webhook sending service that you embed into your product, either by running the open-source server yourself or by using Svix's hosted cloud offering.

Architecture and Core Model

The mental model is straightforward. Your application publishes events to Svix through its API. Svix stores those events, signs them with HMAC-SHA256 (or optionally with asymmetric ed25519 signatures), and delivers them to whichever endpoints your customers have registered. If delivery fails, Svix retries with exponential backoff over a configurable schedule that defaults to roughly 24 hours of attempts. Your customers get a portal (embeddable in your app's UI) where they can see delivery history, inspect payloads, replay failed events, and manage their endpoint URLs.

The open-source version is written in Rust. You can deploy it with PostgreSQL as the backing store for smaller workloads, or with Redis and Kafka for higher throughput scenarios. The cloud version handles all of that for you, charging per message at roughly $0.20 per 1,000 messages after the free tier of 50,000 messages per month.

Key Features

• Event types and filtering: Define event types (e.g., invoice.paid, user.created) and let your customers subscribe only to the ones they care about. This reduces noise on the consumer side and saves you bandwidth.
• Signature verification: Every outgoing webhook is signed. Svix provides verification libraries in Python, Node.js, Go, Ruby, Java, Kotlin, and several other languages so your customers can validate authenticity without rolling their own HMAC logic.
• Embeddable application portal: A pre-built React component that you drop into your settings page. Your customers manage their own endpoints, view delivery logs, and replay failed messages without your support team getting involved.
• Transformations: Apply JavaScript-based transformations to outgoing payloads so different customers can receive the same event in different formats. Useful when you need to match a customer's existing schema expectations.
• Operational webhooks: Svix can send you (the SaaS provider) a webhook when one of your customer's endpoints starts consistently failing, so you can proactively reach out before they open a support ticket.

Where Svix Shines

Svix is the strongest choice when you are building the sending side of a webhook integration. The embeddable portal alone saves weeks of frontend development time. The signature verification libraries eliminate a common source of integration bugs. And the operational webhooks give you visibility into delivery health across your entire customer base without building a custom monitoring system.

The main limitation is scope. Svix does not help you consume incoming webhooks from other services. It does not sit in front of your application as an ingestion layer. It is purpose-built for outbound delivery, and it does that job well.

Hookdeck occupies a different architectural position than Svix. Instead of embedding inside your application as a sending service, Hookdeck acts as a managed layer between webhook sources and destinations. It handles both inbound and outbound webhooks, which makes it useful for teams that need to receive webhooks from third-party services (Stripe, GitHub, Shopify) and deliver processed events to internal systems or downstream consumers.

How Hookdeck Works

You create "connections" in Hookdeck that link a source (an incoming webhook URL) to a destination (your application's endpoint). When a webhook arrives at the Hookdeck-managed URL, Hookdeck ingests it, optionally transforms the payload, and forwards it to your destination. If your destination is down, Hookdeck queues the event and retries on a configurable schedule. You get a full dashboard showing every event, its delivery status, the request and response bodies, and the latency at each hop.

Key Features

• Payload transformations: Write JavaScript functions that run on every event before it reaches your destination. Normalize date formats, extract nested fields, rename keys, or filter out events you do not care about. This moves transformation logic out of your application code and into a managed layer where you can iterate without redeploying.
• Fan-out delivery: Route a single incoming webhook to multiple destinations. If a Stripe payment.succeeded event needs to update your database, trigger an email, and log to your analytics warehouse, Hookdeck delivers to all three independently with separate retry policies for each.
• Rate limiting and throttling: Control how fast events are delivered to each destination. If your consumer can only handle 100 requests per second, Hookdeck buffers and delivers at that rate without dropping events. This is critical when integrating with legacy systems or rate-limited APIs.
• Event filtering: Define rules to accept or reject events based on payload content. Drop test events in production, ignore low-priority event types, or route different event types to different destinations.
• CLI and local development: Hookdeck provides a CLI that tunnels webhooks to your local machine during development, similar to ngrok but integrated with the full Hookdeck event pipeline. You can inspect, replay, and debug events locally without deploying.

Where Hookdeck Shines

Hookdeck is the strongest choice when you are on the receiving end of webhooks and need reliability guarantees that the sender does not provide. Many webhook senders have minimal retry logic (Stripe retries over 72 hours, but many smaller services give up after a single failure). Hookdeck gives you a reliable buffer between unreliable senders and your application.

It also works well as an outbound sending layer, though it does not offer the same embeddable customer-facing portal that Svix provides. If your primary concern is building a polished webhook experience for your SaaS customers, Svix is the more focused tool. If your concern is reliable event routing across multiple sources and destinations, Hookdeck gives you more flexibility. Teams already thinking about event-driven architecture will find Hookdeck's fan-out and transformation capabilities align naturally with that pattern.

Hookdeck's pricing starts with a free tier of 100,000 events per month. The Team plan runs $75/month for 250,000 events, and the Growth plan is $250/month for 1,000,000 events. Overage pricing varies by tier.

Convoy is an open-source, high-performance webhook gateway built by the team at Frain Technologies. Like Svix, it can be self-hosted. Like Hookdeck, it handles both sending and receiving. But Convoy's core architectural bet is on retry reliability and delivery guarantees, with a particular focus on giving operators fine-grained control over how failures are handled.

Architecture

Convoy is written in Go and uses PostgreSQL for storage and Redis for queueing. You deploy it as a standalone service (Docker, Kubernetes, or bare metal), point your application at its API, and publish events. Convoy handles endpoint management, signing, delivery, retries, and rate limiting. It supports both "outgoing" projects (you send webhooks to external consumers) and "incoming" projects (you receive webhooks from external services), though its strength leans toward the outgoing use case.

Key Features

• Configurable retry strategies: Convoy supports linear, exponential backoff, and custom retry schedules defined per endpoint. You can set the maximum number of retry attempts, the interval between retries, and the backoff multiplier independently for each destination. This is more granular than Svix's retry configuration and significantly more flexible than most SaaS webhook services.
• Circuit breaking: If an endpoint fails consistently, Convoy automatically disables delivery to that endpoint (circuit open) and periodically probes it to see if it has recovered (circuit half-open). This prevents your system from wasting resources hammering a dead endpoint while ensuring delivery resumes automatically when the endpoint comes back.
• Rate limiting per endpoint: Control the delivery rate to each consumer endpoint independently. One consumer might handle 500 events per second while another can only process 10. Convoy respects these limits without dropping events.
• Signature schemes: Supports HMAC-SHA256, HMAC-SHA512, and custom header-based authentication. You can configure different signing schemes for different endpoints if your consumers have varying verification requirements.
• Event log and replay: Full event log with the ability to filter by status, endpoint, event type, and time range. Failed events can be replayed individually or in bulk. The dashboard shows delivery attempts, response codes, and latency for each attempt.
• Static IPs: On Convoy's cloud offering, you get static IP addresses for outbound webhooks. This is a requirement for enterprise customers who whitelist IPs in their firewalls.

Where Convoy Shines

Convoy is the strongest choice when your priority is operational control over the delivery pipeline. The combination of per-endpoint retry strategies, circuit breaking, and rate limiting gives you tools to handle a diverse set of consumers with very different reliability characteristics. If some of your consumers are running on flaky infrastructure and others are running on hardened Kubernetes clusters, Convoy lets you tune the delivery strategy for each one independently.

The main tradeoff is operational overhead. Running Convoy in production means operating PostgreSQL, Redis, and the Convoy service itself. You need to handle upgrades, scaling, backup, and monitoring. The cloud offering eliminates that burden but is relatively new compared to Svix Cloud. Convoy also lacks a pre-built embeddable portal like Svix's application portal, so you will need to build customer-facing endpoint management UI yourself.

Let's break down the three tools across the dimensions that matter most when choosing webhook infrastructure for a production SaaS application.

Delivery Guarantees

All three tools provide at-least-once delivery, meaning they guarantee that a successfully published event will be delivered to the destination at least once (assuming the destination eventually becomes available within the retry window). None of them provide exactly-once delivery, because true exactly-once semantics require coordination with the consumer, which is outside the scope of these tools. Your consumers should always implement idempotency on their side.

Svix retries failed deliveries over a configurable window that defaults to about 24 hours, using exponential backoff with jitter. Hookdeck retries on a configurable schedule with manual or automatic replay available for events that exhaust all retry attempts. Convoy gives you the most control, letting you configure retry strategy, interval, and attempt count per endpoint.

Payload Transformation

Hookdeck has the most mature transformation story. You write JavaScript functions that intercept events before delivery, and those functions have access to the full event payload, headers, and metadata. Svix added transformations more recently and supports JavaScript-based payload modification for outgoing webhooks. Convoy does not currently offer built-in payload transformation, so you need to handle schema mapping in your application before publishing events.

Fan-Out Patterns

Hookdeck supports fan-out natively. A single incoming event can be routed to multiple destinations with independent retry policies and delivery tracking. Svix supports multiple endpoints per application, which achieves fan-out for outgoing webhooks, though each endpoint receives the same event type subscriptions. Convoy supports multiple endpoints and subscriptions within a project, providing fan-out with per-endpoint configuration.

Observability and Dashboards

This is an area where all three tools invest heavily, because webhook debugging is painful without proper tooling. Svix provides a dashboard that shows event delivery status, endpoint health, and message history. The embeddable application portal gives your customers visibility into their own delivery logs. Hookdeck's dashboard is the most detailed of the three, showing the complete lifecycle of each event from ingestion through transformation to delivery, including timing data at each stage. Convoy's dashboard focuses on delivery attempts, showing response codes, latency, and retry history for each event per endpoint.

Pricing at Scale

Svix Cloud charges roughly $0.20 per 1,000 messages after 50,000 free messages monthly. At 10 million messages per month, you are looking at around $2,000. The open-source version is free to self-host, but you absorb the infrastructure and operational costs. Hookdeck's Team plan ($75/month) covers 250,000 events, and the Growth plan ($250/month) covers 1,000,000 events. Beyond that, you are on custom pricing. Convoy's cloud pricing is competitive but less publicly documented. The open-source version is free with the same self-hosting tradeoffs as Svix.

For teams building products that need to align webhook delivery with broader API-first development patterns, the choice often comes down to whether you are primarily a webhook sender (Svix), a webhook receiver (Hookdeck), or an operator who wants maximum control over the delivery pipeline (Convoy).

The right tool depends on which side of the webhook you are on and how much operational complexity you want to absorb.

Choose Svix When

You are building a SaaS product that sends webhooks to customers, and you want a polished, production-ready experience without building everything from scratch. The embeddable application portal is a meaningful differentiator. Your customers get self-service endpoint management, delivery logs, and event replay without your team building any of that UI. If you are a B2B SaaS company and webhooks are a core part of your integration story, Svix gets you to production faster than the alternatives.

Svix also makes sense if you want the option to self-host. The open-source Rust server performs well under load, and deploying it on your own infrastructure gives you full control over data residency, which matters for regulated industries. Start with Svix Cloud, and move to self-hosted if compliance requirements demand it.

Choose Hookdeck When

You are consuming webhooks from third-party services and need a reliability layer between those services and your application. Hookdeck's fan-out, transformation, and filtering capabilities make it the strongest choice for complex inbound webhook architectures. If you receive webhooks from Stripe, GitHub, Shopify, and five other services, and you need to normalize their payloads, route them to different internal services, and guarantee delivery even during deploys, Hookdeck handles all of that.

Hookdeck is also a good fit if you need both inbound and outbound webhook handling in a single managed service. It is not as specialized as Svix for the outbound case (no embeddable portal), but it covers both directions without requiring two separate tools.

Choose Convoy When

You want maximum control over retry behavior, circuit breaking, and per-endpoint delivery configuration, and you are comfortable operating the infrastructure yourself. Convoy is the best choice for teams that have diverse consumer endpoints with very different reliability profiles and need to tune delivery strategies accordingly. If you are an enterprise platform sending webhooks to hundreds of customers with varying infrastructure quality, Convoy's per-endpoint retry and rate-limiting configuration gives you tools the other two do not.

Convoy also makes sense if your team has strong operational capabilities and prefers open-source solutions they can inspect, modify, and deploy on their own terms. The Go codebase is well-structured and actively maintained. Just be prepared to invest in running PostgreSQL, Redis, and the Convoy service reliably. For teams already following SaaS platform architecture patterns, Convoy slots into existing infrastructure without requiring a new managed service dependency.

Regardless of which tool you choose, there are patterns and mistakes that apply to webhook infrastructure in general.

Always Implement Idempotency on the Consumer Side

Every webhook infrastructure tool provides at-least-once delivery. That means your consumer will occasionally receive the same event twice, especially after network timeouts where the delivery succeeded but the acknowledgment failed. Use the event ID (all three tools provide one) to deduplicate on the consumer side. Store processed event IDs in your database and skip events you have already handled. This is not optional. It is a requirement for correct webhook consumption.

Set Aggressive Timeouts on Your Webhook Handlers

One of the most common causes of webhook delivery failure is slow consumer handlers. If your handler makes three database queries, calls two external APIs, and sends an email before returning a 200, it will frequently time out. Webhook senders typically expect a response within 5 to 30 seconds. The fix is simple: accept the webhook, store the payload, return a 200 immediately, and process the event asynchronously. All three tools work better when consumers respond quickly.

Monitor Endpoint Health Proactively

Do not wait for customers to tell you their webhook endpoint is broken. Svix's operational webhooks notify you when an endpoint starts failing. Hookdeck's dashboard shows delivery success rates per destination. Convoy's circuit breaker automatically disables failing endpoints. Whichever tool you use, set up alerts for sustained delivery failures and reach out to affected customers before they open a ticket. A proactive message about a failing endpoint builds more trust than a reactive response to a complaint.

Version Your Webhook Payloads

Webhook schemas evolve. You will add fields, deprecate fields, and occasionally change the structure of your event payloads. If you do not version your webhooks, you will break existing consumers every time you make a schema change. Include a version field in your payload or use event type versioning (e.g., invoice.paid.v2) so consumers can handle schema changes gracefully. Svix's event type system and Hookdeck's transformations both help with versioning, but the discipline of not breaking existing consumers has to come from your team.

Test with Real Failure Scenarios

Spin up a test endpoint that returns 500 errors, a test endpoint that takes 60 seconds to respond, and a test endpoint that closes the connection mid-response. Send webhooks to all three and verify that your retry logic, timeout handling, and dead letter behavior work as expected. It is much better to discover edge cases in staging than in production when a customer's infrastructure is having a bad day.

Building reliable webhook infrastructure is one of those problems that looks easy at first and gets exponentially harder at scale. Svix, Hookdeck, and Convoy each eliminate a significant chunk of that complexity, but they do it for different use cases. Pick the one that matches your architecture, invest in idempotent consumers and proactive monitoring, and you will spend far less time debugging missed events and far more time building features your customers actually see.

If you are evaluating webhook infrastructure for a SaaS product and want help choosing the right tool for your architecture, our team has implemented all three across dozens of production systems. Book a free strategy call and we will walk through your specific use case.