Is Hookdeck or Keil MDK better?

Neither clearly leads. Hookdeck starts at Free and Keil MDK at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Hookdeck or Keil MDK?

Hookdeck starts at Free and Keil MDK at Free.

Does Hookdeck or Keil MDK run on more platforms?

Hookdeck runs on Web, Linux, macOS, Windows. Keil MDK runs on Web.

Can I use Hookdeck for free?

Both have a free tier, so you can try either at no cost before committing.

What is Hookdeck best used for?

Hookdeck is most often used for a payments integration where losing a stripe event during a deploy causes an order to go unfulfilled, fanning one provider webhook out to several internal services without each subscribing separately, debugging a partner integration by replaying the exact failing payload after shipping a fix, receiving production-shaped webhooks on a developer laptop without running a public tunnel. Of those, a payments integration where losing a stripe event during a deploy causes an order to go unfulfilled and fanning one provider webhook out to several internal services without each subscribing separately are not what Keil MDK is typically brought in for.

What can Hookdeck do that Keil MDK cannot?

Hookdeck covers Ingest and persist, Automatic retries, Filters and fan-out, Transformations.

Developer Tools · head to head

Hookdeck vs Keil MDK

Hookdeck

Developer Tools

Event gateway that receives, queues, retries and replays inbound webhooks

From: Free
Rated: -

Full review Website

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Hookdeck pricing meters delivered events, so fan-out multiplies the bill: one inbound event routed to four services counts as four deliveries.; Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Hookdeck and Keil MDK actually diverge.

Attributes where Hookdeck and Keil MDK differ
Attribute	Hookdeck	Keil MDK
Pricing model	Per month by delivered event count	freemium
Platforms	Web, Linux, macOS, Windows	Web

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Developer Tools).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Hookdeck

Ingest and persist
Automatic retries
Filters and fan-out
Transformations
Local development CLI
Rate limiting

Only in Keil MDK

Nothing recorded that Hookdeck does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Hookdeck

A payments integration where losing a Stripe event during a deploy causes an order to go unfulfillednot Keil MDK
Fanning one provider webhook out to several internal services without each subscribing separatelynot Keil MDK
Debugging a partner integration by replaying the exact failing payload after shipping a fixnot Keil MDK
Receiving production-shaped webhooks on a developer laptop without running a public tunnelnot Keil MDK

Keil MDK

Embedded software developmentnot Hookdeck
ARM microcontroller programmingnot Hookdeck
Professional development environmentsnot Hookdeck

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Hookdeck

Pricing meters delivered events, so fan-out multiplies the bill: one inbound event routed to four services counts as four deliveries.
Free-tier retention is three days, which is shorter than the time it typically takes to notice a failing integration, so the payloads needed for a replay are often already gone.
It becomes a single point of failure in front of every third-party integration, and an outage there means every provider webhook queues or fails at once.
The transformation layer runs JavaScript in a constrained environment, so anything that needs a database lookup or an external call has to happen downstream instead.
For a team already running Kafka or SQS the value is mostly the console and the replay UI, which is a hard cost to justify against infrastructure they already operate.

Keil MDK

Pricing for Essential and Professional subscriptions not disclosed on primary site
Customers must contact Arm Developer Tools store for subscription rates

Pricing, plan by plan

Hookdeck

Free

DeveloperFree
- Up to ten thousand events per month
- Three-day retention
- One user
Team$39/month
- Ten thousand events included
- Unlimited users
- Pay as you go metering above the included events
Growth$499/month
- Ten thousand events included plus metered usage
- Thirty-day retention
- Uptime and latency SLAs
Enterprise$undefined/year
- Negotiated event volume
- Custom retention
- Dedicated support

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

Which should you pick?

Choose Hookdeck if

You need ingest and persist.
You want to start without paying.
You work on Web, Linux, macOS, Windows.
You also want automatic retries.

Hookdeck review

Choose Keil MDK if

You want to start without paying.

Keil MDK review

Questions people ask

Is Hookdeck or Keil MDK better?: Neither clearly leads. Hookdeck starts at Free and Keil MDK at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Hookdeck or Keil MDK?: Hookdeck starts at Free and Keil MDK at Free.
Does Hookdeck or Keil MDK run on more platforms?: Hookdeck runs on Web, Linux, macOS, Windows. Keil MDK runs on Web.
Can I use Hookdeck for free?: Both have a free tier, so you can try either at no cost before committing.
What is Hookdeck best used for?: Hookdeck is most often used for a payments integration where losing a stripe event during a deploy causes an order to go unfulfilled, fanning one provider webhook out to several internal services without each subscribing separately, debugging a partner integration by replaying the exact failing payload after shipping a fix, receiving production-shaped webhooks on a developer laptop without running a public tunnel. Of those, a payments integration where losing a stripe event during a deploy causes an order to go unfulfilled and fanning one provider webhook out to several internal services without each subscribing separately are not what Keil MDK is typically brought in for.
What can Hookdeck do that Keil MDK cannot?: Hookdeck covers Ingest and persist, Automatic retries, Filters and fan-out, Transformations.

Answered from the vendors’ own pages

Hookdeck: Is there a free plan?

Yes, ten thousand events a month with three-day retention and one user.

Keil MDK: Does Keil MDK have a free version?

Yes, Keil MDK Community Edition is free for non-commercial projects. Essential and Professional editions are available as monthly or annual subscriptions.

Source

Hookdeck: How is usage counted?

By delivered events, so a single inbound webhook fanned out to three destinations counts as three.

Keil MDK: How much do Keil MDK paid editions cost?

Specific pricing for Essential and Professional editions is not published on the main site. Rates are available from the Arm Developer Tools store or by contacting Arm sales.

Source

Hookdeck: Can I replay a failed webhook?

Yes, individually or in bulk from the console, with the original payload.

Hookdeck: Does it work for outbound webhooks too?

Yes, the same queueing, retry and observability applies to webhooks you send.

Hookdeck vs Keil MDK

Hookdeck

Keil MDK

The short version

Where they differ

What each one covers

Only in Hookdeck

Only in Keil MDK

What people use each for

Hookdeck

Keil MDK

Where each one falls short

Hookdeck

Keil MDK

Pricing, plan by plan

Hookdeck

Keil MDK

Which should you pick?

Choose Hookdeck if

Choose Keil MDK if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Hookdeck

More on Keil MDK

Keep looking

Other head to heads