
Hookdeck
Hookbridge
Webhook.site
RequestBin
hookVM
HookReplay.dev
ngrok
The developer-friendly webhook inspector with real-time team collaboration, request replay, and permanent history.

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

Which is more popular?
Based on our record, Cert Decoder seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | hooklistener.com | certdecoder.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Spain · 1 - 9 employees · 2024 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Hooklistener is a modern tool designed for developers to test, inspect, and debug webhooks and HTTP requests efficiently. While many webhook tools offer temporary disposable URLs, Hooklistener focuses on a professional workflow with persistence and collaboration at its core. It serves as a...
Cert Decoder is a free online tool that helps you decode X.509 SSL/TLS certificates in PEM format. It instantly shows important information like the issuer, expiry date, SAN entries, and fingerprint. All data is processed locally in your browser, so nothing is ever sent or stored elsewhere.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Hooklistener and Cert Decoder.
Hooklistener's answer
Agile SaaS Startups
E-commerce Development Agencies
Fintech Integration Teams
Independent API Developers
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Hooklistener's answer
Hooklistener combines real-time webhook inspection with robust team collaboration and monitoring features. Unlike disposable tools, we offer permanent request history, shared workspaces for teams, email testing, and downtime alerts, making it a complete debugging ecosystem rather than just a temporary bin.
Hooklistener's answer
Choose Hooklistener if you need reliability and teamwork. While competitors offer temporary URLs that delete your data upon closing the tab, Hooklistener provides a persistent workspace where history is saved. It’s built for professionals who need to replay requests, share debug sessions with colleagues instantly, and monitor their endpoints for silence or errors.
Cert Decoder's answer:
Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.
Hooklistener's answer
Our primary audience consists of Backend Developers, QA Engineers, and technical teams building integrations with third-party APIs (like Stripe, Shopify, or PayPal). It is ideal for agile teams that need to debug asynchronous events collaboratively without setting up complex local infrastructure.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Hooklistener's answer
Hooklistener was born out of frustration. As developers, we were tired of using "disposable" webhook tools that lost critical data whenever we refreshed the page or closed the browser. We needed a tool that treated webhook debugging as a serious part of the development workflow—with persistence, security, and the ability to work together as a team. So, we built it.
Cert Decoder's answer:
I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.
Hooklistener's answer
Hooklistener is built on a modern, high-performance stack utilizing Real-time WebSockets for instant data delivery. We use a scalable cloud infrastructure to ensure data persistence and low-latency processing, ensuring that every webhook is captured and displayed the millisecond it arrives.
Cert Decoder's answer:
certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server
Share your experience with using Hooklistener and Cert Decoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Hooklistener since Jan 2025.
Why? Because I built certdecoder.com and couldn’t find a decent place to submit it. So I said screw it — I’ll build my own. With blackjack and hookers. - Source: dev.to / over 1 year ago
When comparing Hooklistener and Cert Decoder, you can also consider the following products.

Hookdeck makes it simple to build and deploy reliable, testable, and debuggable applications that rely on webhooks.
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Hookbridge delivers webhooks quickly and securely — send and receive with automatic retries, HMAC signatures, and durable storage.
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Instantly generate a free, unique URL and email address to test, inspect, and automate (with a visual workflow editor and scripts) incoming HTTP requests and emails.
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RequestBin.com gives you a URL that collects requests you send to it so you can inspect them in a...
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Receive, deliver, and debug webhooks with reliability, observability, and developer-first tooling.
Compare hookVM to Hooklistener or Cert Decoder:

Debug webhooks on localhost in seconds. Receive, inspect, edit, and replay webhooks directly to your localhost using a CLI and WebSockets. No tunneling hacks. Free to start.
Compare HookReplay.dev to Hooklistener or Cert Decoder: