
Sawyer
Swiftlier
CourseStorm
Arlo
Enrollsy
Tuio.org
WPAmelia
ClassDuo is class registration software for in-person programs like camps, workshops, and community classes. It lets you create schedules, collect payments, manage waitlists, track attendance, send reminders, and handle waivers—all in one place.

Webhook.site
Beeceptor
Request inspector
MockServer
CurlHub.io
HttpMaster
API Fortress
RequestBin.com gives you a URL that collects requests you send to it so you can inspect them in a...

Which is more popular?
Based on our record, RequestBin seems to be more popular. It has been mentioned 14 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | classduo.com | requestbin.com |
| Pricing | — | |
| Company | Startup from the United States · 1 - 9 employees · 2024 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


ClassDuo is a modern class registration platform designed for organizations that offer in-person classes, workshops, camps, or community programs. It streamlines the entire registration process, making it easy for staff to create class schedules, publish registration pages, collect payments, and...
No description of RequestBin yet.
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of RequestBin yet.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using ClassDuo and RequestBin. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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RequestBin is an online webhook request sneaking tool. It has a very simple user interface so that developers can hop into the service straight away. If we want to check webhook request data, follow the steps below:
Recommendations tracked on public social media and blogs since March 2021.


Tracking ClassDuo since Jul 2025.
Visit Mockbin.io, Beeceptor or RequestBin and click "Create endpoint." These platforms instantly generate a unique URL that captures incoming HTTP requests. Copy the provided URL, something like https://your-webhook-endpoint.com/hook. - Source: dev.to / about 1 year ago
That's a fun example, because ChatGPT doesn't actually have the ability to fetch the contents of a URL. So it produced that summary (and the lyrics) entirely based on guessing the content of that URL! You can prove this to yourself by... - Source: Hacker News / over 3 years ago
RequestBin.com — Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you can observe requests from webhooks and other services. - Source: dev.to / almost 4 years ago
When comparing ClassDuo and RequestBin, you can also consider the following products.

Discover a wonder-filled world of kids classes, camps, events, and activities, right in your neighborhood
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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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Swiftlier, the all-in-one platform for educational businesses. Streamline complexity. Maximise potential. Swiftlier cuts through admin with automation, giving you time to sell, lead and educate
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Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.
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Impossibly simple course enrollment software.
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Debug web hooks, http clients
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