Software Alternatives, Accelerators & Startups

HttpMaster VS Cal.com

Compare HttpMaster VS Cal.com and see what are their differences

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HttpMaster logo HttpMaster

HttpMaster is a professional software tool for testing and debugging HTTP applications, primarily aimed at REST API applications and web services.

Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.
  • HttpMaster Main window
    Main window //
    2024-06-13

Core HttpMaster features are: * HttpMaster project to store complete definition of API calls in one single place. * Broad set of http properties. * Dynamic parameters to simulate variations of input data or create global API values. * Response data validation with logical expressions. * Request chaining to use data from previous request with the next request. * Extensive data upload support, including 'multipart/form-data'. * Request data builder for creating request body with an optional dynamic parameters. * Request item execution with detailed progress monitoring. * Execution groups to create batches of requests. * Comprehensive execution data review and management. * Additional tools (basic request tool for ad-hoc execution, command line interface, OpenAPI import, etc).

  • Cal.com Landing page
    Landing page //
    2023-10-08

HttpMaster features and specs

  • HttpMaster project to store complete definition of API calls in one single place
  • Broad set of http properties
  • Dynamic parameters to simulate variations of input data or create global API values
  • Response data validation with logical expressions
  • Request chaining to use data from previous request with the next request
  • Extensive data upload support, including 'multipart/form-data'
  • Request data builder for creating request body with an optional dynamic parameters
  • Request item execution with detailed progress monitoring
  • Execution groups to create batches of requests
  • Comprehensive execution data review and management
  • Basic request tool
  • Command line interface
  • OpenAPI import
  • Prepare cURL commands

Cal.com features and specs

  • Customizable
    Cal.com allows extensive customization to fit various branding and scheduling needs, which makes it adaptable for different types of users including businesses and individuals.
  • Open-source
    Being an open-source platform, Cal.com provides the flexibility for developers to modify and extend the software as per their specific needs, fostering a collaborative development environment.
  • Integrations
    Cal.com offers a wide range of integrations with other software tools like Google Calendar, Microsoft Outlook, and Zoom, enhancing its functionality and making it easier to fit into existing workflows.
  • User-friendly Interface
    Cal.com has an intuitive and clean interface that makes it easy for users of all technical skill levels to set up and manage their scheduling.
  • Privacy-focused
    Cal.com emphasizes data privacy, ensuring user information is handled securely, which is crucial for users who need to comply with regulations like GDPR.

Possible disadvantages of Cal.com

  • Learning Curve
    Although it is highly customizable, the plethora of options and features may result in a steeper learning curve for new users who are not familiar with such scheduling tools.
  • Limited Free Version
    The free version of Cal.com comes with limitations that may not be sufficient for growing businesses or advanced users who require more comprehensive features.
  • Dependency on Integrations
    Cal.com's effectiveness heavily depends on its integrations. Without these integrations, some users might find the tool less useful or incomplete, especially if their primary tools are not supported.
  • Support
    While open-source has many benefits, it may also mean that immediate, personalized support could be limited compared to fully commercial solutions. This might pose a challenge for users needing quick resolutions.
  • Performance
    As an open-source platform, the performance might vary depending on how it is hosted and managed. Suboptimal configurations could lead to slower performance or downtimes.

Analysis of HttpMaster

Overall verdict

  • Overall, HttpMaster is a solid choice for individuals and teams looking for a reliable and efficient tool to test, debug, and document web applications and services.

Why this product is good

  • HttpMaster is considered a good tool because it offers comprehensive testing capabilities for web services and REST APIs. It provides developers and testers with features such as request chaining, parameterization, data validation, and response validation. It supports a wide array of HTTP methods and enables easy automation of testing processes with its command line interface. Additionally, it has a user-friendly interface that simplifies the construction of HTTP requests.

Recommended for

    HttpMaster is well-suited for developers, QA engineers, and testers who need to perform end-to-end testing of web APIs. It's particularly beneficial for those who require a versatile testing solution with both automated and manual testing features. It's also ideal for teams that need to validate the functionality, performance, and security of their web apps through an intuitive platform.

Analysis of Cal.com

Overall verdict

  • Cal.com is generally considered a good option for scheduling and calendar management.

Why this product is good

  • Cal.com is praised for its open-source nature, allowing for greater customization and integration flexibility. It offers a user-friendly interface and supports various calendar integrations, making it a versatile tool for individuals and businesses alike.

Recommended for

  • Freelancers who need a simple yet effective scheduling tool.
  • Small businesses looking for a customizable scheduling solution.
  • Developers who appreciate open-source software and need a tool they can modify.
  • Businesses seeking a platform that can integrate with existing tools and workflows.

HttpMaster videos

Testing with HttpMaster 02

More videos:

  • Tutorial - Web Services Testing with HTTP Master

Cal.com videos

What can you do with Cal? | Cal.com Version 1.1 Launch | 10 new languages

More videos:

  • Review - Cal.com Version 1.0 Launch Event

Category Popularity

0-100% (relative to HttpMaster and Cal.com)
API Tools
100 100%
0% 0
Appointments and Scheduling
Developer Tools
100 100%
0% 0
Calendar And Scheduling
0 0%
100% 100

Questions & Answers

As answered by people managing HttpMaster and Cal.com.

How would you describe the primary audience of your product?

HttpMaster's answer

Developers and testers.

Who are some of the biggest customers of your product?

HttpMaster's answer

  • Microsoft
  • Oracle
  • Google

Why should a person choose your product over its competitors?

HttpMaster's answer

Performance, simple UI, resource friendly.

Which are the primary technologies used for building your product?

HttpMaster's answer

Microsoft .NET.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare HttpMaster and Cal.com

HttpMaster Reviews

We have no reviews of HttpMaster yet.
Be the first one to post

Cal.com Reviews

Acuity Scheduling alternatives for businesses outgrowing it
The honest read: if you're leaving Acuity because your business outgrew simple scheduling โ€” you need deposits, add-ons, multiple staff and locations, and ideally a booking site you own โ€” Opencals is built for exactly that transition, and pay-as-you-go means it costs nothing until you're earning. If you're leaving for a narrower reason, match it precisely: SimplyBook.me for...
Source: opencals.com
I've poked around a while ago at some Calendly alternatives (specifically was lo... | Hacker News
I tried using https://cal.com for a bit but ended up just switching over to https://zcal.co and it has been great so far. All these other scheduling tools end up trying to do too much and always seem to end up a bit clunky and charge absurd amounts for it

Social recommendations and mentions

Based on our record, Cal.com seems to be more popular. It has been mentiond 60 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

HttpMaster mentions (0)

We have not tracked any mentions of HttpMaster yet. Tracking of HttpMaster recommendations started around Mar 2021.

Cal.com mentions (60)

  • "You Wouldnโ€™t Steal a DIV": How I Built My Portfolio
    Then for the component library, I was really into coss ui. I stumbled upon it randomly one day and loved it so much. My Nathan's AI project already had a UI heavily inspired by cal.com: send button, message suggestions... So when I saw they had a shadcn/ui library with that kind of style, it was perfect for what I needed. - Source: dev.to / 4 months ago
  • AI Almost Sold Me a Subscription I Didn't Need
    I keep coming back to what would have happened if I didn't have a strong technical understanding of how calendar technology works โ€” the difference between local and cloud calendars, what an ICS feed is, why enterprise auth blocks third-party integrations. If this was many years ago before I gained all this experience, I would have stopped at the first confident answer from my search tool, installed one of those... - Source: dev.to / 5 months ago
  • Introducing Quackback: Open-Source Feedback Platform with a Built-in MCP Server
    Plausible brought open source to web analytics. Cal.com did it for scheduling. Formbricks did it for surveys. PostHog did it for product analytics. Quackback does it for feedback collection. - Source: dev.to / 5 months ago
  • ๐Ÿค Learn Front-End by Doing: Contribute to Cal.com's Open Source...๐Ÿš€
    In this tutorial, we'll be focusing on Cal.com:. - Source: dev.to / 11 months ago
  • 5 Side Project Ideas for Developers to Monetize as Micro-SaaS in 2025
    Take Cal.com (https://cal.com/), formerly known as Calendso. It started as an open source alternative to Calendly which offers a free, self-hostable version for users. - Source: dev.to / over 1 year ago
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What are some alternatives?

When comparing HttpMaster and Cal.com, you can also consider the following products

Hoppscotch - Open source API development ecosystem

Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.

API Fortress - API performance, accuracy, and uptime testing. Without code.

TidyCal - Optimize your schedule with custom booking pages and calendar integrations

Postman - The Collaboration Platform for API Development

Acuity Scheduling - Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.