Software Alternatives, Accelerators & Startups

PortMapper VS Cal.com

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

PortMapper logo PortMapper

Do you need to map a specific TCP or UDP port on your machine to another port on another machine?

Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.
  • PortMapper Landing page
    Landing page //
    2019-05-24
  • Cal.com Landing page
    Landing page //
    2023-10-08

PortMapper features and specs

  • Freeware
    PortMapper is available as freeware, meaning it can be used without any cost, making it accessible for users who are looking for a budget-friendly solution.
  • User-Friendly Interface
    PortMapper provides an easy-to-use interface, allowing users to set up port forwarding without much technical expertise.
  • Lightweight
    The software is lightweight, ensuring it doesn't consume significant system resources, which is beneficial for performance.
  • Simple Configuration
    The software allows for quick and simple configuration of ports, useful for users who need to set up port forwarding quickly.

Possible disadvantages of PortMapper

  • Limited Advanced Features
    PortMapper lacks some advanced features that might be necessary for power users or more complex network setups.
  • Windows Only
    The application is only available for Windows, limiting its usability for users on other operating systems like macOS or Linux.
  • Lack of Support
    As a freeware product, PortMapper might not offer robust customer support or regular updates, which can be a drawback for users who may need assistance.
  • Potential Security Risks
    As with any port forwarding tool, there are potential security risks if not configured correctly, possibly exposing the network to vulnerabilities.

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.

PortMapper videos

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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 PortMapper and Cal.com)
Monitoring Tools
100 100%
0% 0
Productivity
4 4%
96% 96
Log Management
100 100%
0% 0
Appointments and Scheduling

User comments

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Reviews

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

PortMapper Reviews

We have no reviews of PortMapper yet.
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Cal.com Reviews

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 56 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.

PortMapper mentions (0)

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

Cal.com mentions (56)

  • 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 / 2 months ago
  • Using Clerk SSO to access Google Calendar and other service data
    BookMate is an open-source, publicly accessible, lightweight clone of popular booking services like cal.com or Calendly. - Source: dev.to / 5 months ago
  • My Journey into Open Source: First Contributions and Lessons Learned
    Then, I came across Cal.com, a fantastic open-source project for scheduling meetings and managing tasks (super useful for productivity!). I knew the basics of Git but wasn’t quite there with forking, merging branches, and all the intricate Git processes. After some YouTube tutorials, I started to get the hang of things. 😅. - Source: dev.to / 6 months ago
  • Start your own (side) business with open-source in mind
    Cal.com is an open-source event-juggling scheduler for everyone, and is free for individuals. - Source: dev.to / about 1 year ago
  • Fellow HSP entrepreneurs, how do you manage your energy and stress?
    I force clients who want to talk to me to book a call. I use cal.com (free) and my Google Calendar (which its linked to) only allows calls on specific days/times. I have a few "Call Blocks" where they can book. That let's me do calls in a small section of my week, with ample downtime to recover the rest of the week. I'm still learning how many calls a day I can handle. Currently anything more than 2 is too much. Source: over 1 year ago
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What are some alternatives?

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

Port Map - TheCodingMonkeys, authors of software like SubEthaEdit.

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.

socat - socat is a relay for bidirectional data transfer between two independent data channels.

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

Packet Sender - Packet Sender can send and receive UDP, TCP, and SSL on the ports of your choosing.

SavvyCal - A scheduling tool both the sender and the recipient will love.