Software Alternatives, Accelerators & Startups

Cal.com VS ember.js

Compare Cal.com VS ember.js and see what are their differences

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Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.

ember.js logo ember.js

A JavaScript framework for creating ambitious web apps
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • ember.js Landing page
    Landing page //
    2022-04-15

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.

ember.js features and specs

  • Convention Over Configuration
    Ember.js emphasizes conventions, which can help streamline the development process and reduce decision fatigue by providing out-of-the-box solutions and standardizing code structure.
  • Robust CLI
    Ember CLI is a powerful command-line tool that helps automate numerous development tasks, such as scaffolding, building, testing, and deploying applications, making the developer's workflow more efficient.
  • EMBER Data
    Ember Data is a robust library for handling data models and relationships. It simplifies the process of interacting with APIs and managing data, offering built-in support for RESTful APIs.
  • Strong Community and Ecosystem
    Ember.js has a strong and active community, which results in extensive documentation, numerous addons, and regular updates, enhancing the framework's reliability and feature set.
  • Two-Way Data Binding
    Ember.js supports two-way data binding, which helps keep the model and the view in sync automatically. This feature simplifies the management of user input and model updates.
  • Built-in Testing
    Ember.js has built-in testing support, making it easier to write and run tests for applications. This facilitates the development of robust, maintainable, and bug-free code.
  • Focused on Large Applications
    Ember.js is particularly well-suited for ambitious, large-scale applications due to its structure and built-in best practices, which promote maintainability and scalability.

Possible disadvantages of ember.js

  • Steep Learning Curve
    Ember.js has a significant learning curve, particularly for developers who are new to its conventions and deep abstractions. This can be a barrier to entry for some.
  • Performance Overhead
    The comprehensive nature of Ember.js can lead to performance overhead, especially for smaller applications. The framework's rich feature set may be more than what is needed for simpler projects.
  • Less Flexibility
    The convention-over-configuration approach can reduce flexibility and make it harder to deviate from the prescribed way of doing things, which can be restrictive for developers who need more control.
  • Heavy Dependencies
    Ember.js applications can come with numerous dependencies, which can increase the bundle size and, subsequently, the load time of the application.
  • Slow to Adapt New Trends
    Being a mature framework, Ember.js can be slower to adopt the latest web development trends compared to newer frameworks, leading to potential lag in leveraging cutting-edge features.
  • Complexity in Customization
    While conventions can be beneficial, scenarios that require custom configurations can become complex and cumbersome, potentially complicating the development process.
  • Smaller Talent Pool
    Compared to more mainstream frameworks like React or Angular, there is a smaller pool of developers who are proficient in Ember.js, which can make hiring and collaboration more challenging.

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

ember.js videos

What is Ember.js?

More videos:

  • Review - A preview of Ember.js Octane

Category Popularity

0-100% (relative to Cal.com and ember.js)
Productivity
100 100%
0% 0
Javascript UI Libraries
0 0%
100% 100
Appointments and Scheduling
JavaScript Framework
0 0%
100% 100

User comments

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Reviews

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

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

ember.js Reviews

Top JavaScript Frameworks in 2025
Ember.JS is an open-source, JavaScript client-side framework that is useful for developing web applications. It provides a complete solution containing data management and application flow to develop an application, making it one of the reasons developers prefer to use it. Ember.JS also uses an MVVM architecture pattern along with a command-line interface tool that helps in...
Source: solguruz.com
20 Next.js Alternatives Worth Considering
Ember.js is old school cool, a framework that’s been whispering sweet nothings to devs for years, helping build ambitious web applications. It wraps its arms around conventions and provides everything you need to build rich, complex web UIs.
The 20 Best Laravel Alternatives for Web Development
Ember.js — the ambitious framework that promises a developer heaven, paving your road to productivity with a convention-over-configuration dogma and a solidly structured path.
9 Best JavaScript Frameworks to Use in 2023
Ember.js: Ember.js provides a lot of built-in features and conventions, making it easy to get started and build complex applications. It has a strong focus on developer productivity.
Source: ninetailed.io
JavaScript: What Are The Most Used Frameworks For This Language?
In addition, it offers a powerful command-line interface (CLI) that can generate boilerplate code and automate common tasks, making it easier to get started and build applications quickly. With a strong focus on performance, Ember.JS provides features like fast initial page loads, incremental rendering and advanced caching mechanisms.
Source: www.bocasay.com

Social recommendations and mentions

Based on our record, Cal.com should be more popular than ember.js. 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.

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 / 7 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
View more

ember.js mentions (32)

  • Embroider & Vite & net::ERR_ABORTED 504 (Outdated Optimize Dep)
    While working on EmberJS projects, I've been using pre-alpha version of @embroider/app-blueprint quite a lot lately and I hit a baffling error:. - Source: dev.to / about 2 months ago
  • ResponsiveImage & EmberJS & glob vite imports
    I had a need to dynamically load a folder images in my EmberJS app that is using embroider-build/app-blueprint and ResponsiveImage. Turns out I could use vite glob imports and resulting code looked something like:. - Source: dev.to / 2 months ago
  • Installing EmberJS v2 addons from GitHub forks using PNPM
    If you're using PNPM as a package manager for your EmberJS project and you find yourself in a need to install a v2 addon from git(hub) fork (because you have a branch with patched version), then you might find that GitHub URLs in package.json tricks don't work for you. - Source: dev.to / 8 months ago
  • Add custom layer to embe-leaflet
    Ember-leaflet is a very popular addon from EmberJS ecosystem that allows a lot of flexibility. - Source: dev.to / 8 months ago
  • JavaScript frameworks: comparing the latest tools and libraries
    Ember.js is an opinionated framework for building ambitious web applications. It emphasizes convention over configuration. - Source: dev.to / 9 months ago
View more

What are some alternatives?

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

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.

AngularJS - AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop.

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

Vue.js - Reactive Components for Modern Web Interfaces

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

Backbone.js - Give your JS App some Backbone with Models, Views, Collections, and Events