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Cal.com VS Next.js

Compare Cal.com VS Next.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.

Next.js logo Next.js

A small framework for server-rendered universal JavaScript apps
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • Next.js Landing page
    Landing page //
    2023-06-19

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.

Next.js features and specs

  • Server-Side Rendering (SSR)
    Next.js supports SSR, allowing pages to be rendered on the server-side before being sent to the client. This results in improved SEO and faster initial page loads.
  • Static Site Generation (SSG)
    Enables pre-rendering pages at build time, which can further improve performance and scalability while allowing for dynamic generation when needed.
  • API Routes
    Next.js allows you to build API endpoints directly in the application, simplifying the process of creating back-end services and endpoints.
  • File-Based Routing
    Offers a simple file-based routing mechanism where the file structure maps directly to the app’s routes, making it easier to manage and understand.
  • Automatic Code Splitting
    Automatically splits code at the page level, reducing the initial load time and improving performance by only loading necessary JavaScript.
  • TypeScript Support
    Built-in support for TypeScript, allowing developers to use static type checking and other TypeScript features easily.
  • Developer Experience
    Provides a great developer experience with features like fast refresh, hot reloading, and detailed error reporting.
  • Rich Ecosystem
    Benefiting from the rich ecosystem of the React community and integrating well with other libraries and tools.
  • Internationalization
    Built-in support for internationalization helps developers build multilingual applications with ease.
  • Community and Support
    Strong community and extensive documentation provide ample support and resources for new and experienced developers alike.

Possible disadvantages of Next.js

  • Learning Curve
    The robust feature set of Next.js can present a steep learning curve for developers who are new to React or server-side rendering concepts.
  • Configuration Overhead
    Although Next.js aims for simplicity, complex projects may still require significant configuration and customization.
  • Performance Overhead
    SSR can introduce additional server load and latency compared to static site generators, especially under high traffic conditions.
  • Deployment Complexity
    Deploying Next.js applications that leverage SSR or API routes may be more complex and could require more sophisticated server infrastructure.
  • Vendor Lock-In
    If heavily relying on Next.js-specific features, moving away from the framework to another solution could require significant refactoring.
  • Bundle Size
    Without careful optimization, client-side bundle sizes can become large, negatively affecting the application’s performance.
  • Build Times
    For large applications, build times can be significant, impacting the development cycle and deployment times.
  • Dependencies
    Next.js introduces its own set of dependencies and tooling, which might complicate version management and compatibility with other tools.

Cal.com videos

+ Add

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

Next.js videos

+ Add

Next.js: The React Framework - JS Monthly - July 2019

More videos:

  • Review - Gatsby vs Next.js: Which does SSG Better?

Category Popularity

0-100% (relative to Cal.com and Next.js)

Cal.com

Next.js

Productivity
100 100%
Productivity
0% 0
Developer Tools
0 0%
Developer Tools
100% 100
Appointments and Scheduling
100 100%
Appointments and Scheduling
0% 0
Web Frameworks
0 0%
Web Frameworks
100% 100

User comments

Share your experience with using Cal.com and Next.js. For example, how are they different and which one is better?
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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 Next.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
Source: news.ycombinator.com

Next.js Reviews

Top 10 Next.js Alternatives You Can Try
Next.js is a well-known platform most of you utilize to build a responsive website. However, if you are annoyed by its limited features, consider Next.js alternatives because flexibility and faster loading speed are always the top concerns of every developer. For this reason, you might need to read this article to explore the top 10 Nextjs Alternatives for the exciting world...
Source: www.zegocloud.com
20 Next.js Alternatives Worth Considering
When it comes to building modern web applications, finding the right framework can be a game-changer. Next.js is often a top choice, but there are several Next.js alternatives worth considering.
Source: tms-outsource.com
10 Best Next.js Alternatives to Consider Today
For those who have been accustomed to the benefits of React Next.js, keeping an eye on the latest version is crucial. Next.js's continuous improvement and updates in Next.js enhance its capabilities, ensuring developers can access cutting-edge features and optimizations. Whether starting a new project or maintaining an existing Next.js website, staying informed about the...
Source: www.saffrontech.net
9 Best JavaScript Frameworks to Use in 2023
Next.js uses JavaScript and React components to create the UI. Next.js is influenced by React Router, Webpack, Node ecosystem, and community libraries. The feature that sets Next.js apart from other frameworks is its ability to automatically generate pages based on the file system structure of the project. For example, if there is a _posts folder in the root directory,...
Source: ninetailed.io
JavaScript: What Are The Most Used Frameworks For This Language?
Some of its top features include server-side rendering, automatic code splitting, client-side routing, built-in CSS support, static site generation and API routes. Overall, Next.JS is a powerful and flexible framework that provides developers with a simple and intuitive way to build complex React applications with ease. It is widely used in the React community and has a...
Source: www.bocasay.com

Social recommendations and mentions

Based on our record, Next.js seems to be a lot more popular than Cal.com. While we know about 1071 links to Next.js, we've tracked only 56 mentions of Cal.com. 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

Next.js mentions (1071)

  • Angular: Beyond the fog #1
    My only true recommendation would be to prefer React for mobile or SSR applications, as community projects (Expo for mobile and Next.js for SSR) are more mature and easier to set up. - Source: dev.to / 2 days ago
  • Generate Git action CI/CD pipeline using Amazon Q CLI
    This is a Next.js project bootstrapped with create-next-app. - Source: dev.to / 4 days ago
  • Build an Inventory Management System Using MongoDB Atlas
    We will walk you through the process of configuring and using MongoDB Atlas as your back end for your Next.js app, a powerful framework for building modern web applications with React. - Source: dev.to / 27 days ago
  • What I learned building my first AI Agent – Part 1
    After refining the user interface and doing some tests, I had a minimal functional AI agent capable of answering questions about Figma features . Since I was using Next.js, I decided to host my app on Vercel, since it was the platform that provided me the easiest and most intuitive way to do it. I was very happy with the result, even though the application was simple, in just a few days I managed to learn about... - Source: dev.to / 9 days ago
  • We Fell Out of Love with Next.js and Back in Love with Ruby on Rails
    3. Load personalized data (json) But usually step 1 and 2 are served from a cdn, so very fast. On subsequent requests, 1 and 2 are usually served from the browser cache, so extremely fast. SSR is usually not faster. Most often slower. You can check yourself in your browser dev tools (network tab): https://www.solidjs.com/ vs. https://nextjs.org/ So much complexity and effort in the nextjs app, but so much slower. - Source: Hacker News / 12 days ago
View more

What are some alternatives?

When comparing Cal.com and Next.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.

Vercel - Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration.

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

React - A JavaScript library for building user interfaces

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

Nuxt.js - Nuxt.js presets all the configuration needed to make your development of a Vue.js application enjoyable. It's a perfect static site generator.

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