If you’ve ever found yourself drowning in back-and-forth scheduling emails or confused by time zone mix-ups, you’ve probably used (or wished for) a tool like Calendly. Now you can learn how to build your own version from scratch. This course is perfect if you want to get hands-on with real full-stack development, sharpen your skills, and walk away with a polished app you can actually use or show off in your portfolio.
We just published a full-length video course on the freeCodeCamp.org YouTube channe that will teach you how to build a full-stack Calendly clone. In this project-based course, Noor Fakhry (founder of Programming Fluency) walks you through every step of building Calendra, a full-featured scheduling app with real-time Google Calendar sync, timezone handling, and polished UI.
What You’ll Build
By the end of the course, you’ll have a fully deployed scheduling app that can:
Authenticate users securely with Clerk
Let users create events and customize their availability
Allow others to book time through a shareable link
Automatically add events to Google Calendar
Handle timezone logic and avoid double-booking
Look clean, fast, and production-ready
Tools and Technologies Used
In this course you will use a modern stack with real-world tools that are in-demand right now:
Next.js 15 (with the App Router and Server Actions)
React 19 (yes, the latest one)
TypeScript (because maintainable code matters)
Tailwind CSS v4 and shadcn/ui for fast and beautiful styling
Neon as your PostgreSQL database
Drizzle ORM for clean and type-safe database queries
Google Calendar API for calendar integration
Clerk for seamless authentication
Who This Is For
This course is made for:
Frontend developers who want to finally get into full-stack work
Backend-curious devs who want to explore frontend architecture
Junior to mid-level developers looking to build a solid portfolio project
Anyone who wants to understand how modern SaaS apps are built
You’ll get the most out of this course if you already have some experience with React and JavaScript or TypeScript. You don’t need to be a backend expert because Noor walks through everything step by step.
Course Breakdown
Here’s a quick look at what’s covered:
Intro and project walkthrough
Full auth flow with Clerk
Frontend pages and navigation
Database setup with Neon and Drizzle
Creating, editing, and displaying events
Public booking pages
Google Calendar integration
Booking logic with availability checks
Deploying the app
Watch the Course
If you’re serious about full-stack development, this is the kind of project that can make a big difference in your skillset and your portfolio. You can watch the full course now for free on the freeCodeCamp.org YouTube channel (4-hour watch).
Source: freeCodeCamp Programming Tutorials: Python, JavaScript, Git & MoreÂ
