TUTO 22: I Built a Lightbox Image Viewer in JavaScript! (FreeCodeCamp Challenge)
In this tutorial, I show you how to build a Lightbox Image Viewer using HTML, CSS, and JavaScript — step by step. This is part of my ongoing JavaScript challenge from FreeCodeCamp where I build one project a day.
📺 Watch the full series playlist here:
👉 • Build Real JavaScript Projects (FreeCodeCa...
What you’ll learn:
How to create a responsive image gallery
How to trigger a full-screen view when an image is clicked
How to add a hover effect to thumbnails
How to close the lightbox with a close button or by clicking outside the image
How to manipulate the DOM using JavaScript
How to toggle visibility using CSS and JavaScript together
Key features of this project:
Thumbnail gallery with hover effects
Lightbox with full-screen image display
Event listeners for user interaction
Image source replacement logic
Responsive and accessible UI
Why this project matters:
This project teaches real-world skills like DOM manipulation, UI feedback, and user-friendly interaction design. It’s perfect for beginners learning front-end development and anyone looking to build their portfolio.
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💬 Got questions? Drop a comment below — I’d love to help.
#JavaScript #Lightbox #ImageGallery #WebDevelopment #FreeCodeCamp #CodingChallenge #LearnToCode #AlainDev