Advanced Developer Tools Hub

Discover the best free online resources to streamline your development workflow, enhance your designs, and optimize your projects.

Code & Debugging

  • JSFiddle
    Visit
    Write and test HTML/CSS/JS online with live previews and collaboration features.
    Online IDE Collaboration Live Preview
  • CodePen
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    Frontend playground with community showcases, challenges, and inspiration.
    Social Coding Showcase Templates
  • StackBlitz
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    Online IDE for Angular, React, Vue, and more with full-stack capabilities.
    Full Stack Frameworks Instant Setup
  • Beautifier.io
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    Format HTML, CSS, and JavaScript code for better readability and consistency.
    Code Formatting Readability Customization

Design & UI Tools

  • Coolors
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    Generate, explore and save perfect color palettes for your projects.
    Color Schemes Palette Generator Export
  • FontPair
    Visit
    Discover perfect Google Font combinations for your next project.
    Typography Font Pairing Inspiration
  • Heroicons
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    Beautiful open-source SVG icons with customizable styles and sizes.
    SVG Icons Customizable MIT License
  • Uiverse.io
    Visit
    Free animated HTML/CSS UI elements for modern web interfaces.
    UI Elements Animations Templates

Useful Code Snippets

CSS Gradient Background
.gradient-bg { background: linear-gradient(135deg, #4a00e0, #8e2de2); height: 100vh; }
Centering with Flexbox
.container { display: flex; justify-content: center; align-items: center; height: 100vh; }
Responsive Image
.responsive-image { max-width: 100%; height: auto; }
CSS Variables
:root { --primary-color: #4a00e0; --secondary-color: #8e2de2; }
CSS Flexbox Layout
.flex-container { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100vh; }
CSS Grid Layout
.grid-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
Responsive Image
.responsive-image { max-width: 100%; height: auto; }
Responsive Video
.responsive-video { max-width: 100%; height: auto; }
CSS Animation
.fade-in { animation: fadeIn 1s ease-in-out; }
CSS Variables
:root { --primary-color: #4a00e0; --secondary-color: #8e2de2; }
CSS Flexbox Layout
.flex-container { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100vh; }
CSS Grid Layout
.grid-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }

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