Visual Interactive Editor
Experiment freely with container and item properties using intuitive visual toggles, sliders, and real-time live preview.
Open-Source CSS Layout Toolkit
About Flexbox Labs
Flexbox Labs is a free, visual, and interactive editor designed to make mastering CSS Flexbox & CSS Grid effortless. Build layouts visually, inspect alignments in real time, and export clean, production-ready code in seconds.
What Makes Flexbox Labs Special
Instant Multi-Format Export
Generate and copy clean HTML, vanilla CSS, and Tailwind CSS classes instantly with a single click for direct use in your projects.
CSS Grid Visualizer (Beta)
Seamlessly design 2D grid layouts, customize columns, rows, gap gutters, and copy grid CSS code in real time.
Complete Cheat Sheet & Templates
Access a comprehensive visual cheat sheet and starter templates covering alignment, directions, flex-grow, shrink, and layout patterns.
Open Source & Community
Flexbox Labs is 100% free and open-source under the MIT license. If you have feedback, feature requests, or encounter any issues, contributions are always welcome!
Support the Project
If Flexbox Labs helps your development workflow or saved you time building responsive interfaces, consider supporting its development and hosting.