Best Free Online Flexbox Generator

CSS Flexbox is a powerful but sometimes confusing layout system. Properties like justify-content, align-items, align-content, flex-wrap, and flex-direction interact with each other in ways that are hard to predict without seeing the result. devtoolkit.sh's Flexbox Generator provides a visual, interactive editor where you can toggle and adjust every Flexbox property on both the container and the flex items, and see the layout update in real time. This eliminates the trial-and-error cycle of writing CSS, saving the file, and refreshing the browser. Add flex children, change their individual flex-grow, flex-shrink, and flex-basis values, and generate a complete CSS snippet that you can copy directly into your project. The generator is invaluable for learning Flexbox and for quickly prototyping layouts without leaving your workflow. It also serves as a reference tool: when you encounter an unfamiliar flex layout in a codebase, reproduce it in the generator to understand how the properties interact before making changes.

display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: stretch;
flex-wrap: nowrap;
gap: 8px;