CSS Flexbox Generator
Build flexbox layouts visually. Adjust container and item properties, preview in real time, and copy the generated CSS code.
Preview
Click an item to edit its individual properties.
Container Properties
Item Properties
.container {
display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: stretch;
flex-wrap: nowrap;
gap: 10px;
}CSS Flexbox Layout
CSS Flexbox (Flexible Box Layout) is a one-dimensional layout model that distributes space among items in a container. It excels at aligning items horizontally or vertically, handling dynamic sizing, and reordering elements without changing the HTML.
Container Properties
The flex-direction property sets the main axis direction (row, column, or their reverse variants). Use justify-content to distribute items along the main axis, and align-items for cross-axis alignment. The gap property adds consistent spacing between items.
Item Properties
Each flex item can override container alignment with align-self. The flex-grow property controls how much an item grows to fill available space, while flex-shrink determines how it shrinks. Use flex-basis to set the initial size before growing or shrinking, and order to rearrange items visually.
Flexbox vs Grid
Flexbox is ideal for one-dimensional layouts (a single row or column), while CSS Grid handles two-dimensional layouts (rows and columns simultaneously). In practice, they complement each other -- use Flexbox for navigation bars, card rows, and alignment tasks, and Grid for full page layouts and complex grids.
About This Tool
The CSS Flexbox Generator is a free online tool available on CodeUtilo. Generate CSS flexbox layouts with a visual editor. Set direction, alignment, and wrapping. All processing happens directly in your browser — no data is ever sent to any server, ensuring your privacy and security. No signup or installation is required.
Key Features
- Browser-Based Processing — All css flexbox generator operations run locally in your browser using JavaScript. Your data never leaves your device.
- Instant Results — Get results immediately as you type or paste your input. No waiting for server responses or page reloads.
- Free & No Signup — Use the css flexbox generator as many times as you need without creating an account or paying anything.
- Mobile Friendly — Works on desktop, tablet, and mobile browsers. Access this tool from any device with an internet connection.
Common Use Cases
- Using the css flexbox generator for day-to-day development tasks
- Saving time on repetitive tasks by using a browser-based tool instead of writing custom code
- Working on projects where installing software is not an option (school, work, shared computers)
- Quick prototyping and debugging without switching to a terminal or IDE
- Sharing the tool link with colleagues who need the same functionality
How to Use
Enter your input in the text area provided and the css flexbox generator will process it instantly. Use the Copy button to copy the result to your clipboard. All operations are performed locally in your browser — no data is transmitted to any server.
Frequently Asked Questions
Is the CSS Flexbox Generator free to use?
Yes, the CSS Flexbox Generator is completely free with no usage limits. There is no signup or registration required. You can use it as many times as you need.
Is my data safe when using this tool?
Yes. All processing happens locally in your browser using JavaScript. Your data is never uploaded to any server or stored anywhere. Everything stays on your device.
Does this tool work on mobile devices?
Yes. The CSS Flexbox Generator is fully responsive and works on smartphones, tablets, and desktop computers. You can use it from any modern browser on any device.
Do I need to install anything?
No. The CSS Flexbox Generator runs entirely in your web browser. There is nothing to download or install. Just open the page and start using it immediately.
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