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Click an item to edit its properties

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

How It Works

1

Configure Container

Set flex-direction, justify-content, align-items, flex-wrap, and gap for the container.

2

Adjust Items

Click any item to modify its flex-grow, flex-shrink, and order properties.

3

Copy CSS

Copy the generated CSS for both the container and individual items.

Frequently Asked Questions

What is CSS Flexbox?
Flexbox is a CSS layout model that distributes space among items in a container. It handles alignment, direction, ordering, and sizing of child elements along a single axis.
When should I use Flexbox vs Grid?
Use Flexbox for one-dimensional layouts (row or column). Use Grid for two-dimensional layouts (rows and columns simultaneously). They can be combined in the same project.
What does justify-content do?
justify-content aligns flex items along the main axis (horizontal by default). Values like center, space-between, and space-around control how extra space is distributed.
What does align-items do?
align-items aligns flex items along the cross axis (vertical by default). Common values are stretch (default), center, flex-start, and flex-end.
What is flex-grow?
flex-grow defines how much a flex item should grow relative to other items when extra space is available. A value of 0 means it will not grow, while 1 means it takes its share of remaining space.
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About Flexbox Gen

What this tool does

Developer and design tools include CSS generators (gradients, shadows, glassmorphism), code playgrounds, color pickers, responsive previews, and reference charts for HTML tags, HTTP methods, and keyboard shortcuts.

Why use this tool

Front-end development involves constant context switching between code and visual output. Having generators and references in a single browser tab speeds up prototyping and reduces the need to search through documentation sites.

How it works

Each tool provides an interactive UI: you tweak parameters (colors, radii, durations), and the tool generates the corresponding CSS, HTML, or SVG code in real time. Copy the snippet directly into your project.

Pro tip

Use the CSS variable output option when available. It makes your generated code theme-friendly and easier to maintain across a design system.

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