CSS Flexbox Generator
Visual flexbox layout builder
CSS Flexbox Generator is a free online tool from BrowserUtils that visual flexbox layout builder. It runs entirely in your browser — your data never leaves your device. No account required.
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.container {
display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: stretch;
flex-wrap: nowrap;
gap: 10px;
}How to use CSS Flexbox Generator
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About CSS Flexbox Generator
Free online CSS flexbox generator. Build flexbox layouts visually by configuring direction, alignment, wrapping, and gap, then copy the CSS code. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
CSS Flexbox Generator specs
- Runtime
- 100% client-side (browser)
- Built on
- CSS Color Module Level 4 conversions (sRGB, OKLCH, OKLAB) and native CSSOM parsing
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
What flexbox properties can I configure?
You can set flex-direction, justify-content, align-items, flex-wrap, and gap to build any flexbox layout visually.
How many child items can I add?
You can add or remove child items to see how your flexbox configuration affects the layout with different numbers of elements.
When should I use flexbox instead of CSS Grid?
Flexbox is best for one-dimensional layouts (a single row or column), while CSS Grid excels at two-dimensional layouts (rows and columns together). Many designs combine both.
Does the flexbox generator output work in all browsers?
Yes, flexbox is supported in all modern browsers including Chrome, Firefox, Safari, and Edge. No vendor prefixes are needed for current browser versions.
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