Flexbox Playground
Toggle flex-* properties on a live container
About Flexbox Playground
What this tool does
An interactive Flexbox reference. Toggle every valid value of flex-direction, justify-content, align-items, align-content, flex-wrap, and per-item flex-grow / flex-shrink / align-self, then see the live preview change and copy the exact CSS.
When to use it
- Learning what each Flexbox property actually does
- Debugging a Flexbox layout that's not doing what you expect
- Prototyping a header, toolbar or card grid
- Teaching Flexbox visually instead of from a docs page
Frequently asked questions
Yes — Add item and Remove item buttons let you test with 2–10 items.
No — Grid has its own playground (grid-playground). Flexbox and Grid are complementary, not competing.
Yes — click any item to open per-item controls for flex-grow, flex-shrink, flex-basis, and align-self.
Both the container CSS and any non-default per-item overrides, ready to paste.
Embed this tool on your site
Drop a one-line iframe snippet into any blog, lesson plan, or knowledge base. Powered-by-Toolenza link included.
Embed this tool
Paste this snippet into any HTML page. The tool runs entirely in your reader's browser.
Flexbox Playground
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