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Flexbox playground

CSS & UI generators

Experiment with flex direction, alignment, wrap and gap, then copy valid CSS output.

Updated

Flex controls

Preview

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CSS output

display: flex;
flex-direction: row;
justify-content: space-between;
align-items: center;
flex-wrap: wrap;
gap: 12px;

Quick start

How to use flexbox playground

Tune core flex properties and watch immediate layout behavior.

  1. Step 1
    Set flex properties

    Pick direction, justify, align, wrap and gap values.

  2. Step 2
    Watch preview

    Observe how item layout reacts in real time.

  3. Step 3
    Copy CSS

    Paste the generated flex declarations into your project.

In-depth guide

Flexbox playground

Experiment with core flexbox properties and understand layout behavior instantly through a live preview.

Main axis vs cross axis

justify-content aligns items on the main axis. align-items aligns them on the cross axis.

Common real-world patterns

  • Navbar: row + space-between + center.
  • Vertical stack: column + flex-start + stretch.
  • Tag chips: row + wrap + gap.

When to use it vs alternatives

Use this tool for quick browser-based work when you need an answer or output immediately. Use a dedicated application or automated workflow when you need bulk processing, approvals, or repeatable production rules.

Step-by-step usage

  1. Set flex properties — Pick direction, justify, align, wrap and gap values.
  2. Watch preview — Observe how item layout reacts in real time.
  3. Copy CSS — Paste the generated flex declarations into your project.

Common pitfalls

  • Check the result before replacing the original input.
  • Watch for unit, format, encoding, and browser memory limits on large inputs.
  • Keep a copy of important source material until the output is verified.

Privacy and security

Browser-first by design. The tool page explains any exception before you use it.

Your input is handled in the browser wherever the tool can process it locally. EpitomeTool does not add an upload step unless a tool page explicitly says so.

Frequently asked questions

What does flex-wrap do?

It controls whether items stay on one line or move to the next line when space runs out.

Why does align-items feel different in row vs column?

It always aligns across the cross-axis, and the cross-axis changes when flex-direction changes.

Can I copy Tailwind classes too?

This version outputs raw CSS. Tailwind class output can be added in Sprint 2.

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