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CSS Grid & Flexbox Layout Builder

Generate responsive Grid or Flexbox CSS and preview a configurable multi-item layout.

Privacy: Your input is processed in the browser where supported and is not intentionally stored by this tool.

Result

Your output

Add the required input and run the tool.

What this tool covers

Generate responsive Grid or Flexbox CSS and preview a configurable multi-item layout. The result is based only on the source and settings supplied for the current run.

Input and verification

Check every entered value, unit and selected option, then rerun the tool with a second realistic example to confirm the workflow.

Important limitation

The preview demonstrates layout behavior only; test the generated CSS with real content and project breakpoints.

About CSS Grid & Flexbox Layout Builder

Generate responsive Grid or Flexbox CSS and preview a configurable multi-item layout. The result reflects only the source and settings supplied for the current run.

Before you use the result

Check every entered value, unit and selected option, then rerun the tool with a second realistic example to confirm the workflow.
The preview demonstrates layout behavior only; test the generated CSS with real content and project breakpoints.
Your input is processed in the browser where supported and is not intentionally stored by this tool.