LayoutLab

A tool for measuring previewing grid systems on any website.

3 votes·1 comment·May 25, 2026

About

This Chrome extension adds a customizable overlay system to any webpage, including rulers, guides, columns, and grids to help you create pixel-perfect layouts with confidence. Whether you’re refining spacing, aligning components, or matching a design mockup, the overlay tools give you the visual structure you need without leaving the browser.