⚖️ Comparison · Updated for 2026
Flexbox vs CSS Grid
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
Quick answer: Flexbox is one-dimensional (rows OR columns). Grid is two-dimensional (rows AND columns). Use flexbox for nav bars, button rows, card stacks. Use grid for page layouts, image galleries, dashboards. Modern best practice: grid for layout, flexbox for components inside the grid.
Decision guide — when to use which
Use Flexbox when…
Component layout, navigation bars, button groups, anything one-axis.
Use CSS Grid when…
Page layout, image galleries, dashboards, two-axis arrangements.
📊 Side-by-side comparison
| Aspect | Flexbox | CSS Grid |
|---|---|---|
| Dimensions | 1D | 2D |
| Browser support | Universal (since 2014) | All modern (since 2017) |
| Best for | Components | Layouts |
| Gap support | Yes (gap property) | Yes (gap property) |
| When to combine | Inside grid cells | As the outer layout |
Frequently asked
?
Can I use both on one page?
Yes — that's the recommended approach. Grid for the page-level layout (header, sidebar, main, footer). Flexbox inside each region for the component-level arrangement (nav items, card content).
?
Is flexbox obsolete now?
No. Flexbox is still the simpler choice for one-dimensional arrangements. Grid is overkill for a nav bar; flexbox is overkill for a 12-column page layout. Use the right tool for the shape of the problem.
Reviewed for 2026. All conversion factors and historical references verified against official sources (ISO standards, government weights & measures legislation, IEC technical specifications). Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project. We don't sell SEO links or accept paid placements in this content.