CSS Grid Wireframe Planner

Draw blocks on a 12-column grid to plan page layouts. Export as HTML/CSS, PNG, or ASCII art.

Grid Settings

Rows 8

Presets

Blocks

Click and drag on the grid to create blocks.

Click + drag on empty cells to create blocks. Click a block to select it. Double-click to rename. Press Delete to remove.

About the CSS Grid Wireframe Planner

The CSS Grid Wireframe Planner lets you visually sketch page layouts on a standard 12-column grid. Click and drag to create named regions, style them with different fills and borders, then export production-ready display: grid code using grid-template-areas.

Use the built-in presets to quickly load common layouts like landing pages, blogs, dashboards, and e-commerce pages, or build your own from scratch. Export as HTML/CSS, download as a PNG image, or copy as ASCII text art for documentation.

How to Use

  1. Adjust the number of rows using the slider (1–20).
  2. Click and drag across empty cells to draw a wireframe block.
  3. Each block is automatically labeled. Double-click a block to rename it.
  4. Select a block to change its fill (gray, white, hatched), border (solid or dashed), and color (8 presets).
  5. Use the presets panel to load common layouts instantly.
  6. Click Copy HTML + CSS to get production-ready grid code with grid-template-areas.
  7. Click Download PNG to save your wireframe as an image.
  8. Click Copy ASCII to get a text-art version for documentation or chat.

Common Use Cases

  • Rapid prototyping — Sketch a page layout before writing any code.
  • Client presentations — Export PNG wireframes to share with stakeholders.
  • Design-to-code — Copy the generated CSS Grid code directly into your project.
  • Documentation — Use ASCII output to describe layouts in README files or code comments.
  • Learning CSS Grid — Understand how grid-template-areas maps to visual layouts.

Frequently Asked Questions

Why a 12-column grid?

The 12-column grid is the most widely used layout system in web design. It divides evenly into halves, thirds, quarters, and sixths, making it extremely versatile for responsive layouts. Frameworks like Bootstrap and Tailwind CSS use 12-column grids as their default.

Can I overlap blocks?

No — blocks cannot overlap. The planner prevents you from drawing a block over cells that are already occupied. This ensures the generated CSS Grid code is valid and predictable.

What is grid-template-areas?

grid-template-areas is a CSS Grid property that lets you define named grid regions using a visual ASCII-like syntax. Each row is a string of space-separated area names, making it easy to see the layout structure directly in the CSS.

Is the PNG export high quality?

Yes. The PNG is rendered at 2x resolution using html2canvas, which captures the DOM as a high-quality raster image suitable for presentations and documentation.