b2KIT

UI Component Library Preview

Browse and customize common UI components (buttons, cards, modals, navbars) with live code preview.

Tested tool guide Tested browser tools Checked August 16, 2026

What UI Component Library Preview does and how it behaves

This tool is a catalog of everyday UI pieces: buttons, cards, modals, navbars, and similar building blocks. You pick a component from the gallery, change its properties with the customization controls, and the rendered component and its code update together in the preview. What you get out is the component as you configured it, not a full page. The common misunderstanding is context: the preview is styled by this tool's defaults, so once you paste the code into your site, your own fonts, colors, and layout determine how it actually looks.

How the result is produced

1

Pick a component from the gallery

Components are grouped by kind - buttons, cards, modals, navbars, and similar building blocks. Selecting one loads it into the preview with its code shown alongside. The customization controls are specific to each kind: the options offered for a button differ from those for a modal, because each component has a different structure. Every change you make updates the rendered component and the code together.

2

Preview and code stay in sync

The rendered component and the code panel show the same state at all times: each customization appears in both at once. The preview is the immediate visual check, and the code panel shows the markup and styles that produce that exact appearance, ready to take into your own project. The tool runs entirely in the browser, so nothing you configure is uploaded anywhere.

Good uses

  • You are building a page and need a working button, card, or modal now: pick it from the gallery, adjust it, and copy a starting point instead of writing the markup and styles from scratch.
  • You are choosing between variants of the same component - different colors, sizes, or arrangements - and want to see them rendered before you commit code to your project.
  • You want to see how a component is assembled, for example which parts a modal needs, such as a panel, overlay, and action area, without creating a project just to experiment.

Limits and checks

  • The preview renders in this tool's environment, not yours. Once the code is pasted into your site, your stylesheet, fonts, and container width all change the result, so the component can look different from what you saw here.
  • The output is a component fragment, not a page. Surrounding layout, page scaffolding, and interaction wiring - such as the logic that opens and closes a modal - are separate work that the tool does not do for you.
  • Customization options vary by component, and the preview verifies appearance only. It does not confirm accessibility (contrast, keyboard interaction, labels) or how the component behaves at narrow viewports or in other states.

Common questions

Will the component look the same on my site as it does in the preview?

Not necessarily. The preview is styled by this tool's defaults, and once you paste the code into your project it inherits your site's stylesheet - fonts, colors, spacing, and container width all have an effect. Treat the preview as a faithful rendering of the code as written, then check the component on your own page and adjust.

Can I change the settings after I have copied the code?

Yes. The code panel always reflects the current controls, so you can adjust a component and copy again as often as you like. The output is plain component markup and styles, so you can also edit it by hand once it is in your project. The tool runs entirely in the browser, and nothing you configure is uploaded.

References and verification

The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.

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