Upload JSON and Build Live DOM

Choose any JSON spec file or load the bundled sample. This workbench intentionally uses standard Bootstrap 5 patterns such as a navbar, alerts, cards, form controls, and button styles.

Source Controls

Upload a JSON file or paste a spec, then build the preview.

Classic Bootstrap form layout

JSON File

Upload a JSON file or load the Bootstrap sample to begin.

JSON Source

Editable spec

DOM Preview

Rendered output

The rendered DOM will appear below after you click Build DOM.