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Measured entry

shadcn-dialog

dialogunclassified

A source-copy React dialog wrapper shipped through the shadcn registry. It composes Radix UI dialog primitives with Tailwind utility classes, theme tokens, a local class-merging helper, Lucide's close icon, and the shadcn Button used by its optional footer close action.

Specimen
Harness screenshot of shadcn-dialog at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of shadcn-dialog at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of shadcn-dialog at 1440 pixels wide
Harness screenshot at 1440 pixels wide. No horizontal overflow recorded.

Measured

Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.

Harness measurements recorded for shadcn-dialog
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal26.7 KB (92.1 KB build, 65.4 KB baseline)
Bare modeFAIL
Provider requiredNO
Demo usedwritten from the component source API

What the harness recorded

BARE BUILD

✗ Build failed in 3.14s
error during build:
[vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/cut/components/ui/dialog.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'

Verdict

A dependable choice inside an existing shadcn codebase: it built, mounted, stayed contained, and produced no detected accessibility issues in the harness. It is not standalone and needs a shadcn-style setup because the bare project cannot resolve the shared utility import.

Use it if

  • Your app already follows shadcn aliases, theme tokens, and utility-class conventions.
  • You want an accessible modal primitive with overlay, portal, title, description, and close controls exposed as composable parts.
  • You need a dialog that mounts cleanly and stays contained across phone, tablet, and desktop layouts.

Skip it if

  • You need a drop-in package that works without project aliases, shared utilities, or copied source.
  • Your design system does not use Tailwind utilities and shadcn theme tokens.
  • You want a lightweight native dialog with no Radix UI or icon dependency.

Install

Installation record for shadcn-dialog
Declared dependenciesradix-ui
Missing on installnone
Bare installfails once the shadcn-style helpers are removed, so it needs that setup
Providerno provider required in the harness

In a non-shadcn project, add Radix UI and Lucide React, provide Tailwind utilities plus the expected theme tokens and animation styles, configure the source aliases, create the shared cn class-merging helper, and supply or remove the local Button dependency used by the footer.

Source and credit

This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.

Author repository

github.com/shadcn-ui/ui
License
MIT
Record published
2026-08-12

Alternatives

Other published entries for the dialog pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.