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Indeterminate Progress Bar
An indeterminate progress bar with no aria-valuenow: the moment that attribute appears, a screen reader announces a percentage nobody calculated.
React + Tailwind, shadcn-compatible: press “Copy for AI” and your Cursor or Claude Code agent installs it with the shadcn CLI.
What you can change
- the caption and the second line through label and hint
- the bar thickness through height in pixels
- the beam colour through the --vibeui-spinner-003-accent variable
A link for your AI agent: preview, code and instructions.
Preview
Use it with AI
- 1. Copy the link.
- 2. Write to your agent in your own words and drop the link into the sentence.
- 3. The agent opens the link and installs the component from the registry.
put this on the home page as the hero:
https://vibeui.club/c/spinner-003?lang=en&theme=dark
Not sure where to paste it? Step-by-step guide
Show the full instructions
What the link says, spelled out. Use it when your agent cannot open links — paste this text instead.
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How to use
<Spinner003 label="Syncing the catalog" hint="Almost there" height={4} />A sample call. The agent installs the component itself from the registry via the “Copy for AI” link.
Settings
- Caption
label· default: Syncing the catalog- Second line
hint· default: Almost there- Thickness, px
height· default: 4- Background
background· default: theme colour
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FAQ
- How do I add Indeterminate Progress Bar with Cursor or Claude Code?
- Press “Copy for AI” on this page and paste it into your agent's chat. The instruction contains the shadcn CLI install command, the dependencies and what to keep, so the agent installs this exact component instead of recreating a lookalike.
- What does Indeterminate Progress Bar depend on?
- No npm packages beyond React and Tailwind CSS.
- What can I change in Indeterminate Progress Bar?
- Adapt: the caption and the second line through label and hint; the bar thickness through height in pixels; the beam colour through the --vibeui-spinner-003-accent variable. Keep as installed: the local --vibeui-spinner-003-* palette — do not swap it for your theme tokens; the absence of aria-valuenow: with it a screen reader announces a percentage nobody calculated; the transform-based animation — animating width recalculates layout on every frame.
- Is Indeterminate Progress Bar free?
- Yes. The preview is open without an account; with a free account you can copy up to 20 components a month.
For developers
npx shadcn@latest add https://vibeui.club/r/pro/spinner-003.jsonThis command needs a signed link: sign in and open “Component source” below — it issues a working link valid for 30 minutes. All install options
Technical notes
A server component, there are no hooks. The track is marked role=progressbar with aria-busy and without aria-valuenow — that is the correct way to declare indeterminate progress; an invented percentage is worse than none. The beam travels along the track with a transform animation rather than by changing left or width: the browser does not recalculate layout on every frame, and the bar does not heat the CPU inside a long list. The thickness is exposed through the height prop and fed into a variable in pixels. Under prefers-reduced-motion the beam fills the whole track and breathes slowly. The theme comes from the surrounding color-scheme through light-dark(): the component has no background by default — it sits on the page background and darkens with it, while the background prop switches on a panel.
Tags
- spinner
- progress
- indeterminate
- bar
Component source
The same file your agent installs. Here in case you would rather copy it by hand.
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