caliper uidocs
DemoSign inGet Pro

Thinking loader

Pro

A short animated loader for the moment before a reply begins.

Installs components/ui/thinking-loader.tsxDepends on none beyond ReactMotion shared motion tokens
pnpm dlx shadcn@latest add @caliper/thinking-loader

When to use #

Use it for

  • The model is working but has nothing to show yet.
  • You want the wait to feel considered, not blank.

Skip it when

  • Progress can be measured; use a progress bar.

Installation #

terminal
pnpm dlx shadcn@latest add @caliper/thinking-loader

Adds its 3 files to components/ui/, each with its own stylesheet, and installs their packages. Pro installs with your access token, set up once per project. See Pro access. The first part also adds Caliper UI’s tokens; import them once as in Installation.

Usage #

Import it from your copy of the source. The example behind the preview comes with the source.

example.tsx
import { ThinkingLoader } from "@/components/ui/thinking-loader"

The worked example comes with Pro

The 8-line example behind the preview opens here with a Pro or Team licence.

Checking your licence…

API reference #

ThinkingLoader

component
PropTypeDefault
variantThinkingVariant"dots"
labelstring"Thinking"
phrasesreadonly string[]["Reading your question", "Looking through the files", "Drafting an answer"]
classNamestring—

Accessibility #

It exposes status semantics, with aria-label and aria-hidden kept in step with state. Changes that matter are announced through a live region.

No custom key handling; Tab and the native activation keys do the work.

Motion #

Transitions use the shared duration and easing tokens. Under prefers-reduced-motion those tokens collapse to instant and travel distances go to zero, so state changes still happen without movement.