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Measured entry

fancy-scramble-in

text-effectdark-futuristicmotion on file

A client-side React text effect that reveals a supplied string while cycling random trailing characters. It ships as a TypeScript component through a shadcn registry, uses React hooks and an interval, and relies on Tailwind utility classes for its screen-reader and inline layout treatment. It adds no separate runtime package.

Specimen
Motion capture of the mounted demo, recorded by the harness. No audio track.
Harness screenshot of fancy-scramble-in at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of fancy-scramble-in at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of fancy-scramble-in 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 fancy-scramble-in
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal17.8 KB (83.2 KB build, 65.4 KB baseline)
Bare modeOK
Provider requiredNO
Demo usedwritten from the component source API

Verdict

A focused, dependency-light effect with sensible callbacks, replay controls, and accessible duplicate text. It is a good fit for occasional display copy, but teams should add reduced-motion handling and avoid using the animation for frequently changing or essential content.

Use it if

  • You want a short headline, status, or code-like label to resolve from scrambled characters on entry.
  • You need imperative start and reset controls or completion callbacks for sequencing the effect with other UI.
  • You want the final text exposed to assistive technology while the changing visual characters stay hidden from it.

Skip it if

  • Your motion policy requires automatic reduced-motion behavior, since the component does not provide it.
  • The text must occupy its final width from the first frame, since the visible string grows during the reveal.
  • The interface must work without client-side React or timers.

Install

Installation record for fancy-scramble-in
Declared dependenciesnone declared
Missing on installnone
Bare installbuilds and mounts without the shadcn-style helpers
Providerno provider required in the harness

In a non-shadcn project, copy the TypeScript component into your source tree, ensure React client components and hooks are supported, and provide Tailwind utilities or equivalent styles for visually hidden text, inline layout, and preserved whitespace. TypeScript setups without Node timer types should use a browser-safe interval return type.

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/danielpetho/fancy
License
MIT
Record published
2026-08-14

Alternatives

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