inorganik/countUp.js

Health v2 · maintenance only

Adoption not part of the score

8159 stars · 1354 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

CountUp.js is a dependency-free, lightweight JavaScript/TypeScript class that animates a numerical value by counting up or down to it in the browser. It offers extensive options for formatting, easing, custom numerals, and auto-animation when elements become visible.

Use cases

• animate a counter on a landing page when it scrolls into view
• count up statistics numbers on a dashboard
• animate odometer-style number rollouts
• display animated numeric values in React, Vue, Angular, or Svelte apps
• count down from one number to another with easing
• format animated numbers with grouping separators and custom numerals

When to choose

• you need a tiny, dependency-free number animation for any browser
• you want framework integrations for Angular, React, Vue, or Svelte
• you need customizable formatting like decimal places, separators, prefixes, and alternate numeral systems

When to avoid

• you need general-purpose animation of non-numeric UI elements
• you need canvas or WebGL-based animation
• you need server-side rendering of animated values

Facets

library · maturity stable

animation ui-components data-visualization web-development frontend browser cross-platform countup number-animation typescript dependency-free odometer nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="inorganik/countUp.js")