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wtf is card?

jessepollak/card — explained in plain English

Analysis updated 2026-06-24

11,712SCSSAudience · developerComplexity · 2/5Setup · easy

TL;DR

A JavaScript library that adds a live-animated credit card graphic to payment forms, updating in real time as users type their card number, name, expiry date, and security code.

Mindmap

mindmap
  root((card))
    What it does
      Animated card UI
      Real time updates
      CSS and HTML only
    Framework wrappers
      React
      Angular
      Vue
      Ember
    Customization
      Placeholder text
      Date format
      Translations
      Split name fields
    Install
      npm
      Bower
      CDN

Code map

Detail Auto

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filefunction / class

Why would anyone build with this?

REASON 1

Add an animated credit card preview to any checkout form with one line of JavaScript.

REASON 2

Customize placeholder text, date format labels, and translations for international payment forms.

REASON 3

Integrate with React, Angular, Vue, or Ember apps using pre-built framework wrappers.

REASON 4

Display a combined name on the card graphic when your form uses separate first and last name fields.

What's in the stack?

JavaScriptjQueryCSSHTMLAngularReactVueEmber

How it stacks up

jessepollak/cardmaterial-components/material-webtwbs/bootstrap-sass
Stars11,71210,94312,506
LanguageSCSSSCSSSCSS
Setup difficultyeasyeasyeasy
Complexity2/52/52/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 5min

Wtf does this do

Card is a JavaScript library that adds an animated, realistic credit card graphic to any payment form on a website. As a user types their card number, name, expiry date, and security code into the form fields, a visual card on screen updates in real time to reflect what they are typing. The card image even flips over to show the back when the user moves to the security code field. The library works with plain JavaScript or with jQuery and requires just one line of code to attach it to an existing form. You point it at your form and a container element where you want the card visual to appear, and the library handles the rest. It generates everything using CSS and HTML, so no image files are needed. Card supports several customization options: you can set the width, override the placeholder text, change the date format labels, and provide translations into other languages. For forms that split first name and last name into two separate fields, Card can combine them into a single displayed value on the card graphic. Wrappers are available for popular JavaScript frameworks including Angular, React, Vue, and Ember, so teams using those can integrate the library without writing custom glue code. Installation is available through npm or Bower, and the README includes example code for each approach. This project is a front-end visual enhancement aimed at making payment forms feel more polished and trustworthy. It does not handle payment processing itself, it is purely a user interface layer that sits on top of whatever payment system a site already uses.

Yoink these prompts

Prompt 1
I have an HTML payment form. Show me how to add the jessepollak/card library to give it a live animated credit card graphic.
Prompt 2
How do I configure card.js to translate the placeholder text to Spanish and change the date format label?
Prompt 3
I'm using React for my checkout page. How do I use the React wrapper for jessepollak/card to show an animated credit card preview?
Prompt 4
My payment form has separate first-name and last-name fields. How do I configure card.js to combine them on the card graphic?
Prompt 5
How do I install card.js via npm and point it at my existing payment form container?

Frequently asked questions

wtf is card?

A JavaScript library that adds a live-animated credit card graphic to payment forms, updating in real time as users type their card number, name, expiry date, and security code.

What language is card written in?

Mainly SCSS. The stack also includes JavaScript, jQuery, CSS.

How hard is card to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is card for?

Mainly developer.

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