Getting Started

Install

Install the package that matches your platform:

# Core package (Web / Vanilla JS)
pnpm add @captcha-pro/core

# Vue 2
pnpm add @captcha-pro/vue2

# Vue 3
pnpm add @captcha-pro/vue

# React
pnpm add @captcha-pro/react

# Mini-program (WeChat / uni-app / Taro)
pnpm add @captcha-pro/weixin

For native platforms, see Platforms.

# Flutter — add to pubspec.yaml
captcha_pro: ^2.0.0

# Android — add to build.gradle
implementation 'com.captcha.pro:captcha-sdk:2.0.0'

# iOS — CocoaPods
pod 'CaptchaPro', '~> 2.0.0'

Your First Captcha

<div id="captcha"></div>

<script type="module">
  import { SliderCaptcha } from '@captcha-pro/core'

  const captcha = new SliderCaptcha({
    el: '#captcha',
    width: 300,
    height: 170,
    onSuccess: () => console.log('Verification passed!'),
    onFail: () => console.log('Verification failed!')
  })
</script>

Requirements

• Node.js: >=18
• Browser: Chrome, Firefox, Safari, Opera, IE 11+ (IE11 needs a Promise polyfill)
• Bundle size: ~35KB minified, no runtime dependencies

Build Outputs

File	Format	Size	Use Case
index.mjs	ESM	35KB	Bundlers (webpack, vite, rollup)
index.cjs	CommonJS	36KB	Node.js, older bundlers
index.global.js	IIFE	57KB	Browser (development)
index.global.min.js	IIFE	34KB	Browser (production)

Next Steps

• Basic Usage — Slider, click, popup and invisible examples
• Advanced Usage — Security, backend mode, statistics, i18n
• Components — Per-captcha-type options and methods