A simple node library for generating PNG captcha images.
To install the png-captcha, you can use npm:
npm install png-captcha
import fs from 'fs'
import pngCaptcha from 'png-captcha'
const options = {
size: 6, // Number of characters in the captcha text
noise: 2, // Level of noise in the captcha image
// Add more options as needed
}
const captcha = pngCaptcha.create(options)
// Captcha properties
console.log('Captcha Text:', captcha.text)
console.log('Captcha Width:', captcha.width)
console.log('Captcha Height:', captcha.height)
// Use as base64 image URL
const base64imageURL = `data:image/png;base64,${captcha.image.toString('base64')}`
// Save captcha to a PNG file
fs.writeFileSync('captcha.png', captcha.image)
-
size
: Number of characters in the captcha text. -
noise
: Number of noise lines in the captcha image. -
background
: Background color the image. -
color
:true
to enable color in the image. -
width
: Width of the image. -
height
: Height of the image. -
fontSize
: Text size of captcha text.
This project uses svg-captcha and @resvg/resvg-js libraries.