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captcha-generator-react
Advanced tools
A lightweight utility to generate image-based captchas using the HTML5 Canvas API. Returns a base64 image and the corresponding captcha text for easy verification.
A lightweight utility to generate image-based captchas using the HTML5 Canvas API. Returns a base64 image and the corresponding captcha text for easy verification.
Using npm
npm install captcha-generator-react
Using pnpm
pnpm add captcha-generator-react
import generateCaptcha from "generate-captcha";
import { useEffect, useState } from "react";
function CaptchaGenerator() {
const [captcha, setCaptcha] = useState("");
const [captchaText, setCaptchaText] = useState("");
const [captchaImage, setCaptchaImage] = useState(null);
useEffect(() => {
const { text, imgUrl } = generateCaptcha();
setCaptchaText(text);
setCaptchaImage(imgUrl);
}, []);
return (
<>
<img src={captchaImage || undefined} alt="" className="mb" />
<form
onSubmit={(e) => {
e.preventDefault();
console.log();
console.log(captchaText === captcha);
}}
>
<input
type="text"
name="captcha"
onChange={(e) => {
setCaptcha(e.target.value);
}}
/>
<button>Submit</button>
</form>
</>
);
}
export default CaptchaGenerator;
if you want to adjust the height, width or length of the captcha, just include it as an object in the generateCaptcha() function's parameter.
const { text, imgUrl } = generateCaptcha({ length: 4 }); // generates a captcha of 4 characters.
const { text, imgUrl } = generateCaptcha({ length: 7, height: 50, width: 220 }); // generates a captcha where the height is 50 pixels, width is 220 pixels and the length is 7.
FAQs
A lightweight utility to generate image-based captchas using the HTML5 Canvas API. Returns a base64 image and the corresponding captcha text for easy verification.
The npm package captcha-generator-react receives a total of 5 weekly downloads. As such, captcha-generator-react popularity was classified as not popular.
We found that captcha-generator-react demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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