dompurify

DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It's written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Firefox and Chrome - as well as almost anything else usin

cryptia

Cryptia is a simple JavaScript library for encrypting and decrypting text using a basic substitution cipher. It provides an easy-to-use interface for securing text data in client-side applications..