Run results for: Dompurify vs sanitize-html vs js-xss

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:98.0) Gecko/20100101 Firefox/98.0

Browser: Firefox 98

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
DOMPurify	15926.5 Ops/sec
Sanitize HTML	64399.4 Ops/sec
js-xss	183074.6 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/sanitize-html/1.27.5/sanitize-html.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/dompurify/2.2.7/purify.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/js-xss/0.3.3/xss.min.js"></script>

Tests:

DOMPurify
const testString = ` Welcome to safeland <a href='javascript:alert(1)'>This is fun</a> <img src=x onerror=console.log(1)> ` const result = DOMPurify.sanitize(testString)
Sanitize HTML
const testString = ` Welcome to safeland <a href='javascript:alert(1)'>This is fun</a> <img src=x onerror=console.log(1)> ` const result = sanitizeHtml(testString)
js-xss
const testString = ` Welcome to safeland <a href='javascript:alert(1)'>This is fun</a> <img src=x onerror=console.log(1)> ` const result = filterXSS(testString)

Run results for: Dompurify vs sanitize-html vs js-xss

DOMPurify

Sanitize HTML

js-xss