Awesome GitHub RepositoriesCSS Security Validators

This is an HTML sanitization library designed to remove dangerous tags and attributes from user-submitted HTML to prevent cross-site scripting attacks. It functions as a content filter that whitelists specific elements and attributes while escaping or discarding unauthorized markup. The project includes an HTML transformation engine that allows for the modification or replacement of tags and attributes using custom logic. It also features a CSS style validator to clean inline properties against permitted patterns and a system for resource URL validation to restrict hostnames and schemes. The

bluemonday is a Go library for scrubbing user-generated HTML content to prevent cross-site scripting and other injection attacks. It functions as an HTML policy engine and sanitizer that removes dangerous scripts and malicious tags by applying configurable element and attribute allowlists. The project distinguishes itself through a rule-based system that utilizes regular expressions and name-based lists to define permitted tags, attributes, and CSS styles. It includes a URL security validator that enforces safe protocols and automatically injects security attributes such as nofollow and noope