DOMPurify is a free runtime application self-protection solution. Source Defense How it works is a commercial runtime application self-protection solution by Source Defense. Features, integrations, deployment and the company behind each one, side by side.
DOMPurify is a fast XSS sanitizer for HTML, MathML, and SVG.
Client-side security for websites against 3rd party vendor attacks
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
DOMPurify fits if you are a startup, you need a free product and you want an open-source product.
Common questions when comparing DOMPurify vs Source Defense How it works for runtime application self-protection.
DOMPurify: DOMPurify is a fast XSS sanitizer for HTML, MathML, and SVG.
Source Defense How it works: Client-side security for websites against 3rd party vendor attacks. Built by Source Defense.
The table above shows where their features, integrations, deployment and company size fit differ.
DOMPurify is open-source with 16,746 GitHub stars. Source Defense How it works is made by Source Defense. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. DOMPurify and Source Defense How it works are both Runtime Application Self-Protection products. Key differences: DOMPurify is Free while Source Defense How it works is Commercial, DOMPurify is open-source. Use the table above to see where features, deployment and company size fit differ.
No Runtime Application Self-Protection shortlist yet. This is the closest one.
Updated 2026-11-02
See the shortlist
