# DOMPurify vs PreEmptive Dotfuscator: side-by-side comparison (2026)

[DOMPurify](https://cybersectools.com/tools/dompurify) is a free [runtime application self-protection](https://cybersectools.com/categories/rasp) solution. [PreEmptive Dotfuscator](https://cybersectools.com/tools/preemptive-dotfuscator) is a commercial [runtime application self-protection](https://cybersectools.com/categories/rasp) solution by [PreEmptive](https://cybersectools.com/companies/preemptive). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | DOMPurify | PreEmptive Dotfuscator |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Runtime Application Self-Protection | Runtime Application Self-Protection |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| GitHub stars | 16,746 | – |
| Last commit | Mar 2026 | – |
| Company | – | PreEmptive |
| Headquarters | – | – |

### Use cases and capabilities

| | DOMPurify | PreEmptive Dotfuscator |
|---|---|---|
| Node.js | Yes | – |
| XSS | Yes | – |
| Obfuscation | – | Yes |
| App Security | – | Yes |
| Reverse Engineering | – | Yes |
| Android Security | – | Yes |

### Core features

**DOMPurify**

No features listed.

**PreEmptive Dotfuscator**

10 features listed. Sign in on the page to see them.

### Integrations

**DOMPurify**

No integrations listed.

**PreEmptive Dotfuscator**

1 integration listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [DOMPurify](https://cybersectools.com/tools/dompurify) fits if you want a cloud product, you are a startup, you need a free product and you want an open-source product.
- [PreEmptive Dotfuscator](https://cybersectools.com/tools/preemptive-dotfuscator) fits if you need to run it on your own servers.

## DOMPurify vs PreEmptive Dotfuscator FAQ

Common questions when comparing DOMPurify vs PreEmptive Dotfuscator for runtime application self-protection.

### What is the difference between DOMPurify and PreEmptive Dotfuscator?

**DOMPurify**: DOMPurify is a fast XSS sanitizer for HTML, MathML, and SVG.

**PreEmptive Dotfuscator**: C# obfuscation & encryption tool for .NET, MAUI, and Xamarin apps. Built by PreEmptive.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes DOMPurify and PreEmptive Dotfuscator?

**DOMPurify** is open-source with 16,746 GitHub stars. **PreEmptive Dotfuscator** is made by PreEmptive. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is DOMPurify a good alternative to PreEmptive Dotfuscator?

Often, yes. DOMPurify and PreEmptive Dotfuscator are both Runtime Application Self-Protection products. Key differences: DOMPurify is Free while PreEmptive Dotfuscator is Commercial, DOMPurify is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [DOMPurify vs OneSpan Product](https://cybersectools.com/compare/dompurify-vs-onespan-product)
- [DOMPurify vs Digital.ai Application Security](https://cybersectools.com/compare/digitalai-application-security-vs-dompurify)
- [DOMPurify vs Blue Cedar Enforce](https://cybersectools.com/compare/blue-cedar-enforce-vs-dompurify)
- [PreEmptive Dotfuscator vs OneSpan Product](https://cybersectools.com/compare/onespan-product-vs-preemptive-dotfuscator)
- [PreEmptive Dotfuscator vs Digital.ai Application Security](https://cybersectools.com/compare/digitalai-application-security-vs-preemptive-dotfuscator)
- [PreEmptive Dotfuscator vs Blue Cedar Enforce](https://cybersectools.com/compare/blue-cedar-enforce-vs-preemptive-dotfuscator)

## Alternatives to each

- [See all DOMPurify alternatives](https://cybersectools.com/alternatives/dompurify)
- [See all PreEmptive Dotfuscator alternatives](https://cybersectools.com/alternatives/preemptive-dotfuscator)

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Source: https://cybersectools.com/compare/dompurify-vs-preemptive-dotfuscator

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/dompurify.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on DOMPurify and PreEmptive Dotfuscator: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md