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Sanitize HTML

AI / Agent

Strip HTML tags, scripts, styles, and event handlers to produce clean text for LLM ingestion.

Raw HTML scraped from a webpage is full of noise an LLM doesn't need (scripts, styles, tags), and this strips it down to clean plain text using DOM parsing, preserving basic structural breaks like paragraph boundaries while discarding styling and most semantic structure, since the goal is clean text rather than formatted output. It's a good fit for email HTML exports headed into a search index or embedding pipeline. Despite what it removes overlapping with an XSS concern, treat this as a convenience tool for LLM ingestion rather than a hardened security sanitizer. For actual XSS protection on user-generated content, use a maintained library like DOMPurify with a strict allowlist instead. It runs entirely client-side, though very large HTML documents can be slow in the browser and are better handled via the REST API or SDK.

htmlsanitizestripcleanllmscrape

How to use Sanitize HTML

  • 1.Paste raw HTML scraped from a webpage to strip tags, scripts, and styles down to clean plain text before feeding it to an LLM.
  • 2.Use it to remove event handlers (`onclick`, etc.) and inline scripts from untrusted HTML before displaying it anywhere.
  • 3.Run it on email HTML exports to get readable plain text for indexing, search, or embedding pipelines.

Frequently asked questions

Does this run in my browser or on a server?
Sanitization runs entirely client-side using DOM parsing — your HTML isn't sent anywhere.
Is this safe to use as an XSS defense for user-generated content?
Treat it as a convenience tool for cleaning text for LLM ingestion, not a hardened security sanitizer — for XSS protection in a real application, use a maintained library like DOMPurify with a strict allowlist.
Does it preserve any formatting, like paragraphs or lists?
It preserves basic structural breaks (like line breaks between block elements) but discards all styling and most semantic structure, since the goal is clean text, not formatted output.
Can it process a full webpage at once?
Yes, though very large HTML documents (megabytes of markup) may be slow since parsing happens in the browser — for bulk processing, use the REST API or SDK.

Use via API, SDK, or MCP

cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/sanitize-html \
  -H "Authorization: Bearer utx_live_..." \
  -H "Content-Type: application/json" \
  -d '{"html":"<p>Hello</p><script>alert(1)</script>","keepLinks":false}'

Get an API key from your dashboard · Full API docs →

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