TOOL

HTML Sanitize

Sanitize HTML with tag/attribute/URI whitelists (removes scripts, event handlers, unsafe URIs).

Input

Try an example:

Output

Local only

Recent history

No history yet

How to use

Type or paste your input into the input box.
Adjust any parameters if needed.
Copy or download the result.

Frequently asked questions

Is my data uploaded anywhere?: No. All processing happens locally in your browser with no server round-trip.
Does this tool work offline?: Yes. Once the page loads, the tool runs entirely client-side and needs no network connection.

Tutorials using this tool

How to Build a Secure API Gateway

Design a secure API gateway that handles authentication, rate limiting, request validation, and threat protection for backend services.

How to Use Content Security Policy Level 3

Configure a strict Content Security Policy (CSP3) with nonces and hashes to prevent XSS, data exfiltration, and code injection attacks.

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