Sanitize user input to prevent HTML injection, SQL injection, XSS attacks, and other security threats. Clean and encode data for safe use in applications.
Apply all sanitization methods
About Data Sanitization
HTML Encoding
Converts < > & " ' to HTML entities
SQL Escaping
Escapes quotes and special SQL characters
XSS Prevention
Removes or encodes script tags and event handlers
URL Encoding
Percent-encodes special URL characters
Why Sanitize Data?
User input should never be trusted. Proper sanitization prevents injection attacks that could compromise your application, database, or users.
Frequently Asked Questions
What is HTML entity encoding?
HTML entity encoding converts special characters like < > & " to their HTML entity equivalents, preventing HTML injection.
What is SQL injection?
SQL injection attacks insert malicious SQL code through user input. Escaping special characters prevents these attacks.
What is XSS?
Cross-Site Scripting (XSS) injects malicious scripts into web pages. Sanitizing removes or encodes script tags and event handlers.
Should I sanitize on input or output?
Best practice is to validate and sanitize on input, then encode on output based on context (HTML, URL, JavaScript, etc.).