String Escaper — Escape HTML, JavaScript, JSON & SQL
Escape and unescape strings safely for various formats with our String Escaper Tool. The tool supports HTML, XML, JavaScript, JSON, SQL, and CSV and automatically converts special characters into the correct escape sequence for each context. With the auto-processing feature, conversion happens in real-time during input. Character and byte counting helps monitor string length. Ideal for developers working with dynamic data who want to avoid SQL injection, XSS, or other security issues.
Client-Side Only
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Features
- HTML/XML Escape – Encode special characters like <, >, &
- JavaScript Escape – Handle quotes, newlines, and special characters
- JSON Escape – Proper escaping for JSON strings
- SQL Escape – Protect against SQL injection
- CSV Escape – Handle quotes and delimiters
- Client-side processing (privacy-first)
- Copy to clipboard with one click
Common Use Cases
Security
- Prevent XSS attacks with HTML escaping
- SQL injection prevention
- Safe string output in JavaScript
- Secure data in JSON APIs
Data Processing
- CSV export with proper escaping
- XML/HTML content sanitization
- JavaScript string literals
- Database query preparation
Useful Resources
Wikipedia: Escape Character Beginner-friendly introduction to escape sequences and characters
OWASP XSS Prevention Cheat Sheet Comprehensive guide to preventing Cross-Site Scripting attacks
MDN JavaScript String Reference Complete documentation for JavaScript string methods and escaping
OWASP SQL Injection Prevention Best practices for preventing SQL injection vulnerabilities
W3C HTML5 String Escaping Official specification for escaping strings in HTML