Escape / Unescape

Escape and unescape strings for HTML, URL, JSON, CSS, SQL and JavaScript

Input

22 chars

Output

Hello \"World\"\nTab\there

About the String Escape Tool

This tool escapes a string for whichever context it is going into — HTML, JSON, URL, SQL or CSS. Each has different rules, and applying the wrong one is how quotes break syntax and injection bugs appear.

Escaping a string means making its characters safe for the context that will read it. The rules differ per context: HTML needs angle brackets as entities, JSON needs quotes and backslashes prefixed, URLs need percent-encoding, SQL needs quotes doubled, and CSS needs its own backslash form.

Using the wrong escaping is a real class of bug rather than a stylistic slip. HTML-escaping a value bound for a JSON string leaves the quotes unescaped and breaks the parse; URL-encoding something written into HTML leaves the angle brackets live. Context determines the rules.

For SQL specifically, escaping is the fallback and not the answer. Parameterised queries are the correct defence against injection because they never mix data with code. Escape only when building SQL by hand is genuinely unavoidable.

How to use the String Escape Tool

  1. Paste your string. Enter the value that needs escaping.
  2. Choose the target context. Pick HTML, JSON, URL, SQL or CSS.
  3. Read the escaped output. Check that the characters relevant to that context were handled.
  4. Copy the result. Use the escaped value in the right place.

String Escape Tool features

  • Multiple encoding formats
  • HTML entities converter
  • URL encoding/decoding
  • JSON string escape
  • CSS escaping
  • SQL escaping
  • JavaScript string escape
  • Real-time processing
  • Security focused
  • Web development essential

Frequently asked questions

What encoding formats are supported?

Comprehensive support for: HTML entities (&, <, >, ", '), URL encoding (percent-encoding), JSON string escaping, CSS escaping, SQL escaping, and JavaScript string escaping for complete text encoding needs.

How does HTML entity escaping work?

HTML entity escaping converts special characters to safe representations: & → &amp;, < → &lt;, > → &gt;, " → &quot;, ' → &#39;. Prevents HTML injection and ensures proper display in web browsers.

What are the applications of text encoding?

Essential for: web form security, API data transmission, database storage, URL parameters, JSON data handling, CSS content, SQL queries, and preventing injection attacks across web development.

How does URL encoding work?

URL encoding converts unsafe characters to percent-encoded format: spaces → %20, special characters → %XX format. Ensures safe transmission in URLs and HTTP requests per RFC 3986 standards.

Can this handle batch text processing?

Yes! Process large text blocks, multiple lines, and complex content. Maintains formatting and handles mixed content types for efficient batch encoding and decoding operations.

What are the security benefits of proper encoding?

Critical security benefits: prevents XSS attacks, stops SQL injection, avoids HTML injection, ensures data integrity, maintains proper rendering, and protects against malicious content execution.

Is this suitable for professional web development?

Absolutely! Essential for web developers, security engineers, and content managers. Perfect for API development, form processing, content management, and secure web application development.