String Escaper & Unescaper
Safely escape and unescape special characters, quotes, and newlines for JSON, Java, C#, SQL, Bash, and Regex.
What is the Online String Escaper & Unescaper?
The NexTools String Escaper & Unescaper is a versatile developer utility designed to escape and unescape string literals across all major programming and query languages. In software programming, certain characters carry special syntactic meanings (such as quotation marks `"`, apostrophes `'`, backslashes `\`, and line breaks `\n`). When embedding arbitrary user text into code strings or database queries, unescaped characters cause parsing exceptions, string truncation, and dangerous injection vulnerabilities.
This tool converts reserved characters into language-compliant escape sequences for JSON, JavaScript, Java, C#, SQL, Bash, XML, and Regular Expressions, and reverses escaped sequences back into raw human-readable text.
Key Capabilities & Features
Multi-Language Escape Rules
Dedicated escaping logic for JSON/JS, Java, C#, SQL queries, Unix Bash shells, XML/HTML, and Regular Expressions.
Bidirectional Escape & Unescape
Switch seamlessly between escaping raw text and unescaping messy log strings back into readable text.
Regex Metacharacter Protection
Escapes regex special characters (`.`, `*`, `+`, `?`, `^`, `$`, `[`, `]`, `(`, `)`) to use arbitrary strings as literal pattern matches.
Client-Side Security
All conversions execute in your browser's local memory. No proprietary code, passwords, or SQL strings are transmitted.
How to Escape Strings Online
Choose Escape or Unescape Mode
Select "Escape String" to format text for code embedding, or "Unescape String" to restore raw characters.
Select Syntax Target
Choose JSON/JS, Java/C#, SQL, Bash, XML, or Regex according to your destination programming environment.
Copy Converted String
Click "Copy Output" to grab your escaped code string and paste directly into your code editor or SQL query.
Frequently Asked Questions (FAQ)
How are single quotes escaped in SQL?
In SQL (ANSI standard), single quotes are escaped by doubling them (`''`). For example, `O'Reilly` becomes `O''Reilly` so the database treats it as a single apostrophe rather than closing the string literal.
What does Regex escaping do?
In regular expressions, characters like `.` (any char), `*` (zero or more), and `?` (optional) have special meaning. Escaping prepends a backslash (e.g. `\.`) so the regex engine matches the literal dot character rather than any wildcard character.
Is this tool safe for confidential passwords and API keys?
Yes. The escaping is performed 100% locally in your web browser using client-side JavaScript. No data is sent over the network or saved to database logs.