String Escaper & Unescaper
Safely escape or unescape text for JSON, HTML entities, JavaScript literals, CSV cells, SQL strings, and regular expressions.
Multi-Format String Escaper
Safely encode special characters for JSON payloads, HTML markup, or SQL queries.
Hello \"World\"!\nThis is a multiline string with \t tabs.
Client-Side Multi-Format String Escaping & Unescaping
Handling special characters across different code environments, such as double quotes in JSON, angle brackets in HTML markup, tabs and newlines in JavaScript strings, or single quotes in SQL queries, frequently causes syntax breaks or security vulnerabilities like XSS and SQL injection if improperly escaped.
The String Escaper & Unescaper provides an interactive, client-side utility to encode or decode special characters across six common developer formats: JSON strings, HTML entities, JavaScript string literals, CSV cells, SQL string literals, and regular expression patterns.
Core Tool Capabilities
- Six Encoding Formats: Supports JSON, HTML entities, JavaScript/Java literals, CSV cell escaping, SQL strings, and Regex operators.
- Bidirectional Transformation: easily switch between Escape and Unescape directions or click 'Swap' to reverse operations.
- Character Count Delta: Compare input character count vs output character count in real time.
- Instant Copy: Copy transformed string results directly to clipboard with a single click.
Local Browser Privacy
Your files are processed locally on your device. Files are not uploaded, transmitted, or stored on remote servers.
Once the page has loaded, you can disconnect your network connection and continue using this tool offline.
Target Use Cases
- • JSON Payload Construction
- • HTML XSS Prevention
- • SQL Literal Sanitization
- • Dynamic Regex String Escaping
Technical Specifications & Platform Limits
Multi-language developer string character encoding
Two-way string transformation support
Runs entirely in client memory without external network calls
No text data is stored or transmitted
Step-by-Step Workflow
Select Encoding Format
Choose your target format (JSON, HTML, JavaScript, CSV, SQL, or Regex).
Select Direction
Choose 'Escape' to encode special characters or 'Unescape' to decode escaped sequences.
Enter Text
Paste your raw text into the input editor.
Copy Result
Click 'Copy' to copy the escaped output string to your clipboard.
Practical Real-World Use Cases
JSON Payload Construction
Developers safely embed multiline text or strings containing quotes into JSON request objects.
HTML XSS Prevention
Developers convert `< > & " '` characters into safe HTML entities before rendering user content.
SQL Literal Sanitization
Developers escape single quotes (`'`) in raw SQL strings to prevent syntax breaks.
Dynamic Regex String Escaping
Developers escape special regex operators (`. * + ? ^ $ ( ) [ ]`) when constructing dynamic RegExp instances.
Frequently Asked Questions
- How does the JSON escaper handle newlines and quotes?
- It converts newlines to `\n`, carriage returns to `\r`, tabs to `\t`, and double quotes to `\"` according to RFC 8259 JSON specification.
- Is my text data safe?
- Yes. All escaping and unescaping operations execute entirely inside your web browser instance without sending text to any external server.
- Can I swap the input and output text?
- Yes. Click the 'Swap' button to move the transformed result to the input area and toggle between Escape and Unescape modes.
- Does the CSV escaper handle double quotes inside cells?
- Yes. It wraps the string in double quotes and escapes internal double quotes as `""` according to RFC 4180 CSV standard.
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Master this tool with Guides & Articles
Learn the workflows, common mistakes, and advanced techniques behind String Escaper/Unescaper with our deep-dive educational content.
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