About This Tool

What does this tool do?

A dedicated JSON string formatting tool that escapes reserved characters (quotes, backslashes, control characters) to ensure valid JSON string literals. Supports optional forward slash escaping (`\/`) to prevent XSS when embedding JSON within HTML `<script>` tags, and unicode transcoding.

When should you use it?

Use this tool when constructing JSON payloads in server-side templates, escaping database queries inside JSON fields, or fixing malformed JSON strings containing unescaped quote characters.

Key Capabilities & Features

Escape JSON strings by safely escaping double quotes, control characters, and backslashes
Unescape stringified JSON payloads back into valid, parseable JSON objects
Fix corrupted JSON strings caused by double stringification or unescaped quotes
Integrated JSON syntax error detection with line number indicators
One-click format and beautification of unescaped JSON structures