Escape Multiline Text
Input
Hello "World"!
New Line & \slash\Example output
"Hello \"World\"!\nNew Line & \\slash\\"JSON Escape & Unescape Online
JSON & Data100% Client-SideReady
TEXT
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0 B / 4.77 MB
Read-only
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About this tool, examples & FAQ
Escape raw text, code snippets, and multiline logs for safe insertion into JSON strings, code literals, or HTML scripts. Easily unescape back to human-readable plain text.
Key facts
| Operations | Escape / Stringify (default) and Unescape / Parse |
|---|---|
| Customization | Outer double quotes, forward slash escaping (\/), and Unicode hex (\uXXXX) |
| Maximum Input | 5 MB |
| Execution Deadline | 2 s |
How to use
- Paste your raw string or escaped JSON literal into the editor.
- Choose Escape / Stringify or Unescape / Parse.
- Toggle forward slash escaping or Unicode hex conversion options as needed.
- Click Convert (or press Ctrl/Cmd + Enter) to instantly process the text.
- Copy or download your processed text string.
Examples
Unescape JSON String
Input
"Hello \"World\"!\nNew Line"Example output
Hello "World"!
New LineEdge cases
HTML script safety with forward slashes
When embedding JSON inside inline HTML <script> tags, strings containing '</script>' can break page rendering. Enabling forward slash escaping transforms '/' into '\/', preventing XSS and premature tag closing.
Unicode hex sequences
Non-ASCII characters (e.g. accented letters, symbols, emoji) can optionally be converted to standard \uXXXX 4-digit hex escape sequences for ASCII-only payloads.
Control character escaping
Carriage returns (\r), line feeds (\n), tabs (\t), backspaces (\b), and form feeds (\f) are safely translated to standard JSON two-character escape sequences.
How it works
- Scans character code points and replaces special characters with standard RFC 8259 escape sequences.
- Optionally applies surrounding double quotes or hex Unicode encoding.
- Unescapes valid escape sequences back into their native UTF-8 representations.
- Runs isolated in a Web Worker without network calls.
Related workflows
JSON Formatter
Prettify, indent, and format JSON strings with customizable indentation and key sorting.
JSON Validator
Validate JSON syntax, inspect structure, and diagnose syntax errors with line and column diagnostics.
Base64 Encoder / Decoder
Encode UTF-8 text to standard or URL-safe Base64 and decode Base64 back to text.
URL Encoder / Decoder
Encode and decode URL components, query parameters, and special characters using RFC 3986 percent-encoding or form-urlencoded format.
Frequently asked questions
Why does the escape tool wrap strings in double quotes?
In JSON syntax, all strings must be delimited by double quotes. Wrapping in double quotes produces a complete valid JSON string literal ready to paste into code or configuration files.
Is escaping forward slashes required in JSON?
No, the JSON specification allows but does not require forward slashes to be escaped. However, it is strongly recommended when embedding JSON inside HTML <script> tags to avoid XSS vulnerabilities.
Are my secrets or strings sent to a backend?
No. All escaping and unescaping operations execute 100% locally in your browser. Nothing is sent over the network.
References
- RFC 8259 — The JavaScript Object Notation (JSON) Data Interchange Format (Section 7: Strings) — Specification for string literals and escape sequence rules in JSON