Escape JSON String

Escape text as a JSON string literal by encoding quotes, backslashes, newlines, and special characters.

For this tool, processing runs locally in your browser and data is not sent to the server.

Escape JSON String is a free online tool that converts plain text into a valid JSON string literal by escaping quotes, backslashes, newlines, tabs, and other special characters. It can also unescape a JSON string back to readable text. The tool runs in your browser and does not send data to the server.

What it does

Output

Processing

Continue working

Choose a related tool for the next step.

Data passed between tools is kept only in the current browser session.

How to use

Paste the text you want to use as a string value inside JSON.
Choose a mode: escape text or unescape a JSON string.
Configure outer quotes, JSON field output, slash escaping, and Unicode escaping.
Copy the result and paste it into a JSON payload, API request, config, test, or documentation.

More about this tool

Escape JSON String converts plain text into a valid JSON string literal. It escapes double quotes, backslashes, newline characters, tabs, carriage returns, and other control characters so the string can be safely embedded inside a JSON payload.

The tool can also perform the reverse operation: unescape a JSON string and display the original plain text. This is useful when manually assembling API requests, payloads, logs, configs, test data, and documentation where errors like Unexpected token occur because of unescaped quotes or newlines.

All processing is done locally in the browser. Your data is not sent to the server.

Runs in the browser
Data is not sent to the server
Escapes text for use inside JSON strings
Supports reverse unescaping
Escapes quotes, backslashes, and newlines
Can output a ready JSON field
Validates the result with JSON.parse
Helps avoid Unexpected token errors
No registration required

Frequently Asked Questions

What does escaping a JSON string mean?

It means replacing special characters with safe escape sequences — for example, a quote becomes \", a newline becomes \n, and a backslash becomes \\.

When is this tool needed?

It is needed when plain text containing quotes, newlines, tabs, or backslashes must be embedded inside a JSON payload as a string value.

Should outer quotes be included?

If the result is used as a JSON value, outer quotes are usually needed. If you are inserting the content inside existing quotes, copy the result without them.

What does unescaping a JSON string do?

It converts escape sequences back to plain text: \n becomes a newline, \" becomes a quote, and \\ becomes a backslash.

How is this different from the JSON Formatter?

The JSON Formatter works with a complete JSON object or array. This tool operates on a single string value and prepares text for embedding inside JSON.

Why does an Unexpected token error occur?

A common cause is an unescaped quote, newline, or backslash inside a JSON string, which makes the JSON syntactically invalid.

Do I need to escape a forward slash /?

Usually not. JSON permits an unescaped forward slash. The escaped form \/ is sometimes used for compatibility but is not required by default.

What is \uXXXX?

It is a Unicode escape sequence representing a character in JSON. Unicode characters can usually be left in their readable form unless special requirements apply.

Is my data sent to the server?

No. Text is processed locally in the browser and is not sent to the server.

Do I need to register?

No. The tool works immediately without registration.

More about this tool

All processing is done locally in the browser. Your data is not sent to the server.

Runs in the browser
Data is not sent to the server
Escapes text for use inside JSON strings
Supports reverse unescaping
Escapes quotes, backslashes, and newlines
Can output a ready JSON field
Validates the result with JSON.parse
Helps avoid Unexpected token errors
No registration required

Frequently Asked Questions

What does escaping a JSON string mean?

It means replacing special characters with safe escape sequences — for example, a quote becomes \", a newline becomes \n, and a backslash becomes \\.

When is this tool needed?

It is needed when plain text containing quotes, newlines, tabs, or backslashes must be embedded inside a JSON payload as a string value.

Should outer quotes be included?

If the result is used as a JSON value, outer quotes are usually needed. If you are inserting the content inside existing quotes, copy the result without them.

What does unescaping a JSON string do?

It converts escape sequences back to plain text: \n becomes a newline, \" becomes a quote, and \\ becomes a backslash.

How is this different from the JSON Formatter?

The JSON Formatter works with a complete JSON object or array. This tool operates on a single string value and prepares text for embedding inside JSON.

Why does an Unexpected token error occur?

A common cause is an unescaped quote, newline, or backslash inside a JSON string, which makes the JSON syntactically invalid.

Do I need to escape a forward slash /?

Usually not. JSON permits an unescaped forward slash. The escaped form \/ is sometimes used for compatibility but is not required by default.

What is \uXXXX?

It is a Unicode escape sequence representing a character in JSON. Unicode characters can usually be left in their readable form unless special requirements apply.

Is my data sent to the server?

No. Text is processed locally in the browser and is not sent to the server.

Do I need to register?

No. The tool works immediately without registration.