Can I choose which strings to hide and which to leave visible?

No, the tool converts all string values and keys in the JSON structure automatically; selective hiding is not supported.

What escape formats are available for the strings?

The tool offers surrogate pairs (\uHHHH), raw hex bytes (\xHH), and Unicode code points (\u{HHHHH}) as output formats.

Will the output JSON still work in my code after hiding the strings?

Yes, the output remains syntactically valid JSON with escape sequences, so it can be parsed and used in JavaScript environments without breaking the structure.

Is there a limit to the size of JSON I can process?

The material does not specify size limits, but very large payloads may affect processing speed on the web interface.

Developer ToolsFree Tool

Hide JSON Strings

Provided byOnline JSON Toolsonlinetools.com/json

Rewrites string values using JavaScript escape sequences for obfuscation.

Use This Tool

developer json data

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About this tool

What Hide JSON Strings does

The Hide JSON Strings tool on Online JSON Tools rewrites all string values in JSON data using JavaScript escape sequences, making them unreadable without decoding. Users input their JSON, and the tool outputs a syntactically valid JSON object where every string—including keys and values—is converted into escape formats like \uHHHH, \xHH, or \u{HHHHH}. This obfuscation protects sensitive information within payloads while preserving the JSON structure, allowing the data to remain functional in JavaScript environments. It is designed for developers and security analysts who need to mask string content in large JSON files without altering the data's integrity.

Step by step

How to use the Online JSON Tools Hide JSON Strings

1
Load your JSON data into the input field on the Hide JSON Strings page
2
The tool automatically converts all string values and keys to JavaScript escape sequences
3
Choose an escape format in the options if desired, such as surrogate pairs, raw hex bytes, or Unicode code points
4
Copy the obfuscated JSON output or minify it further to increase readability difficulty

Is it right for you

Best for

Developers and security analysts who need to visually mask sensitive string information in JSON payloads while keeping the data syntactically valid for JavaScript use.

Limitations

No unit switching between escape formats without re-running the tool
Results are estimates of obfuscation effectiveness rather than security guarantees
Ads may appear on the page interface

Questions

Hide JSON Strings FAQ

Can I choose which strings to hide and which to leave visible?: No, the tool converts all string values and keys in the JSON structure automatically; selective hiding is not supported.
What escape formats are available for the strings?: The tool offers surrogate pairs (\uHHHH), raw hex bytes (\xHH), and Unicode code points (\u{HHHHH}) as output formats.
Will the output JSON still work in my code after hiding the strings?: Yes, the output remains syntactically valid JSON with escape sequences, so it can be parsed and used in JavaScript environments without breaking the structure.
Is there a limit to the size of JSON I can process?: The material does not specify size limits, but very large payloads may affect processing speed on the web interface.

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