Turn arbitrary text into a ready JSON string literal (quotes, line breaks escaped) - locally, with no upload.
Running locally on your device ...
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Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
Anyone who wants to embed text in JSON or source code must escape it: quotation marks, backslashes, line breaks and tabs have a special meaning there and would break the surrounding code. This tool takes your raw text and outputs it as a valid JSON string literal - including the surrounding quotation marks - that you can safely paste into a JSON file or into code.
Specifically, double quotation marks, backslashes and control characters such as line break and tab are rewritten into their escaped forms (\" \\ \n \t). The result matches exactly what a programming language produces when serializing a string, and can be turned back losslessly into the original text when read in.
The conversion runs entirely locally in your browser in pure JavaScript - your text is not uploaded, not stored, and no foreign library is loaded from a CDN. You can download the result as a text file or copy it straight into your file.
| Input formats | Text input |
|---|---|
| Output format | TXT |
| Batch processing | No |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: The tool produces a single JSON string literal from the entire input text (with surrounding quotation marks). It does not format a whole JSON document - the JSON formatter tool is for that. Very large texts are limited by your device memory.
No. The conversion runs entirely locally in your browser; your text never leaves your device and is not stored.
Double quotation marks, backslashes and control characters like line break (\n) and tab (\t) - exactly what a valid JSON string literal requires.
Yes. The output is a complete literal including the surrounding quotation marks, so you can use it directly as a value in JSON or code.
A JSON string literal can be turned back losslessly into the original text by any JSON parser when read in.