JSON ↔ String Converter

Convert JSON to escaped strings for embedding in code, or unescape string litera...

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Converter Features

Auto Direction - Smart detection based on input shape
4 Quote Styles - Double, single, backtick, raw
Iterative Decode - Handles up to 8 levels of escaping
JS Object Support - Unquoted keys and trailing commas
One-Click Copy - Copy output to clipboard instantly
Fullscreen Mode - Distraction-free editing

Why Use JSON ↔ String Converter?

Two-Way Conversion

Convert JSON to escaped strings for embedding, or decode escaped string literals back into readable JSON.

Auto-Detect Direction

Paste anything and the tool figures out whether you meant to escape or unescape — toggle Auto/Manual anytime.

Multi-Level Unescape

Handles double- and triple-escaped strings from logs, DB dumps, or nested API payloads automatically.

Multiple Quote Styles

Output as double-quoted, single-quoted, template literal, or raw escaped content — match your target language.

100% Client-Side

Everything runs in your browser. Your JSON never hits a server.

Instant Preview

Live conversion as you type, with byte and character counters on both sides.

Common Uses

Embedding JSON in Code

Turn a config object into a single-line escaped string ready to paste into JS, Python, or Go source.

Reading Log Output

Unescape JSON pulled from log lines, CloudWatch events, or console.log output.

DB Field Debugging

Decode JSON stored as an escaped string column so you can actually read it.

HTTP & CLI Payloads

Encode JSON for curl --data, HTTP headers, or CI environment variables with the right quote style.

How It Works

1

Paste JSON or Escaped String

Drop in a JSON object to escape, or an escaped string literal (with or without outer quotes) to decode.

2

Pick Direction & Format

Auto-detect works for most cases. Switch quote styles (double, single, backtick, raw) for encode, or indent size for decode.

3

Copy the Result

Output updates live. Use Copy for one-click clipboard, or Swap to round-trip the result back through the tool.

Tips & Best Practices

Use Auto Mode First

Leave direction on Auto — the detector reads the shape of your input and picks the right side. Override only when it guesses wrong.

Pick Quotes for Your Target

Embedding in a JS template literal? Pick backtick. Python f-string? Single. Curl with --data? Double. Raw gives you escaped content without outer quotes.

Swap to Round-Trip

After converting, click Swap to feed the output back through. Lets you sanity-check that encode + decode produce your original JSON.

Frequently Asked Questions

It takes a JSON object or array and converts it into an escaped string literal you can paste directly into code — for example, embedding JSON inside a JavaScript, Python, or shell string.
It unescapes a string literal (like one you copied from source code, logs, or a database field) and formats it as readable, indented JSON.
Yes. The decoder iterates — it keeps unescaping until it lands on a valid JSON object or array, or until no more escape sequences remain.
For encoding: double quotes (JSON.stringify-compatible), single quotes (JS/Python), template literals (backtick with escaped ${ and `), and raw (escaped content only, no outer quotes).
Yes. Unquoted keys, single-quoted strings, trailing commas, and console placeholders like [Object], undefined, and NaN are normalised before conversion.
Every conversion happens client-side in your browser. Nothing is uploaded or logged.

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