String to JSON Converter
Take a JSON-serialized string — the kind you get when an API double-encodes a response or a database stores JSON as a quoted text field — and convert it back to a properly parsed JSON object or value. The tool automatically strips outer quotes, unescapes \", \n, and \\ sequences, then parses the result; a pretty-print toggle formats the output with indentation for easy reading. Paste text, upload a file, or load from a URL — everything runs instantly in your browser.
String
Processing Options
JSON
What is String to JSON Converter?
localStorage only stores strings. Environment variables only hold strings. Some database columns are VARCHAR, not JSONB. When you need to store a JSON object in any of these string-only contexts, you need JSON.stringify() — but you also need to know what the stringified result looks like before you store it. This tool produces the escaped, single-line string representation of any JSON object or array: double quotes become backslash-quote, backslashes are doubled, and the entire structure is compacted to a single line. Choose whether to wrap the output in outer double quotes (making it a complete JSON string literal, ready to embed as a value inside another JSON document) or strip them for direct assignment. Toggle forward-slash escaping for HTML-safe embedding in script tags. The inverse operation — parsing a stringified JSON string back into a formatted object — is available in the String to JSON tool.
How to Use
- 1
Paste Your JSON String
Paste the stringified JSON value into the input panel — this is a JSON string whose value is itself a JSON document, typically recognised by its outer double-quotes and internal backslash escapes.
- 2
Set Parsing Options
Choose whether to auto-detect and strip surrounding outer quotes, handle double-encoded JSON (where the inner value is itself a string), and select the output indentation level.
- 3
Parse the String
Click "Parse to JSON". The tool removes the outer string encoding, resolves all escape sequences (\", \n, \t, \\), and parses the result into a formatted JSON object or array.
- 4
Copy the Parsed JSON
Copy the clean, formatted JSON for use in your code editor, REST client, or debugging session — or download it as a .json file.
Common Use Cases
Environment Variable Parsing
Parse JSON strings stored in environment variables (DATABASE_CONFIG, FEATURE_FLAGS) back into JavaScript objects at application startup, safely handling malformed or empty values.
localStorage Data Retrieval
Parse JSON strings retrieved from localStorage or sessionStorage back into objects, with error handling for corrupted or stale data that can no longer be parsed safely.
API Response String Unwrapping
Some APIs return double-encoded JSON — a JSON string containing another JSON string. Use this tool to unescape and parse the inner JSON value to access the actual structured data.
Log Payload Inspection
Application logs often contain JSON-stringified payloads embedded as string values. Parse these strings back into formatted JSON for readable inspection and debugging.
Conversion Examples
JSON String → Parsed JSON Object
A stringified JSON value is unescaped and parsed into a formatted object.
Input JSON
"{"name":"Alice","role":"admin","active":true}"Output CSV
{
"name": "Alice",
"role": "admin",
"active": true
}Double-Encoded JSON → Parsed Object
Handles JSON strings that have been serialised twice (common in logs and webhooks).
Input JSON
"{\"user\":{\"id\":1,\"name\":\"Alice\"},\"action\":\"login\"}"Output CSV
{
"user": {
"id": 1,
"name": "Alice"
},
"action": "login"
}