String To JSON
Convert strings to JSON format easily
Input
Output
What is String to JSON Converter?
Got JSON that's stuck as a string? We've all been there – escaped strings, stringified JSON, or text that needs to become actual JSON. This tool converts all that string data into proper JSON (JavaScript Object Notation) format.
As MDN Web Docs explains, JSON strings often need parsing to become usable objects. Our converter handles escaped strings, stringified JSON (you know, that JSON.stringify output), and text data, turning them all into valid JSON. We follow the RFC 8259 JSON specification, so everything's standard.
Everything happens in your browser – your strings never leave your computer. Convert them to JSON instantly and use them in your apps.
How to Use String to JSON
Follow these steps to convert string data into JSON. Each step uses the actual buttons and panels on this page.
Paste String or Upload File
Paste your string into the left Input panel, or click Upload to load a .json or .txt file. Click Sample to see examples. The tool handles escaped JSON strings, JSON.stringify output, or text that should be parsed as JSON. Example input:
"{\"subscriberId\":\"SUB-1001\",\"plan\":\"Unlimited 5G\"}"Invalid or unparseable strings will show an error.
View Converted JSON
The right Output panel shows the parsed JSON with proper formatting. Escaped characters are unescaped, and the structure is validated per RFC 8259. Both panels use syntax highlighting.
Copy, Minify, or Download
Click Copy to copy the JSON to your clipboard. Click Minify to compress it. Click Download to save as a file. Use Clear on the input panel to start over. All processing runs in your browser.
When You'd Actually Use This
API Development
Convert stringified JSON from API responses back into JSON objects. Essential when APIs return JSON as strings instead of objects.
Database Queries
Convert string data from databases into JSON format. Perfect for working with text columns that contain JSON data.
Escaped Strings
Unescape JSON strings that have been escaped. Converts escaped characters back to proper JSON format for use in applications.
Data Processing
Process string data into JSON format for further manipulation. Essential step in data pipelines and ETL processes.
Common Questions
Is my string data stored?
No. String conversion happens entirely in your browser using JavaScript. Your data never leaves your computer. Check out the ECMA-404 standard for more details.
What types of strings can it convert?
JSON The tool converts escaped JSON strings, stringified JSON (JSON.stringify output), and text data that can be parsed as JSON into valid JSON format.
Does it handle escaped characters?
Yes. The converter properly unescapes characters like \n, \t, \", and others, converting them to valid JSON format.
What if the string isn't valid JSON?
RFC 8259 If the string cannot be converted to valid JSON, you'll see an error message. The tool attempts to parse and convert, but some strings may require manual editing first.
Can I minify the output?
MDN JSON Yes. Click the "Minify" button to compress the JSON output. Useful for reducing file size or for use in production environments.
What's the difference from JSON Parser?
JSON Parser works with already-valid JSON. String to JSON Converter handles string data that needs to be converted to JSON format first, like escaped strings or stringified JSON.
Other JSON Tools You Might Need
String conversion is just one JSON task. Here are other tools that work well together: