How it works
How to use the JSON Stringify
Paste JSON
Or any text.
Choose options
Keep or drop the surrounding quotes, and optionally escape non-ASCII characters.
Copy the string
Paste it into code, a JSON field or a config value.
When do you need to stringify JSON?
When JSON has to travel inside another string — a field of another JSON document, a message queue payload, a log line or a code literal — its quotes and backslashes must be escaped. That is exactly what JSON.stringify does to a string.
Built for developers
Why developers use it
Private by design
Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.
Instant results
Output updates as you type, with precise error locations when something is wrong.
Works offline
Once loaded, the tool keeps working without a connection. Install it as an app if you like.
Free, no sign-up
No accounts, no limits, no watermarks.
FAQ
Frequently asked questions
How do I reverse it?
Use the String to JSON (unescape) tool or press Swap.
Is my data uploaded anywhere?
No. Everything runs locally in your browser — nothing you paste or open is sent to a server, logged or stored. The tool keeps working offline once the page has loaded.
Keep going
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