JSON Body Builder
Build a JSON body from key=value pairs (value types are detected). Everything is processed on your device, nothing is sent to a server.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
name=Aji age=30 active=true
Example Output
{
"name": "Aji",
"age": 30,
"active": true
}How to Use
- 1Fill the input fields with your data (or paste the text to process).
- 2If there are options, adjust them to your needs.
- 3Click Run (or press Ctrl+Enter) to build.
- 4The result appears in the Result area. Click Copy to copy it.
About JSON Body Builder
The JSON Body Builder turns simple key=value pairs into a nicely formatted JSON object. Values that look like numbers, booleans, or JSON are type-detected automatically (e.g. age=30 → 30, active=true → true). Useful for assembling POST/PUT request bodies.
In the browser.
FAQ
Are any network requests sent?
No. This tool only transforms/analyzes text in your browser — no actual HTTP request is sent, and your data never leaves your device. (Tools that truly call an external server are intentionally not provided due to browser CORS limits.)
Is my data safe?
Yes. All processing happens entirely locally in your browser. Nothing is uploaded, logged, or stored on our servers.