How it works
Paste or type your text in the box and Form Data to JSON transforms it instantly — no button to press. The result updates live as you edit, runs entirely in your browser, and you can copy the output with one click.
Examples
- “name=Ada&age=36&city=London” → “{ ⏎ "name": "Ada", ⏎ "age": "36", ⏎ "city": "London" ⏎ }”
Frequently asked questions
How do I use the Form Data to JSON?
Paste or type your text into the input box. Form Data to JSON processes it live and shows the result immediately — then just copy it. There is no limit on how much text you can process.
Is my data private?
Yes. The Form Data to JSON runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.
Is the Form Data to JSON free?
Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on developer tools and the rest of the platform, you can use it as often as you like.
Popular in Developer Tools
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Regex Tester
Test regular expressions against text with live match highlighting.
Hash Generator (SHA)
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes from text.
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal.