Advanced Form Data to JSON Converter

Convert URL encoded, multipart form data, and plain text to JSON format instantly with 100% accuracy. No page reload required.

Input Form Data

Converting...

Form data converted successfully!

Tip: For multipart data, our converter handles both formatted (with line breaks) and unformatted (single line) inputs automatically.

JSON Output

Example Inputs

Formatted Multipart:
------WebKitFormBoundaryABC123 Content-Disposition: form-data; name="name" John Doe ------WebKitFormBoundaryABC123 Content-Disposition: form-data; name="file"; filename="test.txt" Content-Type: text/plain File content here ------WebKitFormBoundaryABC123--
Unformatted Multipart (Single Line):
------WebKitFormBoundaryABC123 Content-Disposition: form-data; name="name" John Doe ------WebKitFormBoundaryABC123 Content-Disposition: form-data; name="file"; filename="test.txt" Content-Type: text/plain File content here ------WebKitFormBoundaryABC123--
URL Encoded:
name=John+Doe&email=john%40example.com&age=30&subscribe=true
Plain Text:
name: John Doe email: john@example.com age: 30 subscribe: true