Form URL Encoded Converter

API & Web

Convert HTML form request bodies between encoded text and JSON.

Parameters

Mode

Input

Output

Auto-calculate

0 characters · 0 bytes

Use cases

When to use Form URL Encoded Converter

Convert HTML form request bodies between encoded text and JSON.

1Decode a copied form request body

2Prepare a form body for an API request

3Preserve repeated checkbox or tag fields

4Parse URLs, run XPath queries, and inspect HTTP status codes

5Build minimal reproducible HTTP requests for frontend/backend debugging

6Review error codes and API compatibility before release

Guidance

This converter handles URL-encoded form text; it does not parse multipart/form-data or binary file uploads.

Inspect the components and query parameters of an absolute URL.

Look up the standard meaning of an HTTP response status.

Turn common cURL requests into JavaScript Fetch or Axios code.

Test HTTP APIs directly from the browser.