Request Body Builder — Build JSON/XML Body

Build request body: JSON, XML, form. Schema-driven or freeform. For POST/PUT.

Request Body Builder: Build request body: JSON, XML, form. Schema-driven or freeform. For POST/PUT. Useful for creating test fixtures, seed data, mock API responses, or documentation examples with correct formatting. Browser-only execution: your data exists only in memory while the tab is open. Available in HttpStatus.com's API Tools toolkit.

Frequently Asked Questions

Can I customize what Request Body Builder generates?

Yes. Options typically include count, format variant, and type-specific parameters.

Can I send results to a teammate?

Many tools support shareable links. Look for the share button after processing your input.

What's the size limit for input?

Client-side tools use your device's memory, so they handle up to several megabytes. Very large inputs may slow the tab.

Why use a browser tool instead of the command line?

No installation, works on any device, and results are shareable via URL. CLI tools are still better for CI/CD pipelines.

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