Build cURL and fetch snippets from method, URL, headers, and JSON body without proxying the request.
Generator
Describe the goal, constraints, and format, then produce copy-ready output that can be refined or saved.
Describe the outcome, format, or constraints.
Create a structured draft or package.
Copy, edit, or save the output.
Set method, URL, and headers in options. The tool generates cURL/fetch code only.
Formatted code, generated types, decoded values, or snippets appear here.
Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.
Prompt, options, and generated output
Use the result area as the copy-ready handoff for the next step in your work.
Use API Request Builder when you need to build cURL and fetch snippets from method, URL, headers, and JSON body without proxying the request.
It is designed for quick local checks before you commit code, send a payload, paste into documentation, or hand data to another system.
A: No. It only generates code snippets and never acts as an arbitrary request proxy.
A: Yes, paste one header per line such as Authorization: Bearer token.
Format and validate JSON online: prettify large pasted payloads, minify for APIs, and catch syntax errors before deployment.
Convert JSON to Go struct definitions with tags and options.
Convert JSON to TypeScript interfaces or types.
Convert between JSON and YAML formats with preserved structure.
Convert CSV files to JSON and JSON to CSV with custom delimiters.
Format and beautify SQL queries with syntax highlighting.
Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.