🌐

HTTP Request Builder

GET · POST · PUT · PATCH · DELETE · Custom Headers · JSON Body

Build, send and inspect HTTP/API requests directly from your browser. Import any cURL command and it auto-populates method, URL, headers and body. Add custom headers, request body, and see full response details. A free lightweight Postman alternative.

✓ All HTTP Methods ✓ Import from cURL ✓ Custom Headers ✓ JSON Body ✓ Request History ✓ Free Forever

🌐 HTTP REQUEST BUILDER Send API requests from your browser

Key	Value

Body Type: JSON Raw Text Form Data

Parameter	Value

Preview: —

Load a sample cURL:

GET Example POST JSON PUT with Auth DELETE POST Form Data Complex Multi-Header

Paste your cURL command

// Parsed Preview — click "Import" to load into builder

Method

—

URL

—

💡 Supported cURL flags

-X / --request — HTTP method

-H / --header — Request headers

-d / --data — Request body

--data-raw — Raw body data

--data-binary — Binary body data

-u / --user — Basic auth → Authorization header

--compressed — Adds Accept-Encoding header

URL without flag — Bare URL is auto-detected

No requests yet — send one to see history

Frequently Asked Questions

Is this a Postman alternative?

Yes! ByteKit HTTP Request Builder lets you send API requests directly from your browser without installing any software. It supports all HTTP methods, custom headers, JSON bodies, and now cURL import.

How does cURL Import work?

Paste any cURL command into the "Import cURL" tab. ByteKit automatically parses the HTTP method, URL, all headers (-H flags), request body (-d flag), Basic Auth (-u flag) and query params, then loads them into the builder. Click ▶ Send to execute it.

Which cURL flags are supported?

ByteKit supports -X (method), -H/--header (headers), -d/--data/--data-raw/--data-binary (body), -F/--form (form data), -u/--user (basic auth), --url (URL), --compressed (adds Accept-Encoding), and bare URLs. Line continuations (\) are handled automatically.

Why might some requests fail?

Requests to APIs that don't allow cross-origin requests (CORS) will fail in the browser. This is a browser security restriction — use a CORS proxy or test from your terminal using the generated cURL command.

Are my requests logged?

No — your requests go directly from your browser to the API. ByteKit never sees your request data, headers, API keys or cURL commands.

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