curl to Node.js Converter

What is curl to Node.js Converter

Last reviewed: April 18, 2026

JavaScript is the programming language of the web, running in every modern browser and powering most interactive frontends and Node.js backends.

curl to Node.js Converter parses your curl command and produces an equivalent Node.js snippet using the built-in `node:https` module, including URL parsing, header setup, body writes, and basic error handling.

It's ideal when you need a portable Node script that doesn't depend on fetch (e.g. on Node < 18) or on third-party HTTP libraries.

Why use it

• Support legacy Node runtimes without fetch().
• Keep scripts dependency-free (no axios / node-fetch).
• Port curl-based CI steps into Node scripts.
• Teach Node HTTP fundamentals from a familiar starting point.
• Debug TLS / header issues with explicit API code.

Features

• Pure node:https output (no deps)
• Handles headers, body, auth
• URL parsing with node:url
• Basic error handling included
• Runs offline once loaded, great for private curl to Node.js Converter

How to use curl to Node.js Converter

1. Paste curl. Drop your curl command.
2. Click Run. The tool generates a dependency-free Node snippet.
3. Copy to your project. Save as .mjs or adapt for CommonJS.

Example (before/after)

curl https://api.example.com/users -H "X-Key: abc"

import https from "node:https";
import { URL } from "node:url";

const target = new URL("https://api.example.com/users");
const options = {
  hostname: target.hostname,
  port: target.port || (target.protocol === "https:" ? 443 : 80),
  path: target.pathname + target.search,
  method: "GET",
  headers: {
    "X-Key": "abc"
  },
};

const req = https.request(options, (res) => {
  const chunks = [];
  res.on("data", (c) => chunks.push(c));
  res.on("end", () => {
    const body = Buffer.concat(chunks).toString("utf-8");
    console.log(res.statusCode, body);
  });
});

req.on("error", (err) => console.error(err));
req.end();

Common errors

FAQ

Related tools

Pair with the curl-to-fetch converter and JSON / JWT helpers. You can also browse the full Generators category for more options.