⌘ K
curl → node · axios · async/await · headers · body · live

Convert cURL to Node (axios)

Generate an axios call with headers, body and auth filled in. Output uses top-level await so it drops straight into a Node 18+ project.

cURL → Node.js (axios)
Input
161 B
4 lines
Output
296 B
15 lines
Status
ready
live
Ratio
1.84×
out/in
input · curl command
output · node.js (axios)
import axios from "axios";

const res = await axios({
  "method": "post",
  "url": "https://api.example.com/users",
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer abc123"
  },
  "data": {
    "name": "Alice",
    "role": "admin"
  }
});
console.log(res.data);
Quick Start

How to port cURL to Node.js (axios)

The parser collects headers, body and auth into a config object; axios is happy to consume the same shape directly. Top-level await keeps the snippet pasteable inside ESM scripts and serverless handlers.

  1. 01

    Paste cURL

    From DevTools, Postman, an SDK doc — anything that emits a cURL command.

    Parsing is strict-but-tolerant — comments and trailing commas are accepted on input where the source format historically permits them; output stays canonical.

    inputstricttolerantliveparse
    in · sourcecurl · live
    curl -X POST https://api.example.com
    loaded · parsedtarget · ready
  2. 02

    Parser pulls fields

    URL, method, headers, body and basic auth are extracted into a structured shape.

    Conversion preserves type information where the target supports it (numbers stay numeric, booleans stay boolean) so the destination parser never has to re-coerce.

    parsetype-preservinglosslesslivememoised
    url · optionsheaders · live
    { url, method, headers, data }
    options applied · liveround-trip
  3. 03

    Emit Node.js (axios)

    The generator turns the parsed command into idiomatic code for the target stack.

    Re-encoding is idempotent: running output back through the same converter produces the same bytes, which keeps round-trips git-friendly.

    genidempotentround-tripdiff-cleandeterministic
    out · convertedNode.js (axios) · ready
    const res = await axios({ method, url, headers, data });
    converted · livediff-clean
  4. 04

    Copy or download

    Drop into your project and tweak as needed.

    Copy writes via navigator.clipboard.writeText; downloads use the target’s native MIME so editors apply the right syntax highlighting on open.

    exportclipboardtarget MIMEblobclient-side
    ✓ · copiedready · done
    ✓ Copied
    shipped · ready to shipsuccess
Pro tips

Converting between formats, safely

Pick the strictest source format

Lossy formats hide bugs. Choose JSON or YAML as your source-of-truth, convert downstream as needed.

Round-trip in CI

If your converter is idempotent, your CI can verify A → B → A equals the original. Catches subtle data loss.

Numbers vs strings differ

YAML/TOML have a number type; CSV doesn’t. Quote IDs in CSV to keep leading-zero values intact.

Watch character encoding

Source format may be Latin-1 / Windows-1252; target should be UTF-8. Convert encoding before structure.

Preserve comments where you can

YAML and TOML support comments. Don’t silently drop them — they often encode intent.

Schema-aware beats blind

Use a schema to guide conversion. Field types, required-ness, and defaults survive better with structure.

Related toolscURL to fetch()cURL to CodecURL to PythonHAR to cURLcURL to GocURL to Rust
Use Cases

When to port cURL to Node.js (axios)

Migration, polyglot teams, integration tests.

Node services

Wire a curl repro into an Express or Fastify handler. Type information survives: numbers stay numeric, booleans stay boolean, strings stay strings. The destination parser doesn't have to re-coerce, which avoids the "'true' becomes "true"" bug class.

round-trip safe

Serverless

Paste straight into a Vercel or Lambda handler. Run output back through the inverse converter to verify idempotent round-trips in CI. A → B → A should produce byte-identical input — if it doesn't, you've found data loss.

type-preserving

CLI scripts

Build a quick CLI utility from a curl example. Comments and metadata survive where the target format supports them (YAML, TOML, HCL). The tool doesn't silently drop intent-encoded annotations, which keeps your config self-documenting.

schema-aware

Tests

Lift a curl call into a Jest integration test. Pair with a schema (JSON Schema, OpenAPI, Zod, Pydantic) to catch shape drift on either side. Catch breaking changes at conversion time rather than at runtime in production.

lossless

Edge functions

Edge runtimes accept axios with minor tweaks. Output respects target-format conventions: quoting in CSV, indent in YAML, brackets in JSON. Existing parsers don't need patches, and the result drops into legacy pipelines unchanged.

diff-clean

Polyglot hand-off

Hand a curl off to a Node team in their idiom. Encoding-aware: handles UTF-8 vs UTF-16 vs Latin-1 / Windows-1252 transparently. The character-set surprise that breaks "works on my machine" doesn't apply here.

spec-grade
FAQ

Frequently asked questions

Axios offers timeouts, interceptors and richer error handling out of the box. Use cURL to fetch() for a fetch-flavoured snippet.
Yes — curl's -u user:pass becomes auth: { user, pass } on the axios config.
JSON bodies parse and pass as data; raw bodies pass as a string. Set Content-Type explicitly if you override the body shape.
No — basic --data only. Add responseType: 'stream' manually for downloads.
No. Parsing and code generation run locally in your browser.
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