Omnikit
DevFilesMoneyAll tools
Ctrl K
Dev toolsFile toolsMoney calculatorsAll tools
HomeDeveloper toolscurl Convertercurl to fetch

curl to fetch

dev

Paste a curl command and get the fetch() call that makes the same request

Runs in your browser. Nothing you type is sent anywhere. Updated on 25 Oct 2026.

Copy a request out of your browser's Network tab as cURL, paste it here, and get the fetch call that sends the same thing. Headers become an object, a JSON body becomes JSON.stringify with the object laid out, a form becomes FormData, and -u becomes a Basic header built with btoa. Where a browser genuinely cannot do what curl did, such as -k or setting Cookie, the code says so in a comment.

Next:
  • HTTP Headers Checker See the status, response headers and redirect chain of any URL, with security checks
  • JSON to TypeScript Generate TypeScript interfaces or types from a JSON sample

How to convert curl to JavaScript fetch

1

In your browser's DevTools, right-click the request in the Network tab and copy it as cURL.

2

Paste it into the curl command box; fetch (browser) is already selected.

3

Read the comments in the code for anything a browser cannot do, such as -k or setting Cookie.

4

Press Copy, or download the code as request.js.

How curl to fetch works

Paste a curl command and get the same request written as browser fetch, Node fetch, Python requests, PowerShell Invoke-RestMethod or HTTPie. The command is split the way a shell would split it, so quoted values, escaped characters and lines joined with a backslash, a caret or a backtick all survive.

The flags people actually paste are handled: -X, -H, -d and every --data variant, --data-urlencode, --json, -u, -F and --form, -G, --compressed, -k, -b, -A, -e, -L, -I, -T, -x and --max-time. A JSON body is laid out as a real object rather than a long string, a form becomes FormData or files=, and -G moves the data into the query string without encoding it twice.

Nothing is ever executed and no request is made. The parser and every generator run in this page, which matters because a pasted command usually contains a live bearer token, a session cookie or a password. It stays in your browser. Even so, swap the secret for an environment variable before the generated code goes into a repository.

The rest of the article, and all 6 questions about curl Converter, are on the curl Converter page.

Frequently asked questions

How do I convert a curl command to fetch?

Paste the whole command, starting with the word curl, and pick fetch. Headers become an object, -d becomes the body, a JSON body is written as JSON.stringify with the object laid out, and -u becomes an Authorization header built with btoa. Copy the result with one click.

Does this run the curl command?

Never. The command is only ever read as text and split the way a shell would split it. No request is made, no file is opened and nothing is executed, so it is safe to paste a command you have not read carefully yet.

Why does my Windows PowerShell curl command fail?

In Windows PowerShell, curl is an alias for Invoke-WebRequest, which takes completely different arguments, so -H and -d are read as something else entirely. Convert the command to PowerShell here to get a real Invoke-RestMethod call, or install curl.exe and call it by its full name.

Can it handle a command copied from browser DevTools?

Yes. Right-click a request in the Network tab and choose Copy as cURL. Those commands use --data-raw, --compressed and a long list of lower-case headers, and are often one very long line or several joined with backslashes. All of that is handled, including the $'...' form Chrome uses when a value contains newlines.

Still stuck? Ask about curl Converter and anybody who knows can answer. No account needed.

More ways to use curl Converter

  • curl ConverterTurn a curl command into fetch, Node, Python, PowerShell or HTTPie code
  • curl to PythonConvert a curl command into a Python requests call with the right arguments
  • curl to Node.jsConvert a curl command into Node fetch, with file reads and Buffer where needed
  • curl to PowerShellConvert a curl command into Invoke-RestMethod, with headers and body as variables
  • curl to HTTPieConvert a curl command into the shorter HTTPie equivalent

On the related tools: TSV to JSON – Convert tab-separated values, such as a paste from Excel, into JSON · Query String Parser – Split a URL query string into a table of decoded parameters.

Related tools

All developer tools
Base64 Encode & DecodeText and files to Base64 and back, with URL-safe mode and image previewUnix Timestamp ConverterUnix timestamps to dates and dates to timestamps, in any time zoneJSON to TypeScriptGenerate TypeScript interfaces or types from a JSON sampleCSV to JSONConvert CSV to JSON and JSON to CSV, with a table previewYAML to JSONConvert YAML to JSON and JSON to YAML, with anchors resolvedURL Encoder / DecoderPercent-encode or decode text and URLs, and see every part of a linkColor ConverterHEX, RGB, HSL, HWB, OKLCH and CMYK in both directions, with a contrast checkNumber Base ConverterBinary, octal, decimal, hex and any base to 36, exact at any size, with two's complement

In the collection Developer Converters.

Was this tool helpful?
Omnikit

Small jobs, done in your browser. Free, fast and private. Files are never uploaded.

Files

  • Compress Image
  • Image to PDF
  • Merge PDF
  • Compress PDF
  • PDF to Word
  • Word to PDF

Dev

  • JSON Formatter & Validator
  • Base64 Encode & Decode
  • JWT Decoder, Verifier & Encoder
  • Password Generator
  • UUID Generator
  • Unix Timestamp Converter

Money

  • SIP Calculator
  • EMI Calculator
  • GST Calculator
  • FD Calculator
  • PPF Calculator
  • Lumpsum Calculator
GuidesQuestionsAboutHow we checkLaw library (beta)PrivacyTermsDisclosureContactMore: Exam practice (UGC NET Paper 1)Runs in your browser. Nothing is uploaded. © 2026 Omnikit (theomnikit.com)