Convert common curl commands into fetch(), Axios, and PowerShell Invoke-RestMethod snippets directly in your browser. It is useful when you copy an API example from documentation and want a faster starting point for JavaScript, frontend debugging, or Windows admin workflows.
This version focuses on practical everyday commands such as URLs, methods, headers, and request bodies. Advanced curl flags are not fully supported, so generated output should always be reviewed before production use.
Fetch API
Axios
PowerShell
How to use the cURL converter
Paste a curl command into the input field and click Convert. The tool parses the request and generates equivalent output for Fetch API, Axios, and PowerShell.
For simple requests, you can paste examples such as curl https://example.com or a JSON POST request with -X, -H, and -d. Use the Example button if you want a quick sample to test the workflow.
The converter is designed as a practical helper, not as a full shell parser. It handles common real-world patterns well, but some advanced flags, repeated edge-case options, or shell-specific escaping may still require manual adjustment.
All conversion happens locally in your browser. No API request is sent by the tool itself, and it does not execute the generated code.
Frequently asked questions
This tool takes a practical curl command and converts it into three common formats:
- Fetch API for browser-side JavaScript
- Axios for JavaScript applications and scripts
- PowerShell using
Invoke-RestMethod
It is designed to save time when you copy API examples from vendor documentation and want a cleaner starting point in another environment.
This v1 focuses on the most common request parts:
- URL
- HTTP method with
-Xor--request - headers with
-Hor--header - request body with
-d,--data,--data-raw, or--data-binary
If a request body exists and no explicit method is provided, the tool may infer POST automatically.
No. This version is intentionally practical and focused.
It does not aim to fully emulate shell parsing or every advanced curl feature such as multipart forms, proxy settings, certificate options, cookie jars, or complex shell-specific escaping.
If unsupported flags are detected, you may still get usable output, but you should review it carefully before using it in real code.
Use the generated output based on your environment:
- Fetch API for browser JavaScript and lightweight frontend examples
- Axios for JavaScript projects that already use Axios or prefer its request config style
- PowerShell for Windows admin workflows, scripts, and quick API tests from a terminal
The same request may look slightly different in each format, but the goal is to preserve the practical request structure.
The tool uses a safer default when JSON is not clearly implied by the request headers.
Many HTTP endpoints return plain text, HTML, empty responses, or non-JSON content. Using response.text() as the default reduces the chance of generating example code that immediately fails on non-JSON responses.
If JSON is clearly expected, the output may use JSON parsing instead.
Repeated headers can be tricky because different environments handle them differently.
The tool preserves repeated headers where practical, but generated output may still need manual review depending on the target format. For example, Axios examples may fall back to a simpler representation because repeated header handling is not always expressed cleanly in a plain config object.
No. The converter does not send the request and does not test the API endpoint.
It only rewrites the request into another code format so you can copy it, inspect it, and continue working in your preferred environment.
No. Conversion happens locally in the browser.
That makes it convenient for quick workflow conversion, but you should still avoid pasting sensitive production credentials or secrets on shared or untrusted machines.
The most common reasons are:
- the input is not a valid
curlcommand - the URL is missing
- the command uses unsupported or advanced flags
- the shell escaping is too specific to one terminal environment
Try simplifying the command to its practical request parts first: URL, method, headers, and body.
Use it as a starting point, not as blind copy-paste production code.
Always review:
- authentication headers
- body format
- response parsing
- error handling
- environment-specific behavior
The goal of the tool is to save time, not to replace final code review.
Practical examples
Here are a few common cases where this converter is useful in real work:
- Convert a vendor API example from curl into browser
fetch()code for a frontend integration. - Turn a copied API request into Axios format for a Node.js script, automation task, or internal tool.
- Rewrite a curl example into PowerShell when testing an API from a Windows server or admin workstation.
- Quickly inspect which method, headers, and body a curl command is actually using before rewriting it manually.
This is especially handy when documentation only shows curl examples but your actual environment is JavaScript or PowerShell.