About the Curl to Fetch / Axios Converter
Developers frequently copy example API requests as curl commands from documentation, browser dev tools' "Copy as cURL" feature, or Postman, but need equivalent JavaScript code to actually call that API from a web app or Node.js script. This converter parses a curl command and generates ready-to-use fetch() or Axios JavaScript code automatically.
This tool saves time for frontend and backend developers integrating third-party APIs, engineers translating API documentation examples into working application code, and anyone debugging a request captured from their browser's network tab and needing to reproduce it in JavaScript.
To use it, paste a curl command (including any -X method flag, -H headers, -d or --data body, and the URL) into the input box. Click "Convert" and choose your preferred output: a native fetch() call or an Axios request. The generated code includes the correct HTTP method, headers object, and request body, formatted as clean, ready-to-paste JavaScript.
For example, converting curl -X POST https://api.example.com/users -H "Content-Type: application/json" -d '{"name":"Ana"}' produces a fetch call with method: 'POST', the Content-Type header included in the headers object, and body: JSON.stringify({name: "Ana"}) — ready to drop directly into your application code with correct async/await syntax and basic error handling included.
A common mistake when converting manually is forgetting to JSON.stringify the request body or forgetting to set the Content-Type header, both of which this tool handles automatically based on the curl command's own flags. Another frequent issue is missing authentication headers — always double check that sensitive tokens captured in a curl command (like Authorization: Bearer ...) are moved to environment variables rather than hardcoded in your final application code, since curl commands copied from dev tools often contain live session tokens that shouldn't be committed to source control.
Tip: this tool is especially handy when working through third-party API documentation that only provides curl examples — rather than manually re-typing headers and payloads into your own fetch call (an error-prone process), paste the exact documented curl command and get correct, consistent JavaScript in seconds, then adjust variable names and error handling to match your project's conventions.