cURL input
Supports headers, method overrides, body flags, auth, and multiline commands.
fetch output
Browser-ready JavaScript fetch code appears here.
About this tool
Bridge API docs and frontend code faster
Many API docs and CLI tools share examples in cURL first, while frontend applications need fetch or other browser-side request code. Converting the request by hand is repetitive and easy to get wrong, especially when headers, methods, bodies, or authentication flags are involved.
This converter helps you move from terminal examples to clean browser code faster. It is especially useful when debugging API docs, reproducing issues from logs, or translating a working request into frontend code. For nearby workflows, pair it with URL Parser & Query Params Viewer, JSON Formatter, and Base64 Encoder & Decoder. For a deeper walkthrough, open the cURL to Fetch guide.
What this converter handles well
It supports common flags such as method overrides, headers, body payloads, URLs, and basic auth. That covers a large share of the cURL commands developers copy from API docs and issue trackers during day-to-day debugging.
For header-focused requests, commands like curl -I https://api.example.com map naturally to a HEAD request, while curl -i means the response includes headers as well as the body. Those small differences matter when you are testing cache headers, redirects, content types, auth failures, or rate-limit metadata.
Why this is useful in practice
Once the request is in fetch format, it is easier to drop into browser code, sample apps, test harnesses, or support notes. That saves time and reduces small translation mistakes that slow down debugging.
Developers often use the converted snippet to check a request in a browser console, reproduce a failing endpoint, or create a minimal example for teammates. Keeping method, headers, body, and credentials visible makes the generated fetch code easier to review before it enters an app.
Example: translate API docs fast
Paste a cURL snippet from vendor documentation and convert it into fetch before wiring the same request into a frontend prototype or support demo.
Example: reproduce a support issue
Take a cURL command captured in logs or tickets, generate fetch code, and run the request from the browser while keeping headers and payload structure readable.
Example: share browser-ready examples
Give frontend teammates a cleaner fetch snippet instead of a terminal-only command when documenting new endpoints or debugging request differences.
Example: convert headers-only checks
Turn curl -I commands into fetch snippets that use method: "HEAD" so you can inspect status, redirects, cache-control, and content-type behavior without downloading the full response body.
Example: debug response headers
When API docs use curl -i, convert the command and then read headers from the fetch response to confirm pagination links, request IDs, limits, or authentication challenges.
Example: preserve JSON payloads
Commands with --data and Content-Type: application/json become clearer fetch examples for POST, PUT, and PATCH requests during frontend integration work.