About cURL → JavaScript
Convert cURL commands to JavaScript fetch calls online for quicker browser and Node prototyping. Paste a cURL from API docs and get a fetch starter while headers and bodies stay on your device — important when Authorization headers are included.
What stays local: cURL commands, headers, and request bodies.
What you can do with cURL → JavaScript
- cURL → JavaScript fetch
- Preserves method, headers, and body where possible
- Local conversion only
- Handy for API doc examples
How to use cURL → JavaScript
- Paste a cURL command. Copy cURL from docs, DevTools, or a README.
- Convert to fetch. Generate a JavaScript fetch snippet.
- Adapt and run. Copy into your app and adjust auth or environment URLs.
Privacy
What stays local: cURL commands, headers, and request bodies. DevTooKit is local-first — no signup wall, no server-side processing for this tool, and no watermark on results.
Related tools
FAQ — cURL → JavaScript
Privacy, offline use, and how this free online tool works.
Are Authorization headers uploaded?
No. Conversion runs locally. Still avoid sharing production secrets in screenshots or chats.
Is every cURL flag supported?
Common request shapes convert cleanly. Exotic flags may need manual tweaks in the generated fetch.