How to Import cURL Commands & Test APIs Online with Local-First Privacy

Testing API endpoints and parsing cURL strings copied from browser Developer Tools or API documentation shouldn't require opening bloated external software. With JSON OS's built-in API Sandbox, you can import cURL commands, execute requests, and inspect responses directly inside your browser.

⚡ Launch the In-Browser API Sandbox

Key Features of the cURL API Sandbox

📋 1-Click cURL Import: Paste multiline cURL strings with -X POST, -H "Authorization: Bearer ...", and -d '{"key": "value"}'.
📥 Load Active Document as Body: Use your active, verified JSON file directly as the request body. Syntax guarding prevents sending invalid payloads.
⚡ Open Response in Workbench Tab: Convert returned API JSON responses into an active workbench tab for tree, table, query, and type generation.
⎘ Copy as cURL: Export configured requests into formatted cURL commands for documentation or terminal execution.