JSON to CSV (NO UPLOAD)

Convert a JSON array of objects into CSV. Includes simple 1-level flattening for nested objects. All processing happens locally in your browser.

Input JSON
NO UPLOAD / Client-side only
Ready
Paste JSON and click Convert. Nothing is uploaded.
Free — Free: up to 200 KB input. Early access: free for now. No payment required. Paid plans coming soon.
    Output CSV
    CSV

    What this tool does

    JSON to CSV turns a JSON array of objects into a standard CSV table. It’s designed for quick exports: you can paste JSON from an API response or a config file and instantly get a CSV you can open in spreadsheets.

    Why NO UPLOAD matters

    Your JSON can contain private data (names, emails, internal IDs). This tool runs 100% client-side and never sends anything to a server. All processing happens locally in your browser. Files are never uploaded.

    Privacy & Security
    All processing happens locally in your browser. Files are never uploaded.