Convert a JSON array of flat objects into CSV.
🔒 Your file is processed locally in your browser whenever supported. This tool runs entirely on your device — nothing you type or upload is sent to a server, logged, or stored.
| Platform | Supported | Offline | Local | Server | Network |
|---|---|---|---|---|---|
| WEB | Yes | Yes | Yes | No | Not required |
| PWA | Yes | Yes | Yes | No | Not required |
| ANDROID | Yes | Yes | Yes | No | Not required |
| IOS | Yes | Yes | Yes | No | Not required |
Pretty-print and validate JSON with clear error messages.
Decode a JWT header and payload locally. Signatures are never verified or sent anywhere.
Decode Base64 back into readable text, locally.
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