Local developer utility

NDJSON Viewer

Validate newline-delimited JSON and display it as an array. Your input stays in your browser while you work.

NDJSON Viewer🔒 Processed locally

How to use NDJSON Viewer

Complete the labeled fields above, choose an action, and inspect the result before copying or downloading it.

Processing runs locally in this browser. No input is uploaded or sent to a conversion service.