Your files stay on your device

JSONL / NDJSON studio

Validate newline-delimited JSON line by line, see the inferred columns and their observed types, and convert JSONL to CSV, TSV, Markdown, or JSON, or CSV/TSV/JSON back to JSONL. Every step runs in this tab.
Validate + inferConvertCopyDownloadNothing in yet

Paste, drop, or type to begin. Everything stays on this device.

one JSON value per line

Next door in JSON

- JSON Converter (/json/convert)
- JSON Validator (/json/validator)
- CSV studio (/config/csv)
All JSON tools (/json)

Canonical HTML: https://nutter.tools/json/jsonl
Markdown version: https://nutter.tools/json/jsonl/index.md
Plain-text version: https://nutter.tools/json/jsonl/index.txt
Agent index: https://nutter.tools/llms.txt