Sorawi Tools

JSONL / NDJSON Converter

Batch

Convert between JSONL (NDJSON), CSV, Excel, and JSON. All conversions run locally in your browser — ideal for logs, data pipelines, and analytics exports.

Log files, analytics exports, and data pipelines speak JSONL, while spreadsheets and warehouses prefer CSV, Excel, or plain JSON. This converter translates between JSONL and CSV, Excel, and JSON in any direction, handling nested values without data loss. Everything runs locally in your browser.

Loading tool...

Your data is converted entirely in your browser — it never leaves your device.

FAQ

Frequently asked questions

Everything you need to know about jsonl / ndjson converter.

What formats can I convert to and from?

The JSONL converter handles JSONL/NDJSON, CSV, Excel (.xlsx), and standard JSON in both directions. Every conversion runs locally in your browser, so log exports and datasets never leave your device.

How are nested objects handled in CSV or Excel output?

Nested objects and arrays are serialized as compact JSON strings inside the cell, so no data is lost. When converting back to JSONL, those strings are parsed again, restoring the original structure.

Which Excel sheet is used when converting?

The first sheet is converted. If your data spans multiple sheets, keep the one you want on a single sheet before converting, or split the workbook first.

Can I batch-convert multiple files at once?

Yes. Drop several JSONL, CSV, or Excel files or a ZIP archive and the converter processes them all, downloading the results together. Ideal for cleaning up exports and pipelines in bulk.

Is my data private?

Yes. Conversion happens entirely in your browser using client-side parsing; nothing is uploaded, stored, or transmitted, so sensitive log or database exports stay on your machine.

Guides

How to Convert JSONL to CSV or Excel

Convert line-delimited JSON (JSONL/NDJSON) files into spreadsheets for analysis, with zero uploads and full control over columns.

JSONL vs JSON: Which Format Should You Use?

Line-delimited JSON is built for logs and streaming; standard JSON excels at nested structures. Learn when to use each and how to convert between them.

Comparisons

JSONL vs JSON: Which Line-Delimited Format Should You Use?

Understand when JSONL beats standard JSON for logs, streaming data, and large exports, and when to stick with JSON.

Related tools

same category · same privacy