Free Bulk JSON to CSV & Excel Converter

Turn JSON exports and API responses into spreadsheets. Nested data is flattened into tidy columns, and you can convert lots of files at once or paste JSON straight in. Everything happens in your browser.

Quick human check, then the tool unlocks:

Drop JSON files or whole folders here JSON and JSON Lines (.jsonl / .ndjson).

…or paste JSON

Save as Lists inside items Nested names

How to convert JSON to Excel or CSV

Drop in your JSON files, or paste JSON into the box.
Choose Excel or CSV, and how lists inside each item are handled.
Press Convert, check the preview, and download.

🔒 Your data is converted by your own browser and is never uploaded to our server.

How it handles your JSON

If the file is a list, each item becomes a row. If the list is inside something else (like {"data": {"items": [...]}}), the biggest list is found and used.
Nested fields become columns: {"address": {"city": "Boston"}} gives a column address.city.
Items with different fields are fine: every field gets a column, and missing values are left blank.
JSON Lines files (one JSON object per line), common in logs and data exports, work too.