CSV viewer and editor
CSV viewer and editor lets you preview CSV tables, select columns, filter rows, and export in your browser.
JSON ⇔ CSV
JSON ⇔ CSV lets you convert JSON and CSV with delimiter, nesting, and formula-safety controls in your browser.
⌂ Inputs and results stay in this browser and are not automatically stored or sent.
Changing direction leaves input intact. Paste input in the selected format.CSV export settings
Waiting for input
Waiting for input
How to use
Use this to transfer a JSON list to a table or convert CSV back to JSON. The first CSV row is the header. Set direction, delimiter, and nesting behavior before converting.
Check row and column counts, leading zeros, empty strings, and nulls. Spreadsheet formula protection may alter exported values, so record that setting with the output.
Examples
[{"id":1,"name":"Ada"},{"id":2,"name":"Linus"}]Principles and limits
Each input is limited to 1,048,576 bytes, output to 33,554,432 bytes, and processing to 5,000 ms. Input is never silently truncated.
Guides
Related tools
JSON/CSV → INSERT
JSON/CSV → INSERT lets you convert JSON or CSV to reviewable dialect-aware INSERT statements in your browser.