Spreadsheet Convert Tools

CSV JSON Converter

Convert JSON to CSV and CSV back to JSON, with nested-object flattening/un-flattening, array handling, selectable fields, type inference, and batch ZIP export.

name,age

Alice,34

[{"name":"Alice","age":34}]

JSON output

CSV to Excel Converter

Convert CSV files to Excel (.xlsx) with automatic delimiter/encoding detection, a data preview, column types, and multi-sheet output.

customers.csv

name,age

Alice,34

customers.xlsx

worksheet created

preview + typed columns

CSV to XML Converter

Convert CSV or TSV files to XML with configurable delimiter, encoding, quoting, column-to-element/attribute mapping, XML name sanitization, and indentation.

name,age

Alice,34

<rows>

<row><name>Alice</name>

</row></rows>

Delimiter Converter

Convert delimited tables between CSV, TSV, semicolon, pipe, or a custom delimiter with explicit quoting, escaping, and null handling.

name;city

Alice;London

name,city

Alice,London

JSONL CSV Converter

Convert JSON Lines to CSV and CSV to JSON Lines, with line-level error reporting, schema discovery, nested-value policies, and streaming for large files.

{"id":1,"name":"Alice"}

id,name

1,Alice