Free Private Data Tools
Convert CSV data to JSON or Excel, flatten JSON back into rows, or clean up a messy CSV file before importing it somewhere else. Every tool below runs entirely in your browser. Your data file is never uploaded anywhere.
CSV to JSON
Convert a CSV file to JSON.
JSON to CSV
Convert a JSON file to CSV.
CSV to Excel
Convert a CSV file to .xlsx.
Excel to CSV
Convert an .xlsx workbook to CSV.
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Excel to JSON
Convert a spreadsheet sheet to JSON.
PowerPoint to Word
Convert a .pptx presentation's slide text into an editable .docx.
JSON Formatter
Format, minify, and validate JSON.
Merge CSV Files
Stack multiple CSV files into one.
CSV Cleaner
Trim, dedupe, and clean CSV data.