Spreadsheet tools
Free online spreadsheet tools — convert, view, merge, split and clean up Excel and CSV files entirely in your browser, with nothing uploaded.
Excel to CSV
Convert an Excel spreadsheet (XLSX/XLS) to CSV in your browser — pick a sheet, then copy or download.
CSV to Excel
Convert CSV data into a downloadable Excel XLSX file, right in your browser.
Excel to JSON
Convert an Excel .xlsx or .xls spreadsheet into a clean JSON array of objects.
JSON to Excel
Convert a JSON array of objects into a real Excel .xlsx file, right in your browser.
Excel Viewer
Open and view .xlsx and .xls spreadsheets in your browser — no upload, no Excel needed.
Merge Excel Files
Combine multiple Excel (.xlsx / .xls) files into one workbook, right in your browser.
Excel to PDF
Convert an Excel spreadsheet (XLSX or XLS) into a clean PDF table right in your browser.
CSV Viewer & Editor
View and edit a CSV file as a table in your browser, then export clean CSV.
Excel/CSV to HTML Table
Convert an Excel or CSV file into a ready-to-paste HTML table, right in your browser.
TSV ↔ CSV Converter
Convert between TSV (tab-separated) and CSV (comma-separated) in either direction, free and 100% in your browser.
Remove Duplicate Rows (CSV)
Remove duplicate rows from a CSV file right in your browser — no uploads.
Split CSV File
Split a large CSV into smaller CSV files by row count, right in your browser.
CSV Column Tools
Extract, reorder or delete CSV columns in your browser.