Excel & CSV Tools
Fast, private spreadsheet tools that run entirely in your browser. No sign-up required.
100% private. Your files are processed locally and never uploaded.
CSV to ExcelFree
Convert CSV files to .xlsx instantly in your browser.
Excel to CSVFree
Convert Excel spreadsheets to CSV files in your browser.
Excel to JSONFree
Convert Excel spreadsheets to JSON with headers as keys.
Split Excel by SheetFree
Split a multi-sheet Excel file into separate files.
JSON to ExcelFree
Convert JSON data to a .xlsx spreadsheet instantly in your browser.