Free Data Tools Online
Work with CSV and tabular data right in your browser. View CSV as a table, convert between CSV, TSV, Markdown, and HTML tables, remove duplicates, extract or sort columns, and split large files — all without uploading your data.
CSV Viewer
View CSV files as a clean table.
Data ToolsCSV to TSV
Convert CSV to tab-separated values.
Data ToolsTSV to CSV
Convert tab-separated values to CSV.
Data ToolsCSV to Markdown Table
Convert CSV into a Markdown table.
Data ToolsCSV to HTML Table
Convert CSV into an HTML table.
Data ToolsHTML Table to CSV
Extract an HTML table to CSV.
Data ToolsCSV Deduplicator
Remove duplicate rows from CSV.
Data ToolsCSV Column Extractor
Extract specific columns from CSV.
Data ToolsCSV Sorter
Sort CSV rows by a column.
Data ToolsCSV Splitter
Split a CSV into smaller files.
Data ToolsXLSX Viewer
Open and view Excel (XLSX) files.
Data ToolsXLSX to CSV
Convert Excel sheets to CSV.
Data ToolsCSV to XLSX
Convert CSV into an Excel file.
Data ToolsXLSX to JSON
Convert Excel sheets to JSON.
Data ToolsJSON to XLSX
Convert a JSON array to Excel.
Data ToolsExcel Sheet Splitter
Split an Excel workbook by sheet.
Data ToolsExcel Sheet Merger
Merge Excel files into one workbook.
Data ToolsExcel Column Converter
Convert Excel column letters ↔ numbers.
Data ToolsMarkdown Table Generator
Build Markdown tables visually.
Data ToolsMarkdown Table Formatter
Align and tidy Markdown tables.
Data Tools