Data & Spreadsheet

Work with CSV, JSON tables, Excel files, and structured data

View, sort, filter, and inspect CSV files as an interactive table — all in your browser

Render JSON arrays of objects as a sortable, searchable HTML table with column filtering

Convert XLSX and XLS Excel files to CSV format — no upload, runs in your browser via SheetJS

Pick specific columns from a CSV file and download the result — great for cleaning large datasets

Run SQL SELECT queries directly on uploaded CSV files — no server needed

Merge multiple CSV files into one — reorder, deduplicate rows, and handle headers automatically

Convert JSON arrays of objects to Excel (.xlsx) or CSV — powered by SheetJS, runs in your browser

Compare two JSON objects side by side and highlight added, removed, and changed fields

Convert XML to JSON and JSON back to XML — bidirectional, zero dependencies, runs in your browser