CSV Merger
Merge multiple CSV files into one — reorder, deduplicate rows, and handle headers automatically
Drop CSV files here or click to upload
Upload multiple CSV files to merge them
Continue Exploring
Other Data & Spreadsheet you might like...
CSV Viewer & Editor
View, sort, filter, and inspect CSV files as an interactive table — all in your browser
JSON Table Viewer
Render JSON arrays of objects as a sortable, searchable HTML table with column filtering
Excel to CSV Converter
Convert XLSX and XLS Excel files to CSV format — no upload, runs in your browser via SheetJS
CSV Column Extractor
Pick specific columns from a CSV file and download the result — great for cleaning large datasets
SQL on CSV
Run SQL SELECT queries directly on uploaded CSV files — no server needed
JSON to Excel
Convert JSON arrays of objects to Excel (.xlsx) or CSV — powered by SheetJS, runs in your browser
JSON Diff Viewer
Compare two JSON objects side by side and highlight added, removed, and changed fields
XML ↔ JSON Converter
Convert XML to JSON and JSON back to XML — bidirectional, zero dependencies, runs in your browser