CSV File Merger

Your data never leaves your device. All CSV processing happens entirely locally within in your browser - no files are uploaded to servers, no data is stored, and no privacy concerns.

Drag, drop, and merge in seconds. Drag two files to merge, pick to merge by rows or by columns and hit merge. Get a merged CSV, no technical skills required.

Choose what to include in your final export. Search and filter through hundreds of columns, see live data previews, and download only the data you need.