Smart Header-Matching Merge Engine
CSV Merge Tool
Combine multiple CSV exports into a single spreadsheet by matching column header names instead of column positions.
Drop 2 or more CSV files here to merge
Upload multiple files simultaneously. Columns will be aligned automatically by header name.
Frequently Asked Questions
Local CSV merges records by matching column header names rather than physical column indexes, ensuring data aligns under the correct header even if columns are shuffled.
The merge engine performs a schema union, adding all unique headers across every file and leaving blank cells for files that lack specific fields instead of dropping data.
No. All file reading, header matching, and dataset merging happen strictly inside your browser's local memory.