Combine two or more CSV columns into a single column with a custom separator. Merge first + last name, address parts, or any fields. Browser-based, no upload.
Privacy: Everything runs locally in your browser. Your source file is not uploaded to JAD Apps servers.
Combine two or more CSV columns into a single column with a separator. Useful for joining first-name + last-name into full-name, building a composite key for deduplication, or constructing a display field from multiple sources.
Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
Drop your CSV
Each header becomes a checkbox.
Tick at least 2 columns to merge
The order you tick is the order they're joined in the output.
Set the separator and new column name
Default separator is space; default header is 'merged'. Both are editable.
Click Merge columns
The original columns are removed and a single new column takes their place at the front of the file.
Yes — they're replaced by the merged column. If you want to keep both, duplicate the file first or use a spreadsheet tool with formulas.
Empty cells produce empty pieces, so 'Alice||' (with empty middle column and `|` separator) merges to 'Alice||'. You may want to strip the trailing separator with CSV Find & Replace.
By default at position 0 (the first column). The orchestrator and API expose an `insertAt` option to control this; the in-browser tool always inserts at 0 for now.
Privacy
Everything runs locally in your browser. Your source file is not uploaded to JAD Apps servers.
Select and delete any columns from a CSV file in your browser. Strip PII, internal codes, or unwanted fields before sharing. No upload required.
Drag-and-drop CSV columns into any order to match your import template. Browser-based, no upload, instant download.
Search and replace any text or pattern across all CSV cells. Supports plain text, case-insensitive, and regex modes. Browser-based, no upload.