RividTechMerge CSV
Stack rows from multiple CSVs (union of columns) or join two files on a key column.
Drop multiple CSV files
Select one or more files
0 rows
How to use Merge CSV
Stack multiple CSVs or join on a key column. Follow these steps to get a reliable result in seconds.
- 1
Choose Stack (append rows) or Join (match on a key).
- 2
Paste or drop one or more CSV files into the inputs.
- 3
For joins, pick left/right keys and join type.
- 4
Download the merged result or Send to another tool.
Why RividTech?
A simple, private toolkit for everyday structured-data tasks — without signing up or sending files to the cloud.
Private by design
Your files are processed in your browser. RividTech does not upload your CSV, TSV, or JSON content to our servers for conversion.
Fast and free
No account, no install, and no wait for server round-trips. Tools run instantly on your device.
Built for real workflows
Convert formats, generate SQL, preview tables, remove duplicates, and filter data — then copy or download when you are done.
Works anywhere
Use the tools on desktop or laptop with a modern browser. Ideal for quick one-off tasks and everyday data cleanup.
More clean & transform
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