A LITTLE HELP FOR YOUR NEXT TASK
CSV Merger & Joiner
Stack CSV files by matching headers or join two tables by key, with inner, left and full joins.
Private by design
Your inputs stay on your device and are not sent to our servers. Optional usage analytics does not receive your files or tool inputs.
Preparing your local workspace…
How to use CSV Merger & Joiner
- Open two to eight tables together.
- Stack rows with aligned headers, or join the first two tables using selected key columns.
- Choose matching rules, prepare the result and inspect it before downloading.
What are the limits of CSV Merger & Joiner?
5 MB combined; output limited to 25,000 rows, 64 columns and 200,000 cells. Joins use the first two opened tables; duplicate keys produce all matching combinations, including matching empty keys.