CSV · TSV → matched & enriched CSV
match · flag · copy values · runs in your browser
1

Files

Main file
The base file that gets exported with new columns added
Reference files
One or more files to match against · add as many as you need
2

Match rules

Each rule tries its strategies top-to-bottom until one matches
Setups
3

Run & export

Add a main file and at least one rule to run.