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CSV Merge & Join
Combine two CSV datasets using a matching column. Ideal for enriching exports with metadata, syncing CRM lists, or joining analytics tables.
What this tool does
CSV Merge & Join helps you combine two CSV datasets using a matching column. Ideal for enriching exports with metadata, syncing CRM lists, or joining analytics tables.
What you get
CSV Merge & Join produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.
Loaded sample: Default sample
Supports header rows, quoted values, and multi-line fields.
Report a bug
If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.