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CSV Match & Compare Tool

Upload two files, choose your match keys, and download matched and unmatched exports with clear totals.

Step 1: Upload Files
A
File A
Records to classify as matched or unmatched
B
File B
Lookup file used for matching
Step 2: Match Columns

Tool overview

Upload two files, choose your match keys, and download matched and unmatched exports with clear totals.

Who this tool is for

  • Teams reconciling lead lists against suppression lists
  • Ops teams verifying changes across exports
  • Analysts matching datasets before reporting

How it works

  1. Upload your primary file and your reference file
  2. Select the match key columns in each file
  3. Run the compare to generate matched/unmatched outputs
  4. Download exports and reconcile totals

Use cases

  • Reconcile a suppression list against a lead list
  • Identify overlaps between two datasets
  • Generate matched and unmatched exports for operations

Example outputs

Output Contains Typical next step
matched rows found in both files remove or audit overlaps
unmatched rows found only in one file prepare net-new or remaining list

Security & privacy

Uploads and outputs are stored privately and served via protected download links. Outputs are retained for 30 days by default.

FAQ

What outputs do I get?
You get matched and unmatched exports so you can reconcile lists quickly.
Can I compare by phone or email?
Yes. Choose the columns in each file that represent the key you want to match on.
Are results audit-friendly?
Yes. Outputs are separated and accompanied by clear counts so totals reconcile.