CSV & Excel compare

Compare CSV or Excel columns, locally

Upload two spreadsheet files, select a column from each, and review matches and differences without sending the file to a comparison server.

Compare a column from two files

CSV, XLSX, and XLS are read locally. Choose the columns you want to reconcile.

File A

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File B

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A column-aware reconciliation workflow

Select the ID, SKU, email, or other one-dimensional field that defines a record. The tool compares membership rather than row position, so files can have different orders and still be reconciled. Use “Only in A”, “Only in B”, and “Different” as review queues, then download them as CSV or TXT.

Read the CSV & Excel comparison guide →

Compare two pasted lists instead →