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Dataset Comparison Tool

Dataset Comparison Tool

Dataset Comparison Tool lets you compare two CSV, XLSX, or JSON datasets in your browser. Pick one key column and review added, removed, and changed rows.

  • check_circlePrivate browser processing
  • check_circle0 credits
  • check_circleCSV + XLSX

Runs privately in your browser

Run Dataset Comparison Tool

0 credits
  1. 01Choose files
  2. 02Review changes
  3. 03Export result
Work stays in this tabCSV, XLSX, JSONNo upload to ExtractPics
01

Choose two datasets

CSV, XLSX, and JSON files are processed in this browser tab.

Review the result before exporting. Your source is never edited.

Your input is processed in this browser session. Close the tab when you are finished with the result.

What Dataset Comparison Tool does

Dataset Comparison opens two CSV, XLSX, or JSON files in your browser and matches their rows using one key column you choose, or the first column both files share. The result separates added and removed records from rows that changed.

Each changed row shows the full record before and after as JSON, which is easier to review than comparing file checksums or scanning two spreadsheets side by side. The files stay in the browser and the comparison uses no credits.

Dataset Comparison Tool features

table_rows

Useful fields from the start

Review key selection, added rows, removed rows, changed fields in one organized result.

download

Export as CSV, XLSX, JSON

Formats offered: CSV, XLSX, JSON.

Where Dataset Comparison Tool fits

Perfect for

  • checkCompare exports from two different dates
  • checkCheck a catalog before publishing updates
  • checkReview rows changed by a cleanup process
  • checkConfirm a migration kept the expected records

What you get

  • checkKey selection
  • checkAdded rows
  • checkRemoved rows
  • checkChanged fields

How to use Dataset Comparison Tool

  1. 01

    Open the two files

    Choose the earlier and later CSV, XLSX, or JSON datasets from your device.

  2. 02

    Select matching keys

    Enter the one column that uniquely identifies a row, or leave it blank to use the first shared column.

  3. 03

    Review and export differences

    Filter added, removed, and changed records, then save the comparison.

Before you run Dataset Comparison Tool

  • infoA stable unique key produces the clearest comparison.
  • infoIf a key appears more than once in a file, only the last row with that key is compared.
  • infoFiles are processed locally and consume no scraping credits.

Questions about Dataset Comparison Tool

Something missing? Ask us.

Which file formats can I compare?

The tool accepts CSV, XLSX, and JSON datasets that can be represented as rows and columns.

What should I use as the key?

Choose a column such as ID, SKU, or canonical URL that uniquely identifies the same record in both files. Only one key column is supported, so pick one that is unique in both files.

Are my datasets uploaded?

No. The comparison runs in your browser and does not send the source files to the scraping service.

Ready when you are

Run Dataset Comparison Tool

Upload two small datasets and review key selection and added rows.

Open the tool

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