devtools
🔒 Local processing
Local developer utility

CSV Diff

Compare CSV rows by a unique ID column and highlight added, removed and changed cells. Your input stays in your browser while you work.

CSV Diff🔒 Processed locally

ID values must be unique and nonempty in each document. Column and row order do not create differences.

Only options are saved, never input text or files.

How to use CSV Diff

Complete the labeled fields above, choose an action, and inspect the result before copying or downloading it.

Processing runs locally in this browser. No input is uploaded or sent to a conversion service.

ID values must be unique and nonempty in each document. Column and row order do not create differences.

Inputs

  • Original CSV
  • Updated CSV
  • ID column
  • Delimiter

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