📑 CSV Diff & Merge

Compare two CSV datasets, highlight differences, and produce a merged result.

Inputs

CSV A

CSV B

Output

Result

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How it works

How it works

Parses rows by splitting on commas (no quoted fields). Each row is keyed by joining cells with a rarely used separator (U+0001).
Diff: computes only in A and only in B by set difference of row keys.
Merge: performs a union by last‑write‑wins over the composite row key.
Limitations: no support for quoted commas, escapes, multiline fields, or type inference—targets simple CSV.

Privacy & Security

No upload; local only.

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Accuracy, Limits & Tips

No quoted fields, embedded commas, or multiline records.

Examples

Compare id,name lists.

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