CSV change detection, made clear

See exactly what changed between two datasets.

Upload an existing CSV and its new version. DataDiff finds added, removed, changed, and unchanged records—without storing your data.

Comparison workspace

Three steps to a clean diff

1 Upload
2 Configure
3 Compare

Upload your datasets

CSV only, up to 2 MB per file. Drop a file onto either field or browse.

Existing Data Before The current or original dataset. Validating existing data… New Data After The revised or replacement dataset. Validating new data…