Pricing

Pay per event

CSV Diff Tool

Compare two CSV datasets and find added, removed, and modified rows. Supports key-column matching, configurable delimiters, case-insensitive comparison, and whitespace trimming. Exports a structured change report with before/after values.

Pricing

Pay per event

Rating

0.0

(0)

Developer

Stas Persiianenko

Actor stats

Bookmarked

Total users

Monthly active users

2 days ago

Last modified

Categories

Developer tools

📄 CSV A (baseline)

csvA

Required

Paste the baseline (original) CSV content here. This is the 'before' dataset.

Type:string

📄 CSV B (updated)

csvB

Required

Paste the updated (new) CSV content here. This is the 'after' dataset.

Type:string

🔑 Key columns

keyColumns

Optional

Column names that uniquely identify each row (e.g. 'id', or ['country', 'city']). If empty, row position (1, 2, 3...) is used for matching.

Type:string[]

Default:

[]

🔣 Delimiter

delimiter

Optional

Field separator character. Use comma for standard CSV, tab (\t) for TSV, semicolon for European formats.

Type:string

Default:,

Options:

,; |

📋 First row is header

hasHeader

Optional

Enable if the first row contains column names. Disable if the CSV has no header row (columns will be named col1, col2, etc.).

Type:boolean

Default:true

🔠 Case-sensitive comparison

caseSensitive

Optional

Enable to treat 'Apple' and 'apple' as different values. Disable for case-insensitive matching.

Type:boolean

Default:true

✂️ Trim whitespace

trimWhitespace

Optional

Trim leading/trailing spaces from cell values before comparison. Recommended to avoid false positives from invisible whitespace.

Type:boolean

Default:true

📊 Output format

outputFormat

Optional

Controls what gets written to the dataset. 'all-changes' outputs one row per changed record. 'summary-only' outputs only the summary statistics.

Type:string

Default:all-changes

Options:

all-changesadded-onlyremoved-onlymodified-onlysummary-only

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