CSV Deduplicator

Remove duplicate rows from a CSV, keeping the header and the first occurrence of each unique row.

In: csvOut: csvTask: clean

CSV Deduplicator

Remove duplicate rows from a CSV, keeping the first occurrence of each unique row.

Shareable input links
You can prefill this tool by adding ?input=... to the URL. Tip: URL-encode JSON/text values before sharing.

CSV Input

Paste the CSV that may contain duplicate rows.

Deduplicated CSV

CSV with duplicate rows removed.

Workspace actions

Removed 2 duplicate row(s). Output contains only unique rows.

Split editor

Example input and output

Example CSV
name,age
Ada,31
Linus,27
Ada,31
Example CSV
name,age
Ada,31
Linus,27

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Reverse tools

No reverse tool detected for this format pair

Next steps

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Scroll horizontally to view all next-step tools.

Included in workflows

CSV Deduplication Pipeline

Clean CSV whitespace, remove duplicate rows, then validate the deduplicated result.

Intermediate~3 min
Open workflow

Slim CSV and Deduplicate

Remove unwanted columns, deduplicate rows, then validate the final CSV.

Intermediate~3 min
Open workflow

Full CSV Quality Pipeline

Validate, clean, deduplicate, and reformat CSV in a single end-to-end workflow.

Intermediate~4 min
Open workflow

CSV Split, Dedupe, Quality Gate

Normalize CSV formatting, deduplicate records, then validate structural integrity.

Intermediate~3 min
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Scroll horizontally to view all workflows.

FAQ