What counts as an "empty" row that gets dropped?

Rows where every field is blank — rows with at least one value in any column are kept.

Does it trim whitespace from every field, or just some?

Every field gets leading and trailing whitespace trimmed, which is a common cause of values that look identical but fail exact-match comparisons.

Will this fix inconsistent capitalization or formatting within values?

No, it targets whitespace and empty rows specifically — inconsistent capitalization or value formatting would need a separate cleanup pass.

Does CSV Cleaner upload my files to a server?

No. CSV Cleaner runs entirely in your browser using on-device processing, your files never leave your device.

CSV Cleaner

Trim whitespace and drop empty rows from a CSV file.

Runs in your browser

CSV input

Trims whitespace from every cell and drops fully empty rows.

About this tool

Data exported from different systems often carries small inconsistencies — trailing whitespace around values, occasional completely empty rows — that don't break anything visually but can cause exact-match comparisons, imports or lookups to silently fail. This tool trims whitespace and drops empty rows from a CSV, a quick pass of basic hygiene before feeding the data into another system that expects it clean.

Frequently asked questions

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