CSV Cleaner
Trim whitespace, drop blank and duplicate rows, and normalize quoting to turn messy CSV into clean, valid data.
Tidy up messy exports
Real-world CSV is rarely clean. Exports arrive with stray spaces padding every cell, empty rows scattered through the file, and accidental duplicate records. This cleaner fixes all three in one pass: it trims whitespace from each value, removes rows that are entirely blank, and — when you want — drops duplicate rows while keeping the first of each.
Because it parses the CSV properly before re-emitting it, quoted fields with commas survive intact and every value comes out with consistent, valid quoting. The result opens cleanly in any spreadsheet or imports without the errors that dirty data usually triggers. Paste, toggle the options you need, and copy the tidy version.
Private and instant
All processing happens in your browser — your data never leaves your device.
Frequently Asked Questions
What does the CSV cleaner do?
It tidies messy CSV: trims whitespace from every cell, removes fully blank rows, optionally drops duplicate rows, and re-quotes fields consistently so the output is valid, clean CSV.
Does it handle quoted fields correctly?
Yes. It parses the CSV following standard rules — quoted values may contain commas and escaped quotes — then re-emits each field with correct quoting.
Can it remove duplicate rows?
Yes, with the duplicate-row toggle. It keeps the first occurrence of each identical row and drops the rest, preserving order.
Is my data private?
Yes. Cleaning runs entirely in your browser — nothing is uploaded or stored.
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