Tools For CSV home
FIX TOOL · 01

CSV Checker & Fixer
Find what is breaking your file.

Upload a CSV to spot malformed rows, duplicates, whitespace, encoding trouble, uneven columns, and other common import problems.

✓ Free✓ No signup✓ Runs in your browser

Upload a CSV file to check it

Your data never leaves your browser

Drop a CSV file here Choose a file CSV, TSV or text · up to 50 MB
GOOD TO KNOW

How do you fix a broken CSV file?

01

Uneven rows

Most importers expect every row to have the same number of columns. A missing separator or broken quote can shift an entire row.

02

Safe repairs only

Exact duplicates, blank rows, outer whitespace, and invisible control characters can be fixed deterministically. Ambiguous quoting and headings stay untouched.

03

A preview before download

The first rows of the cleaned file are shown before you save anything, so you can confirm the result.

KEEP GOING

More tools for stubborn data files

UTFFIX · 02
CSV Encoding Fixer

Repair strange characters and convert legacy CSV files to widely compatible UTF-8 while keeping Japanese and other Unicode text intact.

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≠CLEAN · 03
Remove CSV Duplicates

Count and remove completely identical data rows. The header and first occurrence stay exactly where they are.

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XLSCONVERT · 05
CSV to Excel Converter

Convert a CSV to a simple Excel workbook with Unicode text preserved and no upload to a server.

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