✦ Free · No login · Instant score

CSV Quality Score
& Data Checker

Get a 0-100 quality score for your CSV file instantly. Full breakdown of every issue found. Free, private, no account needed.

Check My CSV Quality Now →

What we check

⊘

Duplicate Rows

Detects all duplicate rows and shows exactly how many were found.

▣

Empty Cells

Counts empty cells across every column and penalises score accordingly.

✦

Encoding Errors

Flags broken characters and encoding issues that could corrupt imports.

📅

Date Consistency

Checks if date columns use consistent formats across all rows.

◎

Column Headers

Validates column names are clean, unique and properly formatted.

⚡

Overall Score

A single 0-100 score so you know instantly how clean your data is.

Frequently Asked Questions

How is the score calculated?

We start at 100 and deduct points for each issue found — duplicates, empty cells, bad headers, and inconsistent data types.

Is it free?

Yes — completely free. No account or credit card needed.

What score should I aim for?

90+ is excellent. 70-89 is good. Below 70 means your CSV needs cleaning before import.

Can I fix the issues after checking?

Yes — use CSVNow's cleaning tools to fix every issue the score identifies.