Excel Data Analyzer No Excel Required
Upload any .xlsx or .xls file and get instant column statistics, null detection, duplicate rows and a data quality score. Analyze, clean and export your Excel data entirely in the browser no Excel needed, no signup, no install.
CSV & Excel Data Analyzer
Find duplicates, nulls & errors · Clean & export · Auto dashboard
Drop your data file here
or click to browse CSV, Excel (.xlsx / .xls) or JSON
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Free CSV and Excel Data Analyzer Find Duplicates, Nulls and Errors Instantly
Upload any CSV or Excel file to instantly find duplicate rows, null values, type mismatches and data quality issues. The Clean Data tab lets you remove duplicates, fill nulls and standardize headers in one click, then download the cleaned file. The Dashboard tab auto-generates charts from your data. No Python, no SQL, no formulas required.
What You Can Learn About Your Excel Data in 30 Seconds
Excel has powerful analysis features, but getting a complete picture of a large dataset typically requires writing multiple formulas, creating pivot tables, and spending 15-30 minutes on setup. This tool gives you that same overview instantly just by uploading the file.
Count, distinct count, min, max, mean, median, mode, standard deviation and sum for every numeric column. No formulas needed.
Exact null count and fill rate percentage for each column. Immediately see which columns have data gaps.
Every duplicate row with its exact row number and the row it copied. Highlighted in red in the data table.
Columns where text values are mixed into numeric data. These break SQL imports and Power BI measures.
Values more than 3 standard deviations from the column mean. Suggests data entry errors or extreme values.
A single number from 0 to 100 summarising the overall health of your spreadsheet data.
What This Tool Does That Excel Cannot Do Easily
Excel is built for data entry and manual analysis. It is not optimized for automated data quality checking. Here is what typically requires hours in Excel but seconds in this tool.
| Task | This Tool | In Excel |
|---|---|---|
| Find all duplicate rows | Instant on upload | COUNTIF formula + filter + manual review |
| See null count per column | Shown automatically | COUNTBLANK formula per column |
| Get min/max/mean per column | Full stats table automatically | Multiple formulas or pivot table |
| Detect type mismatches | Automatic with column highlight | Not possible without complex VBA |
| Remove duplicates and export | One click + download | Remove Duplicates tool + Save As |
| Overall quality score | Calculated automatically | Not available |