CSV Data Profiler
Instantly profile any CSV file. See column types, null rates, unique counts, min/max, mean and sample values — all in your browser, no upload required.
Drop a CSV file here
or click to browse — CSV, TSV, TXT supported
Detects column types (number, date, boolean, string) automatically.
Shows null counts, unique counts, min/max, mean and sample values per column.
No data is uploaded — everything runs in your browser.
How it works
Drop your CSV
Drag and drop or click to upload any CSV, TSV or TXT file. The file stays entirely in your browser.
Automatic profiling
Every column is analyzed: type detection, null counting, unique value counting and statistical summaries for numeric columns.
Instant results
See a card per column with type badge, null fill bar, min/max/mean and sample values. Spot data quality issues immediately.
What gets analyzed
Column type
Auto-detected: number, date, boolean or string
Row count
Total rows including nulls
Null count & %
Missing or empty values highlighted
Unique count
Number of distinct non-null values
Min / Max
For numeric and date columns
Mean
Average for numeric columns
Sample values
First few distinct values per column