Analyze CSV structure — column types, counts, unique values, and empty cells. Everything runs locally in your browser — nothing is uploaded.
Remove duplicate rows from CSV data based on a specific column. Keep only unique values for cleaner datasets.
Validate CSV formatting — detect inconsistent column counts, quoting errors, and malformed rows. Get detailed issue reports.
Merge two CSV files on a common column. Join datasets horizontally by matching key values, like a SQL JOIN for your spreadsheets.
Bidirectional converter between tab-separated values (TSV) and comma-separated values (CSV) with proper quoting. Everything runs locally in your browser — nothing is uploaded.
Clean CSV data by trimming whitespace, removing empty rows, deduplicating, and applying column-aware transforms (email lowercasing, phone digit-stripping, note normalizing). Everything runs locally in your browser — nothing is uploaded.
CSV Analyzer lets you analyze CSV structure — column types, counts, unique values, and empty cells. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Analyze CSV structure — column types, counts, unique values, and empty cells. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, CSV Analyzer runs entirely on your device with no internet connection needed. All processing is done locally.
Column types (text, number, date), row count, unique value count, empty/null cell count per column, and data distribution. Identifies data quality issues before analysis.
Yes. The analyzer inspects column values and classifies columns as numeric, text, date, or boolean. This helps determine which columns can be used for calculations vs categories.
Yes. For each column, the analyzer shows the count of unique values and can list them. This identifies cardinality — whether a column has few categories or many unique entries.
Yes. Check for empty cells, unexpected data types, and encoding issues before importing into databases, spreadsheets, or analysis tools.
No. All analysis happens locally in your browser. No CSV data is sent to any server.
CSV Statistics
Compute per-column statistics for CSV data including count, sum, average, min, max for numeric columns. Everything runs locally in your browser — nothing is uploaded.
CSV Data Cleaner
Clean CSV data by trimming whitespace, removing empty rows, deduplicating, and applying column-aware transforms (email lowercasing, phone digit-stripping, note normalizing). Everything runs locally in your browser — nothing is uploaded.