CSV Data Cleaner
Parse, clean, and transform CSV data with deduplication and filtering.
All processing happens in your browser. Your data never leaves your device.No data parsed. Paste CSV data and click "Parse Data".
Features
- Parse CSV data with automatic delimiter detection
- Remove duplicate rows based on all columns
- Sort data by any column in ascending or descending order
- Preview data in a clean table format
- Export cleaned data as a downloadable CSV file
How to Use the CSV Data Cleaner
- 1Paste your CSV data into the input area
- 2Click "Parse Data" to parse and display the data in a table
- 3Use the toolbar to remove duplicates or sort by a specific column
- 4Click "Download CSV" to export the cleaned data
Frequently Asked Questions
What CSV formats are supported?
The tool supports standard CSV with comma delimiters, as well as TSV (tab-separated) and other delimited formats. It auto-detects the delimiter from your data. Headers are expected in the first row.
How does duplicate removal work?
Duplicate detection compares all column values in each row. Two rows are considered duplicates if every column value matches exactly. The first occurrence is kept and subsequent duplicates are removed.
Is there a row limit?
There's no hard limit, but the tool works best with datasets up to about 100,000 rows. All processing happens in your browser, so performance depends on your device. For very large datasets, consider using a dedicated data processing tool.