Data Cleaner — Free Online Tool
Clean and transform datasets with find-and-replace, deduplication, column reordering, and format conversions. All in your browser.
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How It Works
Paste your data or upload a CSV file. Apply cleaning operations from the toolbar — each operation previews the result before applying. When satisfied, export the cleaned data as CSV or copy to clipboard.
Frequently Asked Questions
Find-and-replace, remove duplicates, trim whitespace, change case, split or merge columns, sort rows, and filter by conditions.
Yes. All processing happens locally in your browser. Your data is never uploaded to any server.