Turn messy CSV data into a repeatable cleaning plan.
Compose focused transformations instead of trusting an opaque one-click cleanup. Each step updates the preview while the original rows remain unchanged.
Standardise text values
Trim leading and trailing spaces, collapse repeated whitespace, and apply lower, upper or title case to selected columns. Empty strings can be represented consistently as null values.
Make transformation order visible
Trimming before deduplication can produce a different result from deduplicating first. The plan displays its sequence, so you can reason about the output and undo the latest choice.
Review rows and column profiles
The table shows a bounded preview, while column profiles explain how completeness and uniqueness change. Fuzzy suggestions remain separate from rules that can alter the output.
Export without replacing the source
Local mode processes the complete accepted CSV when you export and downloads a new file. It does not overwrite the original or send its contents to a server.