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CSV Cleaner and Deduplicator

Processing locally

Clean tabular files without turning identifiers into numbers.

Cells stay strings. 00123 is not coerced to 123.

Output

Waiting for input

Process your input to preview the results here.

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How to use this tool

How it works

Processing stays in this browser tab. Source files are not uploaded. Export is a new copy; originals are not overwritten.

Related: Text Cleanup and DeduplicationJSON Formatter, Validator and Diff