Does it handle blank lines?

Yes. Blank lines are treated as empty strings and will sort to the top in ascending order or be removed when using Remove Duplicates.

Is sorting case-sensitive?

Sort A→Z and Z→A use locale-aware comparison which treats uppercase and lowercase versions of the same letter as equivalent for ordering purposes.

Remove duplicate lines from any text with options for case sensitivity and whitespace trimming.

Calculate exact age in years, months, and days from a date of birth.

Calculate BMI in metric or imperial units with category and healthy weight range.

Extract a single CSV column by header name or index.

Convert CSV rows to TSV, semicolon, or pipe-delimited text.

Convert CSV data to a JSON array of objects with delimiter auto-detection.