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Text Cleaning: Deduplication, Whitespace Normalization, and Case Conversion

August 15, 2026 · DevTools

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Text Cleaning: Deduplication, Whitespace Normalization, and Case Conversion

Raw text pasted from PDFs, spreadsheets, and emails is often littered with trailing whitespace, inconsistent line endings, and duplicate records.

Clean and standardize text using the Text Cleaner & Normalizer.

Common Text Normalization Operations

  1. Remove Duplicate Lines: Deduplicate lists while preserving original insertion order or sorting alphabetically.
  2. Whitespace Normalization: Strip leading/trailing spaces, collapse multiple spaces into one, and remove blank lines.
  3. Case Conversions: Transform text between camelCase, snake_case, kebab-case, PascalCase, and Title Case.
  4. Stripping Accents & Diacritics: Normalizing unicode characters (é $\to$ e).

Clean your text blocks with the Text Cleaner & Normalizer.

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