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Text Cleaning: Deduplication, Whitespace Normalization, and Case Conversion

August 15, 2026 · DevTools

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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.

Tools mentioned in this post