Highlight Words in Text

The Highlight Words in Text Tool is designed to help you quickly identify and emphasize specific words or phrases within any block of text. Whether you’re working with articles, notes, or large data files, this tool makes it easy to highlight key terms instantly.

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Supported file type: text/plain (.txt)
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Options
Case Sensitive
Whole Words Only

How to Use:

Paste your text into the Input Text box or import a .txt file. Enter the words you want to highlight in one or more of the five available word sets and choose a highlight color for each. Toggle Case Sensitive, Whole Word Match, Regex Mode, or Highlight Whole Line if needed. As you type or adjust settings, the output will update automatically. Copy the result or export it to an HTML file when finished. Clear All resets everything to default.

Example:

  • Enabled: The tool matches words exactly, respecting uppercase and lowercase letters.
    (e.g., Fox will not match fox.)
  • Disabled: The tool matches words without caring about casing.
    (e.g., Fox and fox will both match.)

Whole Words Only (toggle):

  • Enabled: Matches only complete, standalone words.
    (e.g., cat will match cat, but not catalog.)
  • Disabled: Matches the word anywhere inside longer words too.
    (e.g., cat will match both cat and catalog.)

Common Use Cases:

The Highlight Words in Text Tool helps quickly emphasize important words or phrases in any text, making it useful for editing, studying, research, and content review. Editors can spot repeated terms, students can highlight vocabulary, and researchers can scan large documents for key terms. The Case Sensitive option allows for exact matching when precision matters, while Whole Words Only ensures only full-word matches are highlighted. With live preview, styled file import, easy copy, and export options, the tool makes highlighting fast, flexible, and reliable for a variety of needs.

Useful Tools & Suggestions:

After highlighting words, Color Words in Text is a great follow-up if you want to apply actual visual styling beyond just emphasis. And if you’re prepping for bulk editing, Replace Words in Text makes it easy to update or swap out anything you’ve marked.

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