Highlight multiple keyword groups with different colors. Perfect for semantic analysis and editing.
Match Options
Highlight Groups
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Input Text
Highlighted Preview
Sustainable energy is crucial for the future. Solarpower and windenergy are renewable sources. Fossil fuels, however, cause pollution and climate change. We must reduce carbon emissions.
The Keyword Highlight Tool turns your text into a visual map. Whether you're an editor checking for overused words, an SEO specialist balancing keywords, or a student analyzing themes, our Multi-Color Grouping system lets you spot patterns instantly.
Multi-Color Groups
Assign different colors to different categories of words (e.g., Nouns=Blue, Verbs=Red) for semantic analysis.
Precision Control
Toggle Case Sensitivity and Whole Word matching to find exactly what you need, filtering out noise.
Export HTML
Download your highlighted text as a standalone HTML file to share your analysis with others.
How to Use
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Input Text: Paste your document into the "Input Text" editor on the right.
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Define Groups: On the left sidebar, add keyword groups. Type words separated by commas (e.g., "apple, orange").
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Customize Colors: Click the color circle next to each group to cycle through Yellow, Green, Blue, Red, Purple, and Orange.
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Refine Search: Use "Whole Word Only" to avoid partial matches (like finding "car" in "carpet") or enable "Case Sensitive" for strict matching.
Live Example
Configuration
Keywords:solar, wind
Keywords:pollution
Visual Result
Clean energy comes from solar and wind power, which helps reduce pollution.
Frequently Asked Questions
How do I highlight different keywords in different colors?
Click the "+ Add" button in the "Highlight Groups" panel. Each new group gets a unique color (Yellow, Green, Red, etc.). Enter your specific keywords for that group to see them highlighted instantly.
Can I search for exact phrases?
Yes! Simply use commas to separate your terms. For example, entering "climate change, global warming" will match those exact multi-word phrases.
What does "Whole Word Only" do?
When enabled, this ensures that a search for "cat" only matches the word "cat" and ignores "caterpillar" or "scatter". This prevents false positives in your analysis.
How can I save my highlighted text?
Click the "Save HTML" button above the preview. This downloads a standalone HTML file with all your color-coded highlights preserved, perfect for sharing with colleagues.
Is the search case-sensitive?
By default, no (searching "apple" finds "Apple"). However, you can toggle "Case Sensitive" ON in the Options panel if you need to distinguish between capitalized and lowercase terms.
How many keyword groups can I create?
You can create as many groups as you need! We provide 6 distinct colors that cycle automatically, helping you categorize complex text structures.
Is this useful for SEO?
Absolutely. You can use one color for your primary keywords and another for LSI (related) keywords to ensure your content has a good balance of topics.
Can I use Regular Expressions (RegEx)?
Our tool handles the complex RegEx for you behind the scenes based on your options. We support standard text patterns out of the box.
Does it work with large documents?
Yes, the tool is optimized to handle large blocks of text smoothly directly in your browser without lag.
Is my data private?
Yes, 100%. All processing happens on your device. We never send your text or keywords to any server.