Free Repeated Words Finder – Find Duplicate & Overused Words

The Repeated Words Finder analyzes any text you paste or upload, counts how many times each word appears, calculates each word's percentage of total words, and displays the results in a ranked frequency table. It helps you identify overused words, spot repetitive language, and improve your writing quality by diversifying your vocabulary. You can configure options like case sensitivity, stop word filtering, minimum word length, and sort order.

The tool splits your text into individual words using whitespace and punctuation boundaries, counts how many times each unique word appears using a Map data structure, then calculates the percentage by dividing each word's count by the total number of (filtered) words and multiplying by 100. For example, if the word 'design' appears 8 times in a 400-word text (after filtering), its percentage would be 2.0%. Results are sorted by frequency (highest first) or alphabetically, depending on your preference.

Yes. The tool includes an 'Ignore common words' option that is enabled by default. This filters out stop words — extremely frequent English function words like 'the', 'a', 'an', 'and', 'or', 'but', 'is', 'are', 'was', 'were', 'to', 'of', 'in', 'for', 'it', 'this', 'that', as well as pronouns like 'he', 'she', 'they', 'we', 'you', 'I', and auxiliary verbs. Filtering these lets you focus on the meaningful content words that actually matter for your writing quality or SEO keyword density analysis.

By default, the tool is case-insensitive — 'The', 'the', and 'THE' are all counted as the same word. You can enable the 'Case-sensitive' option if you need to distinguish between different capitalizations. Case-sensitive mode is useful for analyzing proper nouns separately from common words, identifying acronyms like 'API' or 'HTML', or working with programming-related text where case carries semantic meaning.

By revealing which words you use most frequently, the tool exposes repetitive language patterns that are hard to spot during normal reading. If the word 'very' appears 12 times in a short article, you know to replace some instances with stronger alternatives. Writers, editors, students, bloggers, and content creators all use word frequency analysis to polish their work, avoid monotonous repetition, and produce more varied, engaging prose that holds readers' attention.

Yes, the Repeated Words Finder is completely free with no limitations whatsoever. There are no hidden charges, no premium tiers, and no sign-up required. You can analyze unlimited text as many times as you need. CoderDesign provides this tool as a free resource for writers, editors, students, SEO professionals, marketers, and anyone who wants to analyze word frequency in their text.

Absolutely. All processing happens entirely in your browser using JavaScript — nothing is sent to any server. Your text is never stored in any database, logged, or shared with any third party. You can verify this yourself by disconnecting from the internet and using the tool offline after the page has loaded. We do not use analytics or tracking on your text content.

Yes. The tool is excellent for SEO keyword density analysis. Paste your article or web page content, enable 'Ignore common words' to filter out stop words, and you will see exactly how often each keyword appears and what percentage of the total word count it represents. Most SEO experts recommend keeping primary keyword density between 1% and 3%. This tool shows you the exact percentage so you can optimize your content without over-stuffing keywords, which search engines like Google penalize.