# Filter Words in Text Quickly return words in text that match a pattern or a regex > Canonical page: https://elysiatools.com/en/tools/text-word-filter - **Category:** Text Processing - **Keywords:** text, filter, words, pattern, regex, match, search, extract, Text Word Filter ## Overview The Text Word Filter is a powerful utility designed to extract, isolate, and organize specific words from large blocks of text based on custom patterns, regular expressions, or linguistic criteria. ## Inputs - **Text Input** (textarea): Enter text to filter words from... - **Filter Type** (select) - **Pattern/Text** (text): The pattern to match against (required for most filter types) - **Word Boundary** (checkbox): Match whole words only - **Case Sensitive** (checkbox): Match case when filtering - **Output Format** (select) - **Custom Separator** (text): Custom separator between words (overrides output format) - **Remove Duplicates** (checkbox): Remove duplicate words from results - **Sort Alphabetically** (checkbox): Sort results alphabetically - **Max Length** (text): Maximum word length (for length filter type) - **Max Vowels** (text): Maximum number of vowels (for vowel filter type) - **Max Consonants** (text): Maximum number of consonants (for consonant filter type) ## When to use - Extracting specific keywords or data points from unstructured text documents. - Cleaning up word lists by removing duplicates or sorting them alphabetically. - Analyzing text structure by filtering words based on length, vowel counts, or specific character patterns. ## How it works - Paste your source text into the input area and select your preferred filter type, such as 'Contains', 'Regex', or 'Word Length'. - Define your matching criteria in the pattern field and toggle settings like 'Case Sensitive' or 'Word Boundary' to refine the results. - Choose your desired output format, such as a comma-separated list or a numbered list, to get the final filtered data. ## Use cases - Data extraction for SEO keyword research from long-form articles. - Cleaning and normalizing word lists for programming or linguistic analysis. - Identifying specific linguistic patterns like palindromes or anagrams within a text corpus. ## Frequently asked questions ### Can I use regular expressions to filter words? Yes, select the 'Regular Expression' filter type and enter your regex pattern in the pattern field. ### Does the tool support case-sensitive filtering? Yes, you can enable the 'Case Sensitive' checkbox to ensure matches respect character casing. ### How do I remove duplicate words from my results? Simply check the 'Remove Duplicates' option before processing your text. ### Can I filter words by their length? Yes, select the 'Word Length' filter type and specify the maximum length in the configuration settings. ### What output formats are available? You can output results as space-separated, newline-separated, comma-separated, or as a numbered list. ## Related tools - [Filter Text Paragraphs](https://elysiatools.com/en/tools/text-paragraph-filter): Quickly return all paragraphs that match a pattern or a regex - [Filter Text Sentences](https://elysiatools.com/en/tools/text-sentence-filter): Quickly return all sentences that match a pattern or a regex - [Bulk Email Extractor](https://elysiatools.com/en/tools/bulk-email-extractor): Extract all email addresses from input text, articles, web source code, or mixed content. Supports deduplication and export to JSON. - [Line Number Remover](https://elysiatools.com/en/tools/line-number-remover): Remove line numbers from text or code with intelligent pattern recognition - [Emoji Extractor](https://elysiatools.com/en/tools/emoji-extractor): Extract all Unicode emoji from text, or optionally remove emojis - [Chinese Character Extractor (汉字提取器)](https://elysiatools.com/en/tools/chinese-character-extractor): Extract all Chinese characters from text, filtering out punctuation and English letters, numbers, and non-Chinese symbols - [IP Address Extractor](https://elysiatools.com/en/tools/ip-address-extractor): Extract IPv4 and IPv6 addresses from log files, server logs, network traces, or any text content - [HTML Tag Stripper](https://elysiatools.com/en/tools/html-tag-stripper): Remove HTML tags and extract clean text content ## Samples - [Text with Emoji Samples](https://elysiatools.com/en/samples/text-with-emoji-samples): Mixed language text containing various Unicode emojis for testing emoji extraction - [Regex Replace Samples](https://elysiatools.com/en/samples/regex-replace): Collection of common and useful regex replacement patterns for text transformation and data cleaning - [Text with Date Samples](https://elysiatools.com/en/samples/text-with-date-samples): Text containing various date formats for testing date extraction and parsing - [Duplicate Line Samples](https://elysiatools.com/en/samples/text-duplicate-line-samples): Sample files with various types of duplicate lines for testing duplicate removal tools ## Related content - [Deliberate Text Corruption and Mutation for Testing](https://elysiatools.com/en/hubs/text-corruption-and-mutation-testing): Break clean text on purpose — filter, duplicate, and reverse sentences and words, inject random letters and symbols, shuffle lines and words, and prove every mutation stays controlled for parser stress tests, OCR rehearsal, and language experiments.