# Filter Text Sentences

Quickly return all sentences that match a pattern or a regex

> Canonical page: https://elysiatools.com/en/tools/text-sentence-filter

- **Category:** Text Processing

- **Keywords:** text, filter, sentences, pattern, regex, match, search, extract, Text Sentence Filter

## Overview

Filter Text Sentences is a powerful utility designed to help you quickly extract, isolate, and organize specific sentences from large blocks of text based on custom patterns, regex, or structural criteria.

## Inputs

- **Text Input** (textarea): Enter text to filter sentences from...
- **Filter Type** (select)
- **Pattern/Text** (text): The pattern to match against (not used for all filter types)
- **Sentence Endings** (text): Characters that mark the end of sentences
- **Case Sensitive** (checkbox): Match case when filtering
- **Preserve Original Formatting** (checkbox): Keep original spacing and punctuation
- **Output Format** (select)
- **Remove Duplicates** (checkbox): Remove duplicate sentences
- **Sort Alphabetically** (checkbox): Sort results alphabetically
- **Max Length** (text): Maximum sentence length (for length filter type)
- **Max Words** (text): Maximum number of words (for word count filter type)

## When to use

- Extracting specific data points or quotes from long documents or transcripts.
- Cleaning up messy text by removing sentences that don't meet your length or content requirements.
- Analyzing writing style by isolating questions, statements, or sentences containing specific keywords.

## How it works

- Paste your source text into the input area.
- Select your preferred filter type, such as 'Contains Text', 'Regular Expression', or 'Is a Question'.
- Configure optional settings like case sensitivity, duplicate removal, or sorting.
- Choose your desired output format, such as a numbered list or newline-separated text, and generate your results.

## Use cases

- Isolating all questions from a customer support chat transcript for FAQ creation.
- Extracting specific sentences containing technical keywords from a long research paper.
- Cleaning a dataset by removing sentences that are too short or contain numeric values.

## Frequently asked questions

### Can I use regular expressions to filter sentences?

Yes, select the 'Regular Expression' filter type and enter your regex pattern in the Pattern field.

### How does the tool identify where a sentence ends?

The tool uses standard sentence-ending punctuation defined in the 'Sentence Endings' field, which defaults to periods, exclamation marks, and question marks.

### Can I remove duplicate sentences from my results?

Yes, simply check the 'Remove Duplicates' box before processing your text.

### What output formats are available?

You can output results as a paragraph, newline-separated, space-separated, numbered list, bullet points, or semicolon-separated.

### Is the filtering case-sensitive?

By default, it is not, but you can enable the 'Case Sensitive' checkbox to ensure exact matching.

## 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 Words in Text](https://elysiatools.com/en/tools/text-word-filter): Quickly return words in text 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
- [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
- [Emoji Extractor](https://elysiatools.com/en/tools/emoji-extractor): Extract all Unicode emoji from text, or optionally remove emojis
- [Bulk URL/Link Extractor](https://elysiatools.com/en/tools/bulk-url-extractor): Extract all HTTP/HTTPS links from text with deduplication and export options
- [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

## 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.