# Even Line Extractor

Extract even-numbered lines from text content with support for various indexing methods and custom criteria

> Canonical page: https://elysiatools.com/en/tools/even-line-extractor

- **Category:** Text Processing

- **Keywords:** even, line, extract, select, filter, even-lines, even-rows, alternating

## Overview

The Even Line Extractor is a specialized text processing tool designed to isolate specific lines from your content based on numerical indexing or alternating patterns. Whether you are cleaning up datasets, parsing logs, or filtering structured text, this utility provides precise control over which lines are extracted and how they are formatted in the final output.

## Inputs

- **Text Content** (textarea): Enter or paste your text content here... Line 1 Line 2 Line 3 Line 4 Line 5 Line 6
- **Counting Method** (select)
- **Start Index** (number): Starting index (default: 2)
- **Trim White Space** (checkbox)
- **Include Empty Lines** (checkbox)
- **Preserve Original Line Numbers** (checkbox)
- **Show Line Numbers in Output** (checkbox)
- **Output Format** (select)

## When to use

- When you need to separate alternating data entries from a single text file.
- When cleaning up raw logs or code snippets that contain redundant or unwanted lines.
- When reformatting structured text into specific layouts like CSV, JSON, or tables for further analysis.

## How it works

- Paste your source text into the input area.
- Select your preferred counting method, such as 1-based indexing or alternating patterns.
- Configure optional settings like trimming whitespace or including empty lines to refine your results.
- Choose your desired output format and click process to generate the extracted content.

## Use cases

- Parsing interleaved log files to isolate specific event types.
- Converting raw text lists into structured JSON or CSV formats for database imports.
- Filtering out header or metadata lines from exported reports to focus on core data.

## Frequently asked questions

### Can I extract lines starting from a specific number?

Yes, you can adjust the 'Start Index' field to define exactly where the extraction process begins.

### Does this tool support non-standard indexing?

Yes, you can choose between 1-based, 0-based, odd-based, or custom pattern indexing to suit your specific data structure.

### Can I keep the original line numbers in the output?

Yes, by enabling the 'Preserve Original Line Numbers' option, the tool will retain the original indexing of your source text.

### What output formats are available?

You can export your results as a numbered list, table, JSON, CSV, plain text, or a before/after comparison.

### Will empty lines be included by default?

No, empty lines are excluded by default, but you can toggle the 'Include Empty Lines' checkbox to keep them in your output.

## Related tools

- [Odd Line Extractor](https://elysiatools.com/en/tools/odd-line-extractor): Extract odd-numbered lines from text content with support for various indexing methods and custom criteria
- [Phone Number Extractor](https://elysiatools.com/en/tools/phone-number-extractor): Extract phone numbers from mixed text with support for multiple countries and formats
- [SRT / ASS Subtitle Text Extractor](https://elysiatools.com/en/tools/srt-ass-subtitle-extract-text): Extract clean dialogue text from pasted SRT, ASS, or SSA subtitles.
- [Line Skip Extractor](https://elysiatools.com/en/tools/step-line-extractor): Extract lines from text at regular intervals with customizable skip and extract patterns. Perfect for sampling every Nth line or extracting multiple lines with gaps.
- [Text Line Extractor](https://elysiatools.com/en/tools/text-line-extractor): Extract specific lines from text by line numbers or ranges
- [Upside-Down Text](https://elysiatools.com/en/tools/upside-down-text): Flip text upside-down (ɥǝllo) with per-letter rotations, plus optional toggles to keep reading order and protect URLs/emails. Plain Unicode text, no font needed.
- [AI Currency & Number Extractor (AI货币数字提取器)](https://elysiatools.com/en/tools/ai-currency-extractor): Use AI to intelligently extract numbers, currencies, and financial amounts from text with their original formatting preserved
- [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.

## Samples

- [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
- [Changelog Extractor Samples](https://elysiatools.com/en/samples/changelog-extractor): Various changelog formats for testing changelog parsing and extraction tools
- [Markdown Link Extractor Samples](https://elysiatools.com/en/samples/markdown-with-links): Sample Markdown documents with various link types for testing the Markdown Link Extractor tool
- [Phone Number Extractor Samples](https://elysiatools.com/en/samples/phone-number-extractor): Collection of mixed text containing phone numbers from various countries for extraction testing