# Multiline Merger

Merge multiple lines into a single line with customizable separators and formatting options

> Canonical page: https://elysiatools.com/en/tools/multiline-merger

- **Category:** Text Processing

- **Keywords:** merge, combine, multiline, single line, join, concatenate, format, text

## Overview

The Multiline Merger is a versatile text processing tool designed to consolidate multiple lines of text into a single, continuous string, offering precise control over separators, trimming, and formatting.

## Inputs

- **Text Input** (textarea): Enter multiline text to merge into a single line...
- **Line Separator** (select)
- **Custom Separator** (text): Only used when "Custom separator" is selected
- **Trim Mode** (select)
- **Remove Empty Lines** (checkbox)
- **Preserve Original Spaces** (checkbox): Keep multiple consecutive spaces as they are
- **Maximum Line Length** (number): Maximum characters per line (0 = no limit)
- **Add Prefix** (text): Text that will be added before the merged content
- **Add Suffix** (text): Text that will be added after the merged content

## When to use

- Converting vertical lists of data into comma-separated values for database imports.
- Cleaning up messy text files by removing empty lines and standardizing spacing.
- Preparing long-form content for single-line display or specific API input requirements.

## How it works

- Paste your multiline text into the input area.
- Select your preferred separator or define a custom one.
- Adjust trimming, empty line removal, and prefix/suffix settings as needed.
- Click the process button to generate your merged single-line output.

## Use cases

- Formatting email addresses or IDs from a list into a single comma-separated string for bulk mailing or queries.
- Normalizing log files by merging wrapped lines into single entries for easier analysis.
- Generating SQL 'IN' clauses by combining a list of values into a comma-separated format wrapped in parentheses.

## Frequently asked questions

### Can I use a custom separator?

Yes, select 'Custom separator' from the dropdown and enter your desired character or string in the provided field.

### Does the tool remove empty lines automatically?

Yes, the 'Remove Empty Lines' option is enabled by default to ensure a clean output.

### Can I add text to the beginning or end of the result?

Yes, you can use the 'Add Prefix' and 'Add Suffix' fields to wrap your merged content with specific text.

### Is there a limit to how much text I can merge?

While there is no strict character limit, performance may vary with extremely large datasets; for best results, process text in manageable chunks.

### How do I keep the original spacing between words?

Enable the 'Preserve Original Spaces' checkbox to prevent the tool from collapsing multiple consecutive spaces.

## Related tools

- [Line Number Remover](https://elysiatools.com/en/tools/line-number-remover): Remove line numbers from text or code with intelligent pattern recognition
- [Newline Normalizer](https://elysiatools.com/en/tools/newline-normalizer): Normalize and unify newline characters in text to consistent line ending format
- [Phone Number Extractor](https://elysiatools.com/en/tools/phone-number-extractor): Extract phone numbers from mixed text with support for multiple countries and formats
- [Prefix Remover](https://elysiatools.com/en/tools/prefix-remover): Remove common prefixes from each line with intelligent detection and customizable options
- [Suffix Remover](https://elysiatools.com/en/tools/suffix-remover): Remove common suffixes from each line with intelligent detection and customizable options
- [Markdown List Formatter](https://elysiatools.com/en/tools/markdown-list-formatter): Convert each line of text into Markdown list items or numbered lists
- [Text Unindenter](https://elysiatools.com/en/tools/text-unindenter): Quickly delete indentation from each text line
- [BOM Character Remover](https://elysiatools.com/en/tools/data-bom-remover): Remove BOM (Byte Order Mark) characters from text and file content. Perfect for cleaning up text files that have encoding issues, fixing CSV imports, and preparing data for processing. Features: - Detect and remove UTF-8 BOM (EF BB BF) - Detect and remove UTF-16 BOM (FE FF or FF FE) - Detect and remove UTF-32 BOM (00 00 FE FF or FF FE 00 00) - Support multiple input formats - Visual BOM character display - Detailed detection report - Support for batch text processing Common Use Cases: - Fix CSV file import errors - Clean up text file encoding issues - Prepare data for JSON parsing - Fix XML parsing problems - Resolve API data encoding conflicts - Standardize text data format

## 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
- [Special Characters Samples](https://elysiatools.com/en/samples/text-special-characters-samples): Sample text files with various special characters, punctuation, and symbols for testing non-alphanumeric character removal
- [Android File Operations Java Samples](https://elysiatools.com/en/samples/android-file-operations-java): Android Java file operations examples including text file read/write, file copy/move, directory traversal, and file validation
- [Android File Operations Kotlin Samples](https://elysiatools.com/en/samples/android-file-operations-kotlin): Android Kotlin file operations examples including text file read/write, file copy/move, directory traversal, and file validation