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Multiline Merger

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

Only used when "Custom separator" is selected

Keep multiple consecutive spaces as they are

Text that will be added before the merged content

Text that will be added after the merged content

Key Facts

Category
Text Processing
Input Types
textarea, select, text, checkbox, number
Output Type
text
Sample Coverage
4
API Ready
Yes

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.

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.

Examples

1. Creating a CSV-ready list

Data Analyst
Background
You have a list of 50 customer IDs copied from a vertical column in a spreadsheet.
Problem
You need these IDs in a single line separated by commas to use in a SQL query.
How to Use
Paste the IDs, select 'Comma (, )' as the separator, and ensure 'Remove Empty Lines' is checked.
Example Config
separator: comma, removeEmptyLines: true
Outcome
A clean, comma-separated string ready to be pasted into your database management tool.

2. Formatting a SQL IN clause

Developer
Background
You have a list of product codes that need to be used in a 'WHERE id IN (...)' query.
Problem
Manually adding quotes and commas to every item is tedious and error-prone.
How to Use
Paste the product codes, set the separator to comma, and use the prefix '(' and suffix ')'.
Example Config
separator: comma, addPrefix: '(', addSuffix: ')'
Outcome
A perfectly formatted string ready for immediate use in your SQL script.

Try with Samples

video, text
Regex Replace Samples
Collection of common and useful regex replacement patterns for text transformation and data cleaning
matched family video,text
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Duplicate Line Samples
Sample files with various types of duplicate lines for testing duplicate removal tools
matched family video,text
video, text
Hex/Unicode Encoding Format Samples
Examples of hex (\xXX) and unicode (\uXXXX) escape sequence encoding formats
matched family text
text
Text Case Format Samples
Examples of different text case formats: camelCase, snake_case, kebab-case, PascalCase, and more
matched family text
text

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FAQ

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.

API Documentation

Request Endpoint

POST /en/api/tools/multiline-merger

Request Parameters

Parameter Name Type Required Description
text textarea Yes -
separator select No -
customSeparator text No Only used when "Custom separator" is selected
trimMode select No -
removeEmptyLines checkbox No -
preserveSpaces checkbox No Keep multiple consecutive spaces as they are
maxLineLength number No -
addPrefix text No Text that will be added before the merged content
addSuffix text No Text that will be added after the merged content

Response Format

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}
Text: Text

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-multiline-merger": {
      "name": "multiline-merger",
      "description": "Merge multiple lines into a single line with customizable separators and formatting options",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=multiline-merger",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]