Text Line Processor

Welcome to the Text Line Processor, a powerful text manipulation tool that helps you transform, format, and process text on a line-by-line basis. Whether you need to add line numbers, sort lines, remove duplicates, transform case, filter content, or apply custom templates, this tool provides 20+ operations to handle all your text processing needs with ease.

Available Operations

Template Placeholders

How to Use This Tool

1. Enter your text: Paste or type your text in the input area. Each line will be processed separately.
2. Select an operation: Choose from 20+ available operations in the dropdown menu.
3. Configure options: Depending on the operation, additional options will appear (templates, prefixes, filter text, etc.).
4. Set general options: Check "Skip blank lines" to exclude empty lines from operations like numbering.
5. Process and copy: Click "Process Text" to apply the operation, then copy the result with one click.

Common Use Cases

Detailed Operation Guide

Line Numbering Options

When using "Add Line Numbers", you can customize:

• Start Number: Begin numbering from any number (default: 1)
• Padding: Add leading zeros for consistent width (01, 001, etc.)
• Separator: Character(s) between number and line (". ", ") ", ": ", etc.)

Sorting Options

Multiple sorting methods are available:

• Alphabetical A-Z: Standard ascending sort (case-insensitive)
• Alphabetical Z-A: Descending sort
• By Length (Short → Long): Shortest lines first
• By Length (Long → Short): Longest lines first
• Numerically: Sort by the leading number in each line

Filter and Replace

Powerful text filtering capabilities:

• Filter Containing: Keep only lines that contain specified text
• Filter NOT Containing: Remove lines that contain specified text
• Filter by Regex: Use regular expression patterns for complex matching
• Find and Replace: Replace text occurrences across all lines

Frequently Asked Questions

How do I add line numbers to my text?

Select "Add Line Numbers" from the operation dropdown, then configure the starting number, number padding (for leading zeros), and separator. Click "Process Text" to add line numbers to each line. You can also use "Apply Template" with {{linenumber}}. {{line}} for more customization.

How do I remove duplicate lines from my text?

Select "Remove Duplicates" to remove exact duplicate lines, or "Remove Duplicates (Case-Insensitive)" to treat lines with different capitalization as duplicates. The tool preserves the first occurrence of each unique line and shows how many duplicates were removed.

What placeholders can I use in templates?

The Text Line Processor supports two placeholders: {{line}} which is replaced with the actual line content, and {{linenumber}} which is replaced with the current line number. For example, the template "[{{linenumber}}] {{line}}" would produce "[1] First line", "[2] Second line", etc.

How do I filter lines containing specific text?

Select "Filter Lines Containing..." from the operation dropdown, then enter the text you want to search for in the filter field. Only lines containing that text will be kept. Use "Filter Lines NOT Containing..." for the opposite effect. Toggle case sensitivity as needed.

Can I sort lines by different criteria?

Yes! The tool offers multiple sorting options: alphabetical ascending (A-Z), alphabetical descending (Z-A), by length (shortest or longest first), and numerical sorting (based on leading numbers in each line). All sorting maintains the complete line content.

How do I wrap each line with HTML tags?

Select "Wrap Lines" from the operation dropdown, then enter the opening tag (like <li>) in the "Before" field and the closing tag (like </li>) in the "After" field. Each line will be wrapped with these tags, perfect for creating HTML lists or other markup.

Additional Resources

• Text Processing - Wikipedia
• Regular Expressions - Wikipedia