Add Line Numbers
Make individual lines easier to reference with MiniWebtool’s Add Line Numbers. Paste text to add sequential numbering, customize the prefix and suffix around each number, and choose how blank lines are handled.
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About Add Line Numbers
The Add Line Numbers tool automatically inserts sequential line numbers to each line of your text. Perfect for code review, document referencing, legal documents, scripts, and any content that needs numbered lines for easy reference.
At a Glance
Add Line Numbers inserts sequential numbers on each line of pasted text, at the start or the end of the line. You choose the prefix and suffix around each number and whether blank lines are removed first.
| Feature | What you get | Good for |
|---|---|---|
| Number position | Place the number at the start of each line or at the end. | Matching the numbering style a document or script uses |
| Prefix and suffix | Wrap each number in your own text, for example 1. or #1 or Line 1: or [1] or 1|. | Code review, legal papers and scripts that cite line numbers |
| Format presets | Presets for common formats such as the standard 1. and the hash #1. | Applying a usual format without typing it |
| Empty lines | Turn on Remove empty lines to strip blank lines before numbering. | Getting a compact numbered list |
| Live preview and copy | The numbered text updates as you change options, and a button copies it. | Pasting numbered text into another document |
Why Use Line Numbers?
Line numbers are essential for clear communication when discussing text-based content. Whether you're reviewing code, editing scripts, or referencing specific passages in documents, line numbers provide a universal reference system that everyone can follow.
How to Use This Tool
- Paste your text: Enter or paste the text you want to number into the input area.
- Choose a format: Select a preset format or customize your own prefix and suffix.
- Select position: Add numbers at the start (most common) or end of each line.
- Optional cleanup: Enable "Remove empty lines" to skip blank lines.
- Generate: Click "Add Line Numbers" and copy your result.
Format Examples
Hello World
This is a test
Third line
Format "1. " (Standard):
1. Hello World
2. This is a test
3. Third line
Format "#1 " (Hash):
#1 Hello World
#2 This is a test
#3 Third line
Format "Line 1: " (Verbose):
Line 1: Hello World
Line 2: This is a test
Line 3: Third line
Available Format Options
Prefix Options
The prefix appears before the line number. Common choices include:
- Empty - Just the number (e.g., "1")
- # - Hash symbol (e.g., "#1")
- Line - Word prefix (e.g., "Line 1")
- [ - Bracket (e.g., "[1")
Suffix Options
The suffix appears after the line number. Common choices include:
- . - Period and space (e.g., "1. ")
- : - Colon and space (e.g., "1: ")
- ) - Parenthesis and space (e.g., "1) ")
- ] - Bracket and space (e.g., "1] " or "[1] " with prefix)
- | - Pipe separator (e.g., "1| ")
Frequently Asked Questions
How do I add line numbers to text?
Simply paste your text into the input area, choose your preferred format (prefix, suffix, position), and click "Add Line Numbers". The tool will automatically number each line of your text. You can add numbers at the start or end of each line.
What formats can I use for line numbers?
You can customize line numbers with prefixes (like "#" or "Line ") and suffixes (like "." or ":" or ") "). Common formats include "1. ", "#1 ", "Line 1: ", or just plain numbers. The tool supports any custom prefix and suffix combination.
Can I remove blank lines before adding line numbers?
Yes! Enable the "Remove empty lines" option to automatically strip blank lines from your text before adding line numbers. This creates a cleaner, more compact numbered list.
Can I add line numbers at the end of each line?
Yes, you can choose to add line numbers either at the start or at the end of each line. Select the "End of line" option to append numbers after your text content.
Is there a limit to how much text I can process?
The tool can handle large amounts of text efficiently. For extremely large documents, you may want to process them in sections for better performance.
Reference this content, page, or tool as:
"Add Line Numbers" at https://MiniWebtool.com/add-line-numbers/ from MiniWebtool, https://MiniWebtool.com/
by miniwebtool team. Updated: Jan 18, 2026
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