About the Add Line Numbers Tool
The Add Line Numbers Tool helps you quickly add line numbers to any block of text — particularly useful for referencing specific lines in code, scripts, or documents.
Referring to "line 47" only works if the text actually has visible line numbers, and adding them by hand to a long document means typing out a number on every single line. This tool numbers every line — including blank ones, to keep the numbering accurate — instantly, so you can share a numbered snippet without any manual counting.
How to Use This Tool
Paste your text
Enter or paste the multi-line text you want to number.
Click "Add Line Numbers"
Every line is instantly prefixed with its line number.
Copy the result
Use the "Copy" button to save the numbered text.
Common Use Cases
Referencing Specific Lines in Code: Number lines in a code snippet before sharing it in a discussion or bug report.
Preparing a Numbered List for a Document: Turn a plain list into a numbered list for a report or presentation.
Reviewing Log Entries by Position: Number log lines to make it easier to reference a specific entry during debugging.
Creating Step-by-Step Instructions: Quickly number each step of a set of instructions pasted as plain lines.
Why Use This Tool
Fast & Efficient
Quickly adds line numbers to any text input.
Enhances Text Analysis
Useful for referencing and debugging structured text.
Ensures Consistency
Helps maintain proper formatting in coding, scripts, and documents.