Paste the lines
Enter the content that should receive sequential labels.
Line numbering tool
Apply sequential numbers to lists, instructions, code samples, questions, and copied text. Control the numbering sequence and formatting without a spreadsheet formula.
Format tool
Enter the content that should receive sequential labels.
Choose the first number, increment, zero-padding width, prefix, and separator.
Each non-empty row receives the next value in the sequence.
Number procedures, checklists, requirements, and agenda items.
Add stable row numbers to names, IDs, keywords, or exported records.
Create numbered examples and reference-friendly text blocks.
Yes. Enter any starting integer and choose a positive or negative increment.
Yes. Set the padding width to create values such as 001, 002, and 003.
No. Empty rows are ignored so the sequence applies only to content lines.
Keep working
Remove blank and whitespace-only lines from text online, or collapse repeated blank rows into a single separator while preserving the remaining text.
Add text before or after every line in a list. Wrap values in quotes, build URLs, format SQL values, and edit columns in bulk online.
Sort lines alphabetically, naturally, or numerically in ascending or descending order. Clean blank lines and organize lists online.
Convert a newline-separated list into JSON, JavaScript, Python, PHP, or Java array syntax. Escape strings correctly and choose compact or formatted output.