#262 · Lists, Sorting & Lines Text Tool

Add Line Numbers

Add Line Numbers turns plain text into a numbered list. Choose decimal, padded, bracketed, alphabetic, or Roman numeral formats and control blank-line handling.

Text Input

Numbering options

Plain lines to number

Number format

Start number

start

Skip empty lines Live processing

Recent History

No history yet.

How to use this text tool

Paste or upload your text.
Choose the processing mode and enter any required pattern, prefix, suffix, delimiter, or N value.
Adjust options such as trimming, blank-line handling, regex, uniqueness, or live processing.
Copy, download, print, or swap the processed output.

What this tool does

Add Line Numbers converts the input into a focused output and reports how many lines were changed, skipped, selected, or extracted.

The tool splits text into lines, applies the selected rule to each line, then rebuilds the output while preserving line order unless a reverse option is selected.

Use the processing report to confirm whether the transformation affected the intended rows before copying the result.

Example

Example input: Apple Banana Orange. Run the tool to generate the cleaned or extracted output shown in the result panel.

Use cases

Clean copied documents and OCR text.
Prepare lists for spreadsheets, Markdown, code, or CMS publishing.
Filter or sample logs and tabular exports.
Batch edit line-based text without installing software.

Tips for better output

Use Auto mode first when the input format is mixed.
Enable trim when copied text contains inconsistent spaces.
Use preview statistics to verify changed versus skipped lines.
For multiple patterns, separate values with a vertical bar when supported.

Processing details

The page handles text locally with JavaScript. It supports CRLF, LF, Unicode text, empty rows, and common copied-document formatting.

Very large files depend on browser memory. Regex options should be tested on a small sample before processing important data.

FAQ

How do I number every line in a text file?

Paste the relevant text into Add Line Numbers, choose the options that match your goal, and run the tool. Review the output and metrics to number every line in a text file before copying or downloading the result.

Can I start line numbering from 100?

Yes. Add Line Numbers is designed to help you start line numbering from 100. Test the relevant option on a short sample first, then review and export the processed result.

How do I add Roman numerals to lines?

Paste the relevant text into Add Line Numbers, choose the options that match your goal, and run the tool. Review the output and metrics to add roman numerals to lines before copying or downloading the result.

Can I skip blank lines while numbering?

Yes. Add Line Numbers is designed to help you skip blank lines while numbering. Test the relevant option on a short sample first, then review and export the processed result.

How do I create alphabetic line numbers?

Paste the relevant text into Add Line Numbers, choose the options that match your goal, and run the tool. Review the output and metrics to create alphabetic line numbers before copying or downloading the result.

Related text tools

Sort Lines Alphabetically #248 · Lists, Sorting & Lines →Sort Lines Reverse Alphabetically #249 · Lists, Sorting & Lines →Sort Lines by Length #250 · Lists, Sorting & Lines →Sort Lines by Number #251 · Lists, Sorting & Lines →

Tool modules

Module	Purpose
Input parser	Reads pasted text, uploads, and line breaks.
Processing engine	Applies the selected rule to every eligible line.
Statistics	Reports total, changed, skipped, matched, or extracted lines.
Export	Downloads TXT, CSV, or JSON output.

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