Text Tools
Add line numbers to text for notes, logs, lists, and structured review.
Use this line number adder to prefix each line with its position automatically. It is useful for notes, logs, snippets, copied records, review documents, and any line-based text where numbering makes reference, discussion, or editing easier.
Use this line number adder to prefix each line with its position automatically. It is useful for notes, logs, snippets, copied records, review documents, and any line-based text where numbering makes reference, discussion, or editing easier.
Use line number adder when you need a fast browser-based result without extra setup. It works well for quick checks, one-off tasks, and routine formatting or calculation work.
Read step-by-step usage guidance, best practices, and common mistakes.
See common questions and answers about input, output, and tool usage.
Review practical input and output examples before running the tool.
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Input
apple banana orange
Output
1. apple 2. banana 3. orange
Adds a simple number prefix to each line.
Input
error one error two
Output
1. error one 2. error two
Useful when referencing specific lines during troubleshooting.
Fix: Use a list-formatting tool if you need bullet points rather than numeric prefixes.
Fix: Remove empty lines first if you want numbering only on content lines.
Fix: Run the tool again after changing the line order or content.
It prefixes each line with its line number.
Yes. It is useful for numbered lists, notes, logs, and pasted text.
It adds numbering, but the original line text remains the same.
Yes. It works online in the browser.
It is useful when you need to reference, review, or discuss specific lines more clearly.