Line Number Adder
Prefix each line of text with configurable line numbers.
Text input
Add aligned line numbers to make references and reviews easier to discuss.
Numbered output
A quick way to make snippets easier to reference in docs and support threads.
Common use cases
- Numbering log excerpts for support
- Preparing step-by-step text references
- Making long snippets easier to discuss in review
FAQ
Can I start from a number other than one?
Yes. You can choose a starting value that fits your reference or review workflow.
Does it preserve the original line order?
Yes. The tool only prefixes each line and does not reorder or remove content.
How it works
Paste text, set a starting number and padding width, and generate a line-numbered version for docs, reviews, and support workflows. The result is produced immediately so you can review it before copying or using it elsewhere.
Privacy
The tool is designed to process ordinary input in your browser. Avoid pasting passwords, private keys, access tokens, personal records, or other sensitive production data into any online utility.
Limitations
This utility handles the focused workflow described on this page. Check the result before production use, especially when an input depends on a vendor-specific format, security rule, or external standard.