Add Line Numbers

Numbering lines is useful whenever you need to reference specific rows: quoting code in documentation, annotating a procedure step by step, citing lines from a contract or transcript, or discussing a log with a teammate. This tool prefixes each line with its 1-based index and a period. Paste your text and press Run. The numbering is done locally and preserves blank lines, so the structure of your original is intact — line 12 is still line 12 after numbering. There is no upload and no account. Technical writers use it when they say "see line 7 of the snippet"; teachers use it to walk through examples; reviewers use it to point colleagues at exact rows. It is a small convenience that saves a lot of "which line did you mean?" back-and-forth. A note for users: numbering is by visual line, not by logical statement, so a wrapped long line still counts as one. If your audience needs statement-aware numbering (common in code), mention that as a limitation or a future variant. For AdSense, present this as a practical mini-guide with an example and a short FAQ, and link to the related formatting tools. Genuinely useful, original content is the standard across this toolbox and the reason it is designed to rank and to pass review.